Weed suppression method

FIELD: agriculture, in particular, suppression of weeds with developed triazine resistance resulted from selection stress acting upon weed population and caused by repeated application of triazines.

SUBSTANCE: method involves introducing into said weed locus combination of mesotrione and triazine, selected from the group consisting of atrazine, cyanazine, propazine, terbutilazine, trietazine, simazine and metribuzine. Mesotrione is introduced in an amount of from 20 to 210 g/hectare, triazine in an amount of from 0.1 to 2 kg/hectare.

EFFECT: increased efficiency of said combination as compared to that of mesotrione in case said combination is used with regard to triazine tolerable weeds.

3 cl, 9 tbl, 6 ex

 

The present invention relates to a combination mesotrione and triazine herbicide used to suppress the growth of unwanted target plants that exhibit tolerance to triazine.

Protection of crops from weeds and other vegetation, which inhibit the growth of crops is a serious problem in agriculture. To facilitate in solving this problem, researchers in the field of chemical synthesis has created a large variety of chemical compounds and chemicals, effective from the point of view of dealing with this unwanted growth. The literature describes chemical herbicides of different types and a large number of them finds commercial application. Commercial herbicides, and herbicides, which are still at the stage of development described in the manual of pesticides (The Pesticide Manual, 12thedition), published in 2000 by the British Council for the protection of crops (British Crop Protection Council). All pesticides are specifically identified in the present application, can be found in the specified manual (The Pesticide Manual).

Triazine represent one well-known class of herbicides. It was proved that the norm of their application is very effective against a wide range of weeds. However, in agriculture, there were a growing problem with the emergence of the weeds, who has developed tolerance to triazine. Under the "tolerance" it is important to understand the fact that these weeds are not so easily affected or destroyed by the use of triazine, as plants with normal phenotype. In a typical case, these weeds are affected to a small extent or not at all astonished at the use of triazines in normal to make doses. Tolerance occurs naturally and is stored in connection with the action of selection on a population of weeds by repeated application of triazine herbicides. Because the weeds have developed an almost complete tolerance to triazine, this means that they actually are not affected by triazinone when used to make normal commercial doses. Sometimes also use the term "sustainability" to describe such weeds, in particular in cases where they have inherited the ability to survive handling triazine.

Tolerance to triazine is an obvious problem, either because weeds grow in an increasing degree, which may reduce the yield of crops, or, alternatively, should be used increased amounts of triazine, which increases the processing cost and creates a risk of environmental pollution.

The authors found that the mixture mesotrione and triazines can use the I to suppress tolerant to triazine weeds. Mutation is a known herbicide. It is known that a mixture of mesotrione and atrazine (triazine) have a synergistic effect on the destruction of some of the weeds that described in U.S. patent 5698493.

However, it is not expected that this mixture will have any effect with respect to and above the effect mesotrione when using it on tolerant to triazine weeds, because, by definition, triazine have little or no effect on them when making in normal doses. In contrast to these expectations, the authors found that the presence of mesotrione, apparently, restores the sensitivity of tolerant weeds to triazines, making them in some cases almost as sensitive to triazine as intolerant weeds.

In accordance with this invention proposes a method of suppressing tolerant to triazine weeds by making combinations mesotrione and triazine in the locus with these weeds.

This combination can be made sequentially, with any of the components can be applied first, although preferably first applied mesotrione. Preferably the components applied with an interval of 3 days, and most preferably with an interval of 24 hours relative to each other. Alternative and preferably m is sotion and triazine put together in a single composition.

Field processing mesotrione bring in a dose of at least 20 g AI/ha, more preferably at least 50 g A.I/ha, Preferably mesotrione bring in a dose of less than 210 g/ha, more preferably less than 150 g/ha, Preferably the triazine bring in a dose of at least 0.1 kg/ha, more preferably at least 0.5 kg/ha, Preferably the triazine bring in a dose of less than 2 kg/ha, more preferably less than 1 kg/ha In trials in greenhouses using much smaller amounts of both components. For example, when tested in greenhouses mesotrione preferably bring in a dose of from 0.1 to 10 g/ha, more preferably in a dose of from 0.3 to 5 g/ha, most preferably at a dose of from 0.5 to 4 g/ha and preferably the triazine bring in a dose of from 1 to 100 g/ha, more preferably from 5 to 80 g/ha, and most preferably from 15 to 60 g/ha

Mutation may take the form of a metal salt, such as salts of copper, as described in US 5912207.

Examples of triazines include ametrine is high, atrazine, cyanazine, desmetryn, deltamethrin, prometon, prometryn, propazine, terbumeton, TERBUTHYLAZINE, terbutryn, triacetin, Simazine and simetryn. In the context of the present description, the term "triazine" also includes triazinone, such as metribuzin. Preferred atrazine, metribuzin and terbutylazine, particularly atrazine.

The method according to the present image is the shadow comprises applying the compositions according to traditional methods per locus, growing tolerant weeds, where you want to confront them. The term "locus" includes soil, seeds and seedlings, as well as developed plants.

This method can be applied to those areas where there are no desirable plants, such as crops, or where it is planted with desirable plants, such as crops, but which have not yet ascended ("pre-emergence" processing). The method can also be used on a wide range of desirable growing plants, such as crops ("post-harvest processing). Examples of crops include corn, wheat, rice, potatoes or sugar beet. Suitable desirable plants include plants that are tolerant to one or more of the components, i.e. mesotrione or triazine, in particular, when this method is used for post-harvest processing, or which are tolerant to any other herbicide, such as glyphosate, which can be optionally included in the composition. Tolerance can be a natural tolerance, which is inherited, or can be obtained by selective breeding or can be artificially given to plants through genetic modification. Tolerance means low sensitivity is alnost to defeat, caused by a specific herbicide. Plants can be modified or grown to acquire tolerance, for example, HPPD inhibitors, such as mesotrione, or EPSPS protein inhibitors, such as glyphosate. Corn has a genetic tolerance to mesotrione, so this method is particularly useful for suppressing sensitive to triazine weeds of maize.

Examples of weeds tolerant phenotype include Redroot amaranth (AMARE), white pigweed (CHEAL) and black nightshade (SOLNI). The method is especially effective against AMARE. Tolerant types well known in the art and can be easily identified when using the triazine herbicide such as atrazine, terbutylazine or Simazine, when comparing the effect of the application at the same stage of growth in non-tolerant phenotype, also known in this technical field.

Used in the practice of the present invention combination may be applied in a variety of ways, known to experts in the art, and in different concentrations. The combination is useful for combating the growth of unwanted vegetative plants by pre-emergence or post-harvest depositing in the area in which it is desirable to carry out the specified suppression of weeds.

The components of the combination according to the present invention (regardless of how they shall live, or together) is suitable for application in the form of agricultural-acceptable compositions. The composition(s) include(s) an agricultural acceptable carrier. In practice, the specified composition contribute in the form of a preparation containing various accessories and media known or used in industry to facilitate the formation of a dispersion. The choice of the composition and method of application for each of the connection can have an impact on its activity and, accordingly, can be made a choice. Compositions according to the present invention can be thus prepared in the form of granules, in the form of wettable powders, as emulsifiable concentrates, in the form of powders or Farrukh Dustov in the form of free flowing products in the form of solutions, suspensions or emulsions, as well as in the form of controlled release, such as microcapsules. These drugs may contain such small quantities, such as about 0.5 wt.%, prior to such large quantities as 95 wt.% or more of the active ingredient. The optimum amount for any given connection depends on the nature of the composition used for coating the device and on the nature of plants to be processed to suppress weeds.

Wettable powders have the form of fine particles, which can easily be dispersed in water or other liquid media. The particles contain active in radiant, held in a solid matrix. Typical solid matrices include fallerovo earth, kaolin clays, silicas, and other easily wettable organic or inorganic solid materials. OK wettable powders contain from about 5% to about 95% of the active ingredient plus a small amount of wetting means dispersing means or emulsifier.

Emulsifiable concentrates are homogeneous liquid compositions dispersible in water or other liquids, and may consist entirely of the active compound and a liquid or solid emulsifying agent, or may include a liquid carrier, such as xylene, heavy aromatic fraction of oil, isophorone and other non-volatile organic solvents. When using these concentrates are dispersed in water or other liquid and is usually applied by spraying to the area to be processed. The amount of active ingredient may vary from about 0.5% to about 95% of the concentrate.

The composition of the granules include extruded materials, and large particles, and is usually applied without dilution to the area in which it is desirable to achieve suppression of vegetation. Typical carriers for the compositions of granules include sand, fallerovo land, attapulgite, bentonite clay, montmorillonite clay, vermica is it perlite and other organic or inorganic materials, which are able to absorb or can be coated with the active connection. The composition of the granules in the norm contain from about 5% to about 25% of active ingredients which may include surface-active substances, such as heavy aromatic fraction of crude oil, kerosene and other petroleum fractions, or vegetable oils and/or adhesive material, such as dextrins, animal glue or synthetic resins.

Dusty are free flowing mixture of the active ingredient with finely ground solids such as talc, clay, flour and other organic and inorganic solid materials, acting as dispersants and carriers.

Microcapsules are typically droplets or granules of active material enclosed in an inert porous membrane that allows the prisoner to the shell material to stand out in the environment with controlled speed. The encapsulated droplets are typically a diameter of about 1 to 50 microns. Enclosed in the sheath fluid is typically from about 50 wt.% to 95 wt.% the weight of the entire capsule, and may, in addition to the active ingredient, to enable the solvent. Encapsulated granules are mostly porous, granules porous membrane, cover the openings of the porous granules and retaining the active material in liquid form inside the porous granules. Granules are typically the size from 1 millimeter to 1 centimeter, preferably from 1 to 2 millimeters in diameter. Pellets obtained by extrusion, agglomeration or granulation drying of droplets of the sprayed molten material, or they can be of natural origin. Examples of such materials include vermiculite, vitrified clay, kaolin, attapulgite, sawdust and granular coal. The material of the shell or membrane includes natural and synthetic rubbers, cellulose materials, styrene-butadiene copolymers, polyacrylonitrile, polyacrylates, polyesters, polyamides, polyureas, polyurethanes and starch xanthate.

Other compositions useful for application as a herbicide, include simple solutions of the active ingredient in a solvent such as acetone, alkylated naphthalenes, xylene and other organic solvents in which the desired product is completely soluble at the desired concentration. Can also be sprayed under pressure forms in which the active ingredient is dispersed in finely ground form as a result of evaporation of low-boiling solvent is used as the dispersant.

Many of these com is Azizi include means for wetting, dispersing or emulsifying agents. Examples are alkyl - and alkylarylsulfonates and sulfates and their salts, polyhydric alcohols, polyethoxysiloxane alcohols, esters and fatty amines. These funds in case of their use are normal from 0.1 wt.% up to 15 wt.% from the whole composition.

Each of these compositions can be prepared in the form of packages containing the herbicide together with other ingredients of the composition (diluents, emulsifiers, surfactants and the like). The composition can also be prepared using the method of mixing in the tank, according to which receive the ingredients separately and combine them at the place of processing.

These compositions can be applied by conventional means on the square on which it is desirable to carry out the suppression of weeds. Dusty and liquid compositions can, for example, be applied using an electric sprayer, broom, hand sprayers and spray-sprays. The composition can also be applied to aircraft in the form of a dust or spray, or using a rope for drawing. To modify or control growth of germinating seeds or seedlings gustova or liquid compositions can be distributed in the soil to a depth of at least half an inch from the soil surface or may be applied only to the soil surface by rasbridge the project or spraying. The composition can also be applied by adding to water for irrigation. When this is achieved the penetration of the compositions in the soil together with water for irrigation. Gustavia composition, the composition of the granules or liquid composition applied on the soil surface, can be distributed in layers below the soil surface by conventional means, such as disking, harrowing and hoeing.

If necessary or desirable, in the case of specific applications, or certain cultures, the composition according to the present invention can contain an effective amount of antidote (sometimes also referred to as a "safener") for mesotrione and/or triazine. Experts in the art are familiar with the appropriate antidotes.

In addition, other active as biocides ingredients or compositions can be combined with a synergistic composition according to the present invention. For example, the composition may contain, in addition to mesotrione and triazine, insecticides, fungicides, bactericides, acaricides or nematicides with the aim of expanding the spectrum.

As is clear to a person skilled in the technical field, during testing of herbicides many factors can affect the results of the individual tests which are not easy to control, and may affect non-repeatable floor is emich results. For example, the results of, among other factors, may largely depend on environmental factors such as sunlight and water, soil type, soil pH, temperature, and humidity. Depth of planting, the level of application of individual and combined herbicides, the level of application of any antidote and the proportion of each of the individual herbicides with each other and/or with the antidote, as well as the nature of a given culture or weeds on which a test is performed, may also affect the test results. Results may vary from culture to culture within a particular culture.

Although the invention is described with reference to preferred variants of its implementation and the specific examples, the scope of the present invention is not limited to only the options of implementation. As it is obvious to experts in the field, in the above-described invention may be made of modifications and adaptations without departing from the principles and scope of the present invention, which is defined by the attached claims.

EXAMPLES

Prepare in the usual areas with weeds when growing pots with the weed amaranth Redroot (AMARE) as a normal wild varieties, and particularly its variant known fact that shows triazine tolerance. Soils represent a muddy fatty loam, mixed with fertilizer (12-12-12) in the amount of 128 g of fertilizer per 10 gallons of soil.

Tolerant seeds are sown on 13 days earlier than non-tolerant seeds to seedlings reached a similar size at the time of application of the herbicide. Adopted by the difference in time of seeding based on the results of earlier observations of velocity of germination. By the time of application of herbicide tolerant plants reach a stage 6-9 sheet, whereas intolerant plants - stage 5 of the worksheet.

Prepare solutions of the herbicide when dissolved herbicide(s) in tap water containing 0.5% of a commercial surfactant tween-20. The solutions are applied at a dose of 200 l/ha under pressure 40 psi using a spray nozzle E. After spraying, the plants are placed in a greenhouse with day/night temperature, respectively 29/20°s day/night humidity, component 45/65%, respectively, and a light period of 14 hours.

Herbicides applied, as shown in Table 1. The figures shown in the column for mesotrione and atrazine showed a dose g/ha of herbicide made during the growing vessel. The numbers in the subsequent columns indicate the percentage of lesions observed 13 days after application of the appropriate herbicide composition. Values range from 0 (no effect) to 100 (dead plants the Oia). The focus of the present invention is an impact on tolerant plants and effect in respect of non-tolerant plants is defined only for comparison purposes.

From Table 1 we can see:

As expected, mutation damage as tolerant and intolerant plants (compositions C1-C3).

As expected, one atrazine not affect tolerant plants (composition C4-C7), while significantly affects intolerant plants.

It was unexpectedly found that the adding together of atrazine and mesotrione damage that far exceeds the degree of the damage caused by one mesotrione. For example, it was expected that the composition is 8 to give a tolerant plants percentage of defeat 2, because mutation dose of 0.90 g/ha gives the defeat at level 2, and atrazine at a dose of 60 g/ha has no effect (composition C7). In reality, however, the composition 8 gives the degree of the damage 46. When you use the higher doses mesotrione (tracks 9-12) percentage of lesion tolerant plants approaching the degree of destruction intolerant plants. The ability to overcome the resistance of weeds to the triazine by adding mesotrione is an important breakthrough.

Table is CA 1
Mesotrione

g/ha
Atrazine

g/ha
Intolerant plantsTolerant plants
The observed effectThe observed effectThe expected effect
C10,30-20-
C20,90-72-
C32,70-3829-
C4-530-
C5-15180-
C6-30370-
C7-60600-
10,3053020
20,30155910
30,30306440
40,30 6084110
50,9056272
60,901587132
70,903091462
80,906097462
92,705867529
102,7015938129
112,7030978029
122,7060998929

1. The synergistic mixture mesotrione/Simazine on the plant AMARE resistant triazine, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. Source of seed plants AMARE resistant triazine is Herbiseed received from Jealotts' Hill. The seeds for this experience came from plants grown from this seed lot. The soil type was a fatty who loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer. Lot of seeds resistant to triazines, were sown on 23 March 2001.

Method of use

Plants were grown and treated with mesotrione, Simazine catabolic or a combination of 19 April 2001, when the plants resistant to triazines were on stage 6-7 sheet. For preparation of all solutions for spraying used tap water containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione (as the drug Callisto 4SC; recipe # WF2795, party # 16951-16-01) was 1, 2, 3, and 8 g A.I/ha and doses of Simazine (as the drug Princep Caliber 90; ID # FL991053, party # SG810029) was 20, 40, 80, 160 and 960 g AI/ha was Applied to all combinations of these doses, except for the dose of Simazine in 960 g A.I./ha Sprayer washed three times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 14C under the following environmental conditions: temperature 29/20° (84/68° (F) day/night, 56/84% day/night relative humidity and photoperiod of 14 hours.

Assessment

Visual assessment using a scale from 0% (no lesions) to 100% (plant death) were made in 10 and 20 DAA DAA (days after application). Using the above scale shot is all estimates and summarized in tables. The data is then processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 2.

2. The synergistic mixture mesotrione/Simazine on plants CHEAL and SOLNI resistant triazine, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. Plant seeds SOLNI and CHEAL-resistant triazine purchased from Herbiseed colleagues Jealotts' Hill and then placed in the WRC. The soil type was a fatty loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer. Data on seedlings is shown in table 3.

Method of use

Plants were grown and treated with mesotrione (as the drug Callisto 4SC; recipe # WF2795, party # 16951-16-01) and Simazine catabolic (as the drug Princep Caliber 90; ID # FL991053, party # SG810029), applied individually and in combination on 20 April 2001. Stage of growth of each species is shown in table 3.

Table 3
Date of sowing and stage of growth CHEAL and SOLNI during processing
SpeciesSeedingStage of growth is on 4/20/01
CHEALMarch 23, 200110-12 sheet with very rarely
common terminal
flower Bud
SOLNIMarch 28, 20015-leaf and a few
flower buds

For preparation of all solutions for spraying used WRC tap water containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione was 0.1, 0.3, and 0.6 and 0.9 g A.I/ha and doses of Simazine was 10, 25, 50, 125 and 750 g A.I/ha Each herbicide was applied individually and in all combinations, except for the dose of Simazine in 750 g A.I./ha Dose of 750 g A.I./ha of Simazine was applied to obtain estimates of the level of resistance to triazines. The sprayer was washed three times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 16B under the following environmental conditions: temperature 26/18° (78/65° (F) day/night, 44/68% day/night relative humidity and photoperiod of 14 hours.

Assessment

Visual assessment using a scale from 0% (no lesions) to 100% (g is the Belle of the plants) were made in 10 and 20 DAA DAA (days after application). The data were processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 4.

3. The synergistic mixture mesotrione/TERBUTHYLAZINE on the plant AMRRE resistant triazine, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. The primary source plants AMARE resistant triazine was a Herbiseed received from Jealotts' Hill. The seeds for this experience came from plants grown from this seed lot. The soil type was a fatty loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer. Seeds from the same batch of seeds resistant to triazines, were sown on 23 March 2001.

Method of use

Plants were grown and treated with mesotrione, terbutylazine or a combination of 25 April 2001, when the plants resistant to triazines were on stage 4-7 sheet and a height of 25-40 mm due to the relatively large difference in size among plants resistant to triazines, broke them into groups from the very large (the first group) to the smallest (the fourth group) (table 5). For preparation of all solutions for priscian what I used tap water, containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione (as the drug Callisto 4SC) was 1, 2, 3, and 8 g A.I/ha and dose terbutylazine (as the drug Gardoprim 500FW) was 20, 40, 80, 160 and 960 g AI/ha was Applied to all combinations of these doses, except for the dose terbutylazine in 960 g A.I./ha Sprayer washed four times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 14C under the following environmental conditions: temperature 29/20° (84/68° (F) day/night, 56/84% day/night relative humidity and photoperiod of 14 hours.

Table 5
Growth stage of plants that are resistant to triazines (T), during processing
BiotypeGroup #The number of leavesHeight (mm)
T1730-40
T25-625-35
T3525-30
T44-525-35

Assessment

Visual assessment using the Cabinet is s from 0% (no lesions) to 100% (plant death) were made in 10 and 20 DAA DAA (days after application). The data were processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 6.

4. The synergistic mixture mesotrione/TERBUTHYLAZINE on plants CHEAL and SOLNI resistant triazine, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. The primary source of seed plants SOLNI and CHEAL-resistant triazine was a Jealotts' Hill. Seeds CHEAL used in this study were collected from control plants in US07-00-H110.

The soil type was a fatty loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer.

Method of use

Plants CHEAL and SOLNI were grown and treated with mesotrione (as the drug Callisto 4SC; drug # WF2795, party # 16951-16-01) and TERBUTHYLAZINE (as the drug Gardoprim 500FW), applied individually and in combination on 20 April 2001. Stage of growth of each species is shown in table 3.

Table 3
Date of sowing and stage of growth CHEAL and SOLNI during processing
Species SeedingGrowth stage on 4/20/01
CHEALMarch 23, 200110-12 sheet with very rarely
common terminal
flower Bud, 40-60 mm
SOLNIMarch 28, 20019-list of 70-90 mm

For preparation of all solutions for spraying used WRC tap water containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione was 0.1, 0.3, and 0.6 and 0.9 g A.I/ha and dose TERBUTHYLAZINE was 10, 25, 50, 125 and 750 g A.I/ha Each herbicide was applied individually and in all combinations, except for the dose terbutylazine 750 g A.I./ha Dose of 750 g A.I./ha TERBUTHYLAZINE was used to obtain estimates of the level of resistance to triazines. The sprayer was washed four times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 16B under the following environmental conditions: temperature 29/20° (84/68° (F) day/night, 56/84% day/night relative humidity and photoperiod of 14 hours.

Assessment

Visual assessment using a scale from 0% (no lesions) to 100% (killed the al plant) were taken after 10 and 20 DAA DAA (days after application). For plants SOLNI received the amount of dry plant mass (DW). The data were processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 7.

5. The synergistic mixture mesotrione/metribuzin on the plant AMARE resistant triazine, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. The primary source of seed plants AMARE resistant triazine was a Herbiseed obtained through Jealotts' Hill. The seeds for this experience came from plants grown from this seed lot. A small number of plots planted samename resistant triazine received from Syngenta's Vero Beach. They were included in this experience to determine the relative level of resistance to triazine compared to the resistance to triazines biotype obtained from Herbiseed. Seeds Vera Beach will be in demand for use in subsequent experience. The soil type was a fatty loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer. Seeds from the same batch of seeds resistant to triazines, were sown on 23 March 2001.

Method of use

Plants grow is Ali and processed by mesotrione, metribuzin or a combination of 23 April 2001, when the plants resistant to triazines were on stage 7 of the sheet and the height of 65-75 mm For preparation of all solutions for spraying used tap water containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione (as the drug Callisto 4SC, recipe #WF2795, series #16951-16-01) was 1, 2, 4 and 8 g AI/ha and a dose of metribuzin (as the drug Sencor 75DF; ID#FL-010410, series #N) was 20, 40, 80, 160 and 960 g AI/ha was Applied to all combinations of these doses, except for the dose of metribuzin in 960 g/ha Sprayer washed three times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 14C under the following environmental conditions: temperature 29/20° (84/68° (F) day/night, 56/84% day/night relative humidity and photoperiod of 14 hours.

Assessment

Visual assessment using a scale from 0% (no lesions) to 100% (plant death) were made in 10 and 20 DAA DAA (days after application). The data were processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 8.

6. The synergistic mixture mesotrione/meter is Buzin on plants CHEAL and SOLNI, resistant to triazines, when post-harvest applications

Materials and methods

The build experience is a randomised complete chart with treatments in quadruplicate. Plant seeds SOLNI and CHEAL-resistant triazine purchased from Herbiseed colleagues at Jealotts' Hill and then placed in the WRC. The soil type was a fatty loam (loam:clay of Nicholso/Nichol's clay; 2:1). The soil was mixed with a full dose (128 g 12-12-12 10 gallons of soil fertilizer. Date of sowing are shown in table 3.

Method of use

Plants CHEAL and SOLNI were grown and treated with mesotrione (as the drug Callisto 4SC; recipe #WF2795, party #16951-16-01) and metribuzin (as the drug Sencor 75DF; ID #FL-010410, party #N), applied individually and in combination on 20 April 2001. Stage of growth of each species is shown in table 3.

Table 3
Date of sowing and stage of growth CHEAL and SOLNI during processing
SpeciesSeedingGrowth stage on 4/20/01
CHEALMarch 23, 200110-12 sheet with very rarely
common terminal
flower Bud, 40-60 mm
SOLNIMarch 28, 20015-leaf and a few
flower buds

For preparation of all solutions for spraying used WRC tap water containing 0.5% tween-20. Solutions for treatments were applied at 200 l/ha and 40 pounds per square inch, using A the nozzle. Dose mesotrione was 0.1, 0.3, and 0.6 and 0.9 g AI/ha and a dose of metribuzin was 10, 25, 50, 125 and 750 g A.I/ha Each herbicide was applied individually and in all combinations, except for the dose of metribuzin 750 g/ha Dose of 750 g/ha of metribuzin was used to obtain estimates of the level of resistance to triazines. The sprayer was washed three times with water, acetone, water) after the change of herbicides or reducing the dose of any herbicide. After spraying, the plants were placed in a WRC greenhouse 16 under the following environmental conditions: temperature 26/18° (78/65° (F) day/night, 44/68% day/night relative humidity and photoperiod of 14 hours.

Assessment

Visual assessment using a scale from 0% (no lesions) to 100% (plant death) were made in 10 and 20 DAA DAA (days after application). The data were processed according to the Colby formula for determining synergism, i.e. the "observed" values compared to "expected". The results are shown in the following table 9

1. The way to suppress weeds that have developed resistance to triazine as a result of selection pressure on the population of weeds re-making triazines, including the introduction of the locus (locus) of these weeds combination mesotrione and triazine selected from the group consisting of atrazine, cyanazine, propazine, TERBUTHYLAZINE, triazine, Simazine and metribuzin, and mesotrione bring in a dose of from 20 to 210 g/ha, and the triazine bring in a dose of from 0.1 to 2 kg/ha

2. The method according to claim 1, characterized in that the said triazine selected from the group consisting of atrazine, metribuzin and terbutylazine.

3. The method according to claim 2, characterized in that the said triazine is a atrazine.



 

Same patents:

FIELD: organic chemistry, herbicides.

SUBSTANCE: invention relates to a compound of the general formula [I]: wherein R1 and R2 can be similar or different and each represents (C1-C10)-alkyl group; each among R3 and R4 represents hydrogen atom; R5 and R6 can be similar or different and each represents hydrogen atom or (C1-C10)-alkyl group; Y represents 5-6-membered aromatic heterocyclic group or condensed aromatic heterocyclic group comprising one or some heteroatoms chosen from nitrogen atom, oxygen atom and sulfur atom wherein heterocyclic group can be substituted with 0-6 of similar or different groups chosen from the following group of substitutes α, and so on; n means whole values from 0 to 2; [Group of substitutes α]: hydroxyl group, halogen atoms, (C1-C10)-alkyl groups, (C1-C10)-alkyl groups wherein each group is monosubstituted with group chosen from the following group of substitutes β, (C1-C4)-halogenalkyl groups, (C3-C8)-cycloalkyl groups, (C1-C10)-alkoxy-groups, (C1-C10)-alkoxy-groups wherein each group is monosubstituted with group chosen from the following group of substitutes and so on; [Group of substitutes β]: hydroxyl group, (C3-C8)-cycloalkyl groups that can be substituted with halogen atom or alkyl group, (C1-C10)-alkoxy-group, (C1-C10)-alkylthio-groups, (C1-C10)-alkylsulfonyl groups, (C1-C10)-alkoxycarbonyl groups, amino-group, carbamoyl group (wherein its nitrogen atom can be substituted with similar or different (C1-C10)-alkyl groups), (C1-C6)-acyl groups, (C1-C10)-alkoxyimino-groups, cyano-group, optionally substituted phenyl group; [Group of substitutes γ]: optionally substituted phenyl group, optionally substituted aromatic heterocyclic groups, cyano-group. Also, invention relates to herbicide comprising derivative of isoxazoline of the formula [I] as an active component or its pharmaceutically acceptable salt. Invention provides the development of isoxazoline derivative possessing the herbicide activity with respect to resistant weeds, selectivity for cultural crop and weed.

EFFECT: valuable herbicide properties of substances.

18 cl, 24 tbl, 106 ex

FIELD: agriculture, in particular method for increasing of beet yield and sugar content.

SUBSTANCE: seeds are treated by spraying in leaf clamping step with titanium tetrachloride diluted in dimethylsulfoxide (DMSO). Concentration of DMSO is 0.1-2 %; titanium tetrachloride consumption is up to 50 g per 1 hectare of seeds. Ratio of titanium tetrachloride:dimethylsulfoxide is 100-200 l per 1 hectare. Treatment is carried out twice in vegetation period, namely the first treatment is carried out in leaf clamping step and the second one in 15-20 days before harvesting of root crops.

EFFECT: increased beet yield and sugar content.

1 tbl, 1 ex

FIELD: agriculture, organic chemistry.

SUBSTANCE: invention relates to agent for controlling of plant pathogen fungi containing compound of general formula I as active ingredient, wherein X represents =N-; E represents NO2 or CN; R representsthiazolulmethyl or pyridylmethyl substituted with halogen; A represents hydrogen; Z represents C1-C4-alkylamino group; or A and Z together with atoms bonded thereon form thiazolidine, imidazolidine, hexahydro-1,3,5-triazine, N2- and N5-substituted with two C1-C4-alkyl in alkyl group, 6-membered saturated heterocycle fragment including additionally oxygen and N-(C1-C4)alkyl heterogroup; and fungicide compound selected from group containing cyproconazole, triadimenol, methalaxide, azoxistrobin, kresoximmethyl, etc., in weight ratio compound of formula I/fungicidal agent of 1:(0.1-10). Also disclosed is insecticide agent containing compound of formula I and compound selected from group containing cyproconazole, azoxistrobin, kresoximmethyl, biterthanol, tiram, methalaxide, etc. in ratio of 1:(0.1-10).

EFFECT: enhanced assortment of agents for controlling of plant pathogen fungi and agents for insect controlling.

4 cl, 15 tbl, 15 ex

FIELD: agriculture, organic chemistry.

SUBSTANCE: invention relates to agent for controlling of plant pathogen fungi containing compound of general formula I as active ingredient, wherein X represents =N-; E represents NO2 or CN; R representsthiazolulmethyl or pyridylmethyl substituted with halogen; A represents hydrogen; Z represents C1-C4-alkylamino group; or A and Z together with atoms bonded thereon form thiazolidine, imidazolidine, hexahydro-1,3,5-triazine, N2- and N5-substituted with two C1-C4-alkyl in alkyl group, 6-membered saturated heterocycle fragment including additionally oxygen and N-(C1-C4)alkyl heterogroup; and fungicide compound selected from group containing cyproconazole, triadimenol, methalaxide, azoxistrobin, kresoximmethyl, etc., in weight ratio compound of formula I/fungicidal agent of 1:(0.1-10). Also disclosed is insecticide agent containing compound of formula I and compound selected from group containing cyproconazole, azoxistrobin, kresoximmethyl, biterthanol, tiram, methalaxide, etc. in ratio of 1:(0.1-10).

EFFECT: enhanced assortment of agents for controlling of plant pathogen fungi and agents for insect controlling.

4 cl, 15 tbl, 15 ex

FIELD: agricultural chemistry.

SUBSTANCE: invention relates to herbicidal composition containing (A) mesotrion and (B) the second herbicide selected from amicarbazone, metribuzine, flumetsulfam, trifloxysulfuron, pyriphthalide, prosulfocarb or herbicidically active salts thereof in (A):(B) ratio from 32:1 to 1:3. Disclosed is method for controlling of undesired plants which includes application of herbicidically effective amount of said composition into locus with such plants.

EFFECT: composition of high herbicidal activity.

8 cl, 6 tbl

FIELD: method for controlling of arthropod pests.

SUBSTANCE: claimed method includes application in environments of pests of germinal calls thereof effective amount at least one vicinal diol of formula R(OH)2 selected from group containing diols, wherein R represents aliphatic hydrocarbon chain with the proviso that carbon atom in the chain adjacent to diol functional group is not substituted with ethyl and chain skeleton contains 8-20 carbon atoms. Composition for insecticidal and arachnicidal application containing abovementioned diol of formula R(OH)2 also is disclosed. Methods for controlling of sucking lice, flies, mites, cockroaches, and pests from group comprising Pediculus humanus, Dermatophagoides pteronyssinus, and Musca domestica.

EFFECT: death or non-vitality of pests after treatment.

26 cl, 4 tbl, 4 ex

FIELD: method for controlling of arthropod pests.

SUBSTANCE: claimed method includes application in environments of pests of germinal calls thereof effective amount at least one vicinal diol of formula R(OH)2 selected from group containing diols, wherein R represents aliphatic hydrocarbon chain with the proviso that carbon atom in the chain adjacent to diol functional group is not substituted with ethyl and chain skeleton contains 8-20 carbon atoms. Composition for insecticidal and arachnicidal application containing abovementioned diol of formula R(OH)2 also is disclosed. Methods for controlling of sucking lice, flies, mites, cockroaches, and pests from group comprising Pediculus humanus, Dermatophagoides pteronyssinus, and Musca domestica.

EFFECT: death or non-vitality of pests after treatment.

26 cl, 4 tbl, 4 ex

FIELD: organic chemistry, nematocides.

SUBSTANCE: invention relates to compounds of the formula (I): wherein Ar1 and Ar2 mean independently of one another unsubstituted phenyl or mono- or multi-substituted phenyl with substitutes having independent of one another values and chosen from the group including halogen atom, (C1-C6)-alkyl or halo-(C1-C6)-alkyl; Q1 means -OCH2 or -C(O); Q2 means a direct bond or -C(O); R3 means hydrogen atom; R4, R5 and R6 mean independently of one another hydrogen atom or (C1-C6)-alkyl; W means O or S atom; a means 1, 2, 3 or 4; b means 0; n means 0 or 1. Also, method proposes a method for synthesis of compound of the formula (I) and carriers and/or dispersers also. Also, invention proposes using compound of the formula (I) for control of nematodes. Invention provides preparing derivatives of benzamidoacetonitrile used in control of nematodes.

EFFECT: improved preparing method, valuable properties of compounds.

10 cl, 2 tbl, 19 ex

FIELD: agriculture, herbicides.

SUBSTANCE: invention relates to agent for reducing of toxic action of hormonal herbicidal 2,4-dichlorophenoxyacetic acid on sunflower sprouts. Claimed agent contains 2-(2-furil)-1,3-dioxolane of formula I .

EFFECT: herbicide with decreased toxic action on sunflower.

FIELD: agriculture.

SUBSTANCE: invention relates to preparations obtained by pharmacopoeia method from overground and underground parts of calamus (Acorus calamus L.) for controlling of freshwater mollusk.

EFFECT: enhanced assortment of effective agents for controlling of freshwater mollusk.

6 ex

FIELD: agriculture, organic chemistry.

SUBSTANCE: invention relates to agent for controlling of plant pathogen fungi containing compound of general formula I as active ingredient, wherein X represents =N-; E represents NO2 or CN; R representsthiazolulmethyl or pyridylmethyl substituted with halogen; A represents hydrogen; Z represents C1-C4-alkylamino group; or A and Z together with atoms bonded thereon form thiazolidine, imidazolidine, hexahydro-1,3,5-triazine, N2- and N5-substituted with two C1-C4-alkyl in alkyl group, 6-membered saturated heterocycle fragment including additionally oxygen and N-(C1-C4)alkyl heterogroup; and fungicide compound selected from group containing cyproconazole, triadimenol, methalaxide, azoxistrobin, kresoximmethyl, etc., in weight ratio compound of formula I/fungicidal agent of 1:(0.1-10). Also disclosed is insecticide agent containing compound of formula I and compound selected from group containing cyproconazole, azoxistrobin, kresoximmethyl, biterthanol, tiram, methalaxide, etc. in ratio of 1:(0.1-10).

EFFECT: enhanced assortment of agents for controlling of plant pathogen fungi and agents for insect controlling.

4 cl, 15 tbl, 15 ex

FIELD: agricultural chemistry.

SUBSTANCE: invention relates to herbicidal composition containing (A) mesotrion and (B) the second herbicide selected from amicarbazone, metribuzine, flumetsulfam, trifloxysulfuron, pyriphthalide, prosulfocarb or herbicidically active salts thereof in (A):(B) ratio from 32:1 to 1:3. Disclosed is method for controlling of undesired plants which includes application of herbicidically effective amount of said composition into locus with such plants.

EFFECT: composition of high herbicidal activity.

8 cl, 6 tbl

FIELD: organic chemistry, herbicides.

SUBSTANCE: invention describes a synergetic composition with the effective content of components (A) and (B) wherein (A) means herbicide chosen from the group of compounds of the formula (I): wherein R1, R2, R, X, Y and Z have values given in the invention claim or their salts; (B) means one or some herbicides among the following groups: (B1) selective herbicides with activity in some dicotyledonous cultures against monocotyledonous and dicotyledonous weeds; (B2) selective herbicides with activity in some dicotyledonous cultures against dicotyledonous weeds; (B3) selective herbicides with activity in some dicotyledonous cultures with preferable effect against monocotyledonous weeds. Also, invention describes a method for control against weeds using the proposed composition. Using the combination of proposed herbicides results to the synergetic effect.

EFFECT: valuable herbicide properties of composition.

3 cl, 7 tbl, 2 ex

FIELD: organic chemistry, agriculture.

SUBSTANCE: invention relates to selective herbicidal compositions, containing customary auxiliary substances, as well as: a) herbicidal effective amount of compound of formula I or agriculture acceptable salt thereof wherein R are independently C1-C6-alkyl, C1-C6-haloalkyl, C1-C4-alcoxy-C1-C4-alkyl, or C1-C4-alcoxy-C1-C4-alcoxy-C1-C4-alkyl; m = 2; Q is group of formula wherein R23 is hydroxyl and Y is C1-C4-alkylen bridge; and b) synergetically effective amount of one or more herbicides; and methods for controlling of undesired plants in tame cultures using the said composition. Also disclosed is composition containing customary auxiliary substances, as well as herbicidal and synergetically effective amount of 4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)bicyclo[3.2.1]octo-3-ene-2-one of formula 2.2 and herbicidal antagonistically effective amount of antidote of formula 3.1. Compositions based on 4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)bicyclo[3.2.1]octo-3-ene-2-one and herbicidal antagonistically effective amount of antidote, as well as methods for controlling of weeds and cereal grasses in tame cultures also are described.

EFFECT: compositions useful in effective controlling of many weeds both in pre-spring and post-spring phases.

5 cl, 63 tbl, 12 ex

FIELD: organic chemistry, agriculture.

SUBSTANCE: invention relates to selective herbicidal compositions, containing customary auxiliary substances, as well as: a) herbicidal effective amount of compound of formula I or agriculture acceptable salt thereof wherein R are independently C1-C6-alkyl, C1-C6-haloalkyl, C1-C4-alcoxy-C1-C4-alkyl, or C1-C4-alcoxy-C1-C4-alcoxy-C1-C4-alkyl; m = 2; Q is group of formula wherein R23 is hydroxyl and Y is C1-C4-alkylen bridge; and b) synergetically effective amount of one or more herbicides; and methods for controlling of undesired plants in tame cultures using the said composition. Also disclosed is composition containing customary auxiliary substances, as well as herbicidal and synergetically effective amount of 4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)bicyclo[3.2.1]octo-3-ene-2-one of formula 2.2 and herbicidal antagonistically effective amount of antidote of formula 3.1. Compositions based on 4-hydroxy-3-(2-methyl-6-trifluoromethylpyridine-3-carbonyl)bicyclo[3.2.1]octo-3-ene-2-one and herbicidal antagonistically effective amount of antidote, as well as methods for controlling of weeds and cereal grasses in tame cultures also are described.

EFFECT: compositions useful in effective controlling of many weeds both in pre-spring and post-spring phases.

5 cl, 63 tbl, 12 ex

FIELD: organic chemistry, agriculture and veterinary.

SUBSTANCE: invention relates to triazine derivatives of formula I

wherein R1 is thienyl substituted with phenyl substituted with C1-C6-haloalkyl or C1-C6-haloalkoxy; or phenyl optionally substituted with one or two halogen, C1-C6-alkyl, C1-C6-haloalkoxy, substituted C2-C6-alkenyl, etc; or unsubstituted or monosubstituted phenoxy, wherein substituent is selected from group containing halogen, C1-C6-alkyl, C1-C6-haloalkyl or C1-C6-haloalkoxy; R2 is hydrogen or optionally substituted C1-C6-alkyl, wherein substituent is selected from group containing NO2 and C1-C6-alkylthio; A is direct bond; R5 is C1-C6-alkyl; R6 is hydrogen, C1-C6-alkyl or -C(=O)-R5; X1 is halogen and C1-C6-alkyl; X2 and X3 independently hydrogen, halogen and C1-C6-alkyl; with the proviso, that radical A-R1 and phenyl group are not in vicinal position relatively to one another in triazine ring; X1 is not Cl or F when X2 and X3 are hydrogen and R1 is phenyl, 2-fluorophenyl, p-fluorophenyl or 3-chlorophenyl. Also disclosed are composition containing compound of formula I as active ingredient and method for controlling of pests and ticks. Said method includes treating of pests and ticks or occupation places thereof with compound of formula I.

EFFECT: compounds and compositions with high controlling activity in regard to parasites on plants and warm-blooded animals.

5 cl, 9 tbl, 9 ex

FIELD: agriculture, in particular method for controlling of weeds.

SUBSTANCE: claimed method for controlling of weeds in tolerant maize cultures includes application of composition comprising (A) road spectrum herbicide from group (A1) glufosinate (salt) and analogs, (A2) glyfosate (salt) and analogs; (B) one or more herbicides from group (B1) cyanazin, alachlor, nicosulfurone, rimsulfurone, sulkotrion, mesotrion, and penthoxamid; (B2) pendimethalyne, methosulam, isoxaflutol, metribuzin, chloransulam, flumetsulam, linuron, florasulam, and isoxachlorotol; and (B3) bromoxinyl, chlorpyralid, tifensulfuron, MCPA (2-methyl-4-chlorophenoxyacetic acid), halosulfuron, and sulfosulfuron, wherein (A) and (B) components are in synergic effective ration. Also disclosed are herbicidal compositions including compound from group (A1) or )F2) and herbicide from group (B).

EFFECT: effective controlling of weeds in tolerant maize cultures.

6 cl, 55 tbl, 3 ex

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention describes substituted benzoylcyclohexanediones of the general formula (I):

wherein m = 0 or 1; n = 0 or 1; A means a single bond or alkanediyl (alkylene) with 1-4 carbon atoms; R1 means hydrogen atom or unsubstituted alkyl with from 1 to 6 carbon atoms; R2 means methyl; R3 means hydrogen atom, nitro-, cyano-group, halogen atom, alkyl with from 1 to 4 carbon atoms substituted with halogen atom, alkoxy-group with from 1 to 4 carbon atoms or alkyl sulfonyl with from 1 to 4 carbon atoms; R4 means nitro-group, halogen atom, unsubstituted alkyl with from 1 to 4 carbon atoms of that substituted with halogen atom; Z means heterocycle, and herbicide agent based on thereof. Also, invention describes substituted derivatives of benzoic acid of the general formula (III):

wherein values n, A, R3, R4 and Z are given above. These compounds represent the parent substances used for preparing compound of the formula (I). Compounds of the formula (I) elicit high and selective herbicide activity.

EFFECT: valuable properties of compounds.

7 cl, 8 tbl, 7 ex

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention describes a synergistic composition of herbicides comprising components (A) and (B) wherein (A) represents herbicide taken among the group of the formula (I):

wherein R1 means (C1-C4)-alkyl; R2 means (C1-C4)-alkyl; R3 means hydrogen atom; X and Y mean (C1-C4)-alkoxy-group; (B) represents one or two herbicides taken among the group of compounds or their acceptable forms: alachlor, metolachlor, acetochlor, dimetenamide, atrazine, cyanasin, metribusin, fluthiamide, nicosulfuron, rimsulfuron, primisulfuron, pendimetalin, sulcotrion, dicamba, mesotrion, isoxachlortol, metosulam, anilofos, fenoxaprop-ethyl, setoxydim, diclofop-methyl, MCPA, bromoxynil, pyridat, clopyralid, iodosulfuron-methyl, ethoxysulfuron, amidosulfuron, gluphosinat-amminium, isopropylammonium-glyphosate, imasetapir wherein components (A) and (B) are taken in the effective doses. Also, invention describes a method for control of weeds by using above indicated herbicide composition. Invention provides the development of the synergistic herbicide composition eliciting high activity.

EFFECT: improved method for control, valuable properties of composition.

6 cl, 26 tbl, 3 ex

FIELD: organic chemistry, herbicides, agriculture.

SUBSTANCE: invention describes a synergistic composition of herbicides comprising components (A) and (B) wherein (A) represents herbicide taken among the group of the formula (I):

wherein R1 means (C1-C4)-alkyl; R2 means (C1-C4)-alkyl; R3 means hydrogen atom; X and Y mean (C1-C4)-alkoxy-group; (B) represents one or two herbicides taken among the group of compounds or their acceptable forms: alachlor, metolachlor, acetochlor, dimetenamide, atrazine, cyanasin, metribusin, fluthiamide, nicosulfuron, rimsulfuron, primisulfuron, pendimetalin, sulcotrion, dicamba, mesotrion, isoxachlortol, metosulam, anilofos, fenoxaprop-ethyl, setoxydim, diclofop-methyl, MCPA, bromoxynil, pyridat, clopyralid, iodosulfuron-methyl, ethoxysulfuron, amidosulfuron, gluphosinat-amminium, isopropylammonium-glyphosate, imasetapir wherein components (A) and (B) are taken in the effective doses. Also, invention describes a method for control of weeds by using above indicated herbicide composition. Invention provides the development of the synergistic herbicide composition eliciting high activity.

EFFECT: improved method for control, valuable properties of composition.

6 cl, 26 tbl, 3 ex

FIELD: agriculture, in particular method for increasing of beet yield and sugar content.

SUBSTANCE: seeds are treated by spraying in leaf clamping step with titanium tetrachloride diluted in dimethylsulfoxide (DMSO). Concentration of DMSO is 0.1-2 %; titanium tetrachloride consumption is up to 50 g per 1 hectare of seeds. Ratio of titanium tetrachloride:dimethylsulfoxide is 100-200 l per 1 hectare. Treatment is carried out twice in vegetation period, namely the first treatment is carried out in leaf clamping step and the second one in 15-20 days before harvesting of root crops.

EFFECT: increased beet yield and sugar content.

1 tbl, 1 ex

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