Herbicide composition

 

(57) Abstract:

Describes herbicide composition based on an aqueous solution Isopropylamine salt of N-phosphonomethylglycine and as surface-active substances it contains mixed emulsifier Geronol CF/AR, in the following ratio, wt.%: Isopropylamine salt of N-phosphonomethylglycine 41-43, emulsifier 9,4-11,0, water up to 100%. The resulting preparation is as efficient as Roundup, and indicators of toxicity and domesticate surpasses it. 10 table.

The invention relates to herbicide compositions, more precisely to the aqueous herbicide compositions containing as active substance Isopropylamine salt of N-phosphonomethylglycine and surfactant. N-phosphonomethylglycine, known under the common name glyphosate, a very effective non-selective herbicide, introduced in the market by the company Monsanto (USA) in 1974, the Drug acts on woody and herbaceous aquatic plants at different stages of development and is widely used as post-harvest herbicide. Glyphosate shows high activity when used in aqueous alkaline solutions, ammonia, trimethylsulfonium the surface-active substances and other additives, for example, antifreeze, antispyware, adhesives and other Most widely in commercial preparations used an aqueous solution monoisopropylamine salt of N-phosphonomethylglycine, for efficiency, which is added to the surfactant.

As surfactants in aqueous solutions monoisopropylamine salt of N-phosphonomethylglycine can be used substances of different classes of ionic, nonionic, and others, but there is no doubt that in some cases, efficiency is improved and more beneficial effects, while others manifest incompatibility and even antagonism (Weed Science, Vol. 25, 1977, S. 275-288).

The most widely used commercially composition based Isopropylamine salt of N-phosphonomethylglycine with ethoxylated fatty amines (W0 94/02021).

In the international application WO 92/11764 indicated that the preferred surfactants for salts of N-phosphonomethylglycine is ethoxylated tall Amien with the degree of amoxilonline from 15 to 18, and a mixture of such substances. One of these surfactants is the brand name of Entry II (Monsanto). Another such substance MON 0818 included in the commercial product roundup, which the firm Monção the CSOs amine (693-734 g/l), 21-29,5 wt.% antifreeze, comprising 6% of ethylene glycol and 3.5-4% water (brand materials Monsanto Safety Data Sheet from 30.01.01). The roundup has the following composition, wt.%:

Isopropylamine salt of glyphosate - 41

MON 0818 - 8

Water - 51

Along with high efficiency and certain commercial advantages over many other herbicides roundup has some disadvantages, among which may be noted the low degree of penetration of the drug into the plants from the surface of the sheet. Therefore, the product can be easily washed away by rain, if he goes after 1-2 h after treatment plants, which will result in a reduction or complete loss of herbicide activity.

In addition, roundup has irritating effects on eyes and skin, and also has the potential to be toxic to beneficial aquatic organisms: MON 0818 has LC50for aquatic animals of 6.5 mg/l, which is the limit of toxicity for SAS (Rev/ Environ. Contam. Toxicol. 167:35-120. Springer-Verlag 2000).

To address these shortcomings directed a large number of studies, the emergence of numerous publications, including patent, which reported partial or complete solution of the problem through the application of new surfactants and d ' any characteristics of the drug.

In the European patent EP 0274369 B1 proposed formulation, including Isopropylamine salt of N-phosphonomethylglycine, sulfate, ammonium and Quaternary ammonium salts containing a long alkyl or polyoxyethylene residues, for example, alkyl-three(polyoxyethylene)ammonium phosphate. The composition is stable at low temperatures (below 0oC) and shows good performance when tested on some plants.

In the European application EP 0357553 A2 described herbicide composition in the form of a liquid suspension containing the IPA salt of glyphosate, triazine herbicide and a mixture of anionic and cationic surfactants. Among the anionic surfactants mentioned connection

< / BR>
A+prototype, alkali metal or triethanolammonium-cation.

R8represents a

< / BR>
S=1-4, t=2-40, R10=hydrogen, styryl or3-C10alkyl.

R9what R8or hydrogen

In the European application EP 0526443 A1 describes herbicide composition based on N-phosphonomethylglycine containing as a surfactant alkylpolyglycoside, and as a non-symmetrically substituted acetylene diols.

In the European patent EP 0526444 B1 as a surfactant for the aqueous salt solution N-fosnova group

R1and R is alkyl or alkanol with 1 to 3 atoms WITH

R3- alkyl, C1-C3< / BR>
and glycol - propylene glycol or polypropyleneglycol with M. C. >1000. The composition does not irritate eyes and skin.

In the European patent EP 0650326 describes stable aqueous composition comprising a salt of N-phosphonomethylglycine and surfactants having the formula

< / BR>
R is alkyl of 6 to 20 C atoms

R' is ethyl, propyl

n m=20-40 and the sum of n+m=5-50

R2- alkyl, C1-C4< / BR>
X-- Cl-or phosphate

ETHOQAD/25 (Akzo Chemical Inc.)

Without adding glycol is equal to the effect of Roundup, less irritating and less toxic to the fish.

In the International application W0 96/00010 described effective dodeactivate herbicide composition on the basis of salts of N-phosphonomethylglycine containing a complex mixture of surfactants, including alkylpolyglycoside, ethoxylated alcohols, and cationic or nonionic surfactants, consisting of amine, ammonium or aminosidine group. Examples confirming the properties of the composition, in the description are missing.

In the International application W0 97/47199 described herbicide composition based on water-soluble salt of N-phosphonomethylglycine and adjuvant surfactant, representing particularly the Il

R3- polyhydroxyalkanoates radical

R4- C6-C22hydrocarbon radical

R5- O(AO)nR6where AO accelerated

n=1-200

One example: tetradecylthioacetic polietilenglikolja (PEG-600) ester of succinic acid +30% monopropellants. The composition is effective against trudnoiskorenyaemyh weeds.

In the International application W0 98/15181 described mulapannasaka composition based on water-soluble salts of N-phosphonomethylglycine and a mixture of surfactants, including Alkylglucoside and Quaternary ammonium salts.

In the International application W0 98/35561 presents herbicide composition based on water-soluble salts of N-phosphonomethylglycine and a mixture of surfactants, including polyoxyethylenesorbitan and glycols or glycol ethers. Recommended for the destruction of trees and shrubs.

The object of the present invention is a herbicide composition comprising an aqueous solution of N-phosphonomethylglycine and mixed emulsifier Geronol CF/AR (company Rhodia Geronazzo), which is Isopropylamine salt mixture polioksidony of alkylphosphates formula

< / BR>
R-C4-C10alkyl

n=2-10

The records of the company Rhodia this is the name, although it does not fully conform to the formula above (See. information Rhone-Poulenc Geronazzo Spa Surfactants and Specialitis for Plant Protection"). The closest analogue of this compound is disperser Soprophor (Rhone Poulenk), representing triethanolammonium salt christianfreenokiaringtones with the number ethyleneoxide groups, equal to 16-20 (see WO 98/00009, RF patent 2093986 RF patent 2167522, see also the above-cited application EP 0357553 A2).

The attempt to apply Soprophor for glyphosate did not succeed.

Use Isopropylamine salt alkalitolerant allowed to obtain the drug, is equal in effectiveness to the Roundup, and indicators of toxicity and domesticate surpasses it. The applicant claimed that the drug Tornado. /Application for registration as a trademark./

Study of toxicity in laboratory animals conducted at the research Institute of occupational medicine RAMS.

In experiments on laboratory animals established the basic parameters of toxicity when administered into the stomach of mice and rats, when applied to the skin of rabbits.

It is shown that the drug has no skin-resorptive properties. Irritant effect on the skin is not expressed (not annoying in acute experiments and lyrics by the nd concentration (1%) not shown. Most indicators (LD50when introduced into the stomach of mice and rats, LD50acute skin for rabbits, sensitizing properties, inhalation toxicity) drug Tornado belongs to the 4th class of danger according to the hygienic classification of pesticides.

Table 1 presents comparative data on the toxicology of drugs Tornado and roundup.

Table 2 shows comparative Toxicological characteristics of surfactant preparations Tornado and roundup.

This is followed by examples illustrating the invention.

Example 1. Getting drug Tornado. Options 1-9.

1. To 580 g of tap water is added 110 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture is gradually added 480 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

2. To 580 g of tap water add 120 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture is gradually added 480 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

3. To 580 g of tap water add 130 Gaut 480 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

4. To 564 g of tap water is added 110 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture, gradually add 486 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

5. To 564 g of tap water add 120 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture, gradually add 486 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

6. To 564 g of tap water is added 130 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture, gradually add 486 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

7. To 536 g of tap water is added 110 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture, gradually add 504 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

8. To 536 g of tap water add 120 g of amine salts alkalitolerant, mix until dissolved. To the resulting smacznego solution.

9. To 536 g of tap water is added 130 g of amine salts alkalitolerant, mix until dissolved. To the resulting mixture, gradually add 504 g Isopropylamine salt of N-(phosphonomethyl) glycine and stirred until a homogeneous solution.

Example 2. Getting drug Tornado. Options 10-18. The results are presented in tables 3,4,5.

10. To 250 g of tap water is added 110 g of amine salts alkalitolerant, 356 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (152 g) with constant stirring until complete (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

11. To 250 g of tap water add 120 g of amine salts alkalitolerant, 356 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (152 g) with constant stirring until complete (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

12. To 250 g of tap water is added 130 g of amine salts alkalitolerant, 356 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (152 g) with constant stirring until complete (pH of the solution is water added 110 g of amine salts alkalitolerant, 360 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (153,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

14. To 250 g of tap water add 120 g of amine salts alkalitolerant, 360 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (153,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

15. To 250 g of tap water is added 130 g of amine salts alkalitolerant, 360 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (153,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

16. To 250 g of tap water is added 110 g of amine salts alkalitolerant, 374 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (159,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, permasteel) glycine, then gradually add monoisopropylamine (159,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

18. To 250 g of tap water is added 130 g of amine salts alkalitolerant, 374 g of N-(phosphonomethyl) glycine, then gradually add monoisopropylamine (159,5 g) with constant stirring until complete dissolution (pH of 4.4 to 4.9). To the resulting mixture add tap water to a total volume of 1 l, and mix.

Example 3. The study of the stability of the drug during storage at low temperatures.

Evaluation of stability during storage was performed according to the method CIPAC MT 46, and at low temperatures by the method CIPAC MT 39.

The results are presented in table 6.

As follows from the table that both drugs are equally resistant to cooling, however, the MOS 0818 (unlike Isopropylamine salt alkalitolerant) includes antifreeze (21-29,5%), including 6% of ethylene glycol.

Ethylene glycol is toxic to animals by inhalation of vapors and contact with it inside of the body oral route (causes defects of the kidneys, which can be inherited).

Mon 0818 fuel, when burned, it emits toxic substances, Isopropylamine salt alkalitolerant - non-combustible.

Example 4. The study of the herbicide activity of the drug Tornado.

The test plants were grown in waxed paper cups with a diameter of 600 cm3filled with a mixture of sod-podzolic soil, sand and peat (1: 1: 1). When growing test plants in the chamber maintained controlled mode:

light 20 thousand Lux for 16 h, without illumination 16 h per day,

- air temperature 20oWith the night, 25oWith the day,

- humidity 70%,

- irrigation at 60% of the PV.

After careful selection of plant height and growth stage in each vessel was left certain the same number of plants: wheat 6 plants, mustard and beet 2 plants. Processing monocotyledonous plants was performed in the phase of onset of the third sheet, the two first pair of true leaves.

Herbicides were applied in 5 various doses, reducing the weight of the ground mass of test plants from 10 to 90%. The repetition of the pattern by the difference between wet weight ground parts of plants. The results are presented in table 7 and 8.

Data of the experiment show that the drug Tornado works at the level of "roundup" (F. Monsanto), but the wheat there is a slight tendency to increase in Tornado activity.

Example 5. The study of domesticity drug Tornado.

The experiment was carried out in the laboratory of artificial climate. Studied the penetration rate in plants cocklebur active ingredient of the herbicide Tornado and Roundup in the first 4 h after treatment of plants. As shown by the results of studies on the toxicity to the test plants cocklebur Tornado and roundup are on the same level (U50respectively equal to 0.13 and 0.15 l/ha). However, the penetration speed (domesticate) Tornado a few exceeded the roundup. This is especially noticeable evident in the first two period of 30 min and 1 h

In subsequent periods, these differences in the speed of penetration into plants cocklebur active ingredient herbicides Tornado and Roundup nevalida. Both drugs are almost completely penetrate the plant cocklebur for 4 h the Results are presented in tables 9 and 10.

Herbicide composition comprising aq is as surface-active substances it contains mixed emulsifier Geronol CF/AR, representing isopropylammonium salt mixture polyoxyethylenic of alkylphosphates formula

< / BR>
where R is C4-C10alkyl;

n= 2-10,

in the following ratio, wt. %:

Isopropylamine salt of N-phosphonomethylglycine - 41-43

Emulsifier - 9,4-11,0

Water To 100%

 

Same patents:

The invention relates to the field of agricultural chemistry, more specifically to a method of increasing the yield of cultivated plants

The invention relates to a method of controlling undesirable growth of plants, using a joint application, in the future, co-deposition, dimethenamid and at least one herbicide, herbicide compositions, including dimethenamid and at least one herbicide, and the use of such compositions for the destruction of unwanted vegetation growth

The invention relates to agriculture and medical disinfection and can be used as a means for combating harmful insects

The invention relates to agriculture, and in particular to methods of regulating the growth of potato plants with chemical compounds

The invention relates to the production of insecticides, namely, to obtain granulated chlorophos

The invention relates to agriculture, in particular to insecticidal for pest management of fruit crops

The invention relates to microemulsions, capable of destroying insects without the use of traditional insecticides

The invention relates to (adjuvant) improving the efficiency of application of herbicides on the basis of the sulfonylureas

The invention relates to chemical agents for controlling undesirable vegetation in crops of cultivated crops, in particular in crops of sugar beet

The invention relates to agriculture and can be used to fight against dicotyledonous weeds in cereal crops

The invention relates to microcapsules, which contain a solid biologically active compound suspended in the fluid, and methods for their preparation and to the use of such microcapsules

FIELD: agricultural engineering.

SUBSTANCE: composition has dialene, mixture of potassium and sodium dimethylammonium salts of MCPA (agritox) and surfactant agent of trend in mass proportion of ingredients equal to 2.06:1, respectively. Method for eliminating weeds or undesired plants involves applying tank mixture of dialene at a dose of 1.75 kg/hectare and agritox at a dose of 0.85 kg/hectare. Surfactant agent of trend is added to the mixture in the amount of 200 ml/hectare with normal working liquid expenditure being equal to 200 l/hectare in cereals and lawn grass crops.

EFFECT: wide range of herbicide action spectrum.

3 cl, 2 tbl

Up!