Biochemical method for determining the effective fertility of soddy-podzolic soils

 

The invention relates to agriculture, agricultural chemistry, soil biology, Agroecology, and can be used to determine the level of effective fertility sod-podzolic soils. The method includes the composting of the sample of the soil, which should be performed within 7-8 days at a temperature of 34-36With, and then determine mineral and mobilized from soil organic matter nitrogen by boiling the sample taken from a validated sample of soil, not less than 10 grams by weight and the ratio to water of 1:5 for 20 minutes to sandy, sandy loam and medium loamy soils and 30 minutes for loam soils. Then make the determination of the number of extracted nitrogen in the apparatus of kildala in the mild alkaline hydrolysis with the addition of alloy Devarda. Get reasonably available nitrogen in arable horizon of the soil (NR. D.), will determine the actual digestibility of its culture by standard factors. Then determine the yield on the amount of nitrogen required to produce 1 kg/ha of marketable products by the formula

whereto- crop yields, t/ha; C - reasonably available is Oh really available soil nitrogen, then judge about the level of soil fertility: when 8-12 t/ha of grain - low fertility, 13-20 kg/ha of grain - the average level of fertility, 21-45 kg/ha of grain - high level of fertility, with more than 45 kg/ha of grain is a very high level of fertility. The invention reduces the number of operations, reagents, materials and the possibility of direct determination of reserves actually available nitrogen to plants. 11 table.

The invention relates to the field of agriculture, agricultural chemistry, soil science, soil biology, Agroecology, chemical analysis of soils and can be applied in agriculture.

The invention can be used to assess the level of effective fertility soddy-podzolic soils, forecasting crop yields, to assess the anthropogenic impact on the content and dynamics of reasonably available nitrogen in sod-podzolic soils.

The effective level of soil fertility is defined in different ways.

Known methods of determining the level of effective fertility soddy-podzolic soils, based on the definition of a complex of different indicators: total carbon, mobile phosphorus, potassium and soil pH [1, 2]. The known methods have a low Technoline determine plant available nitrogen, produced from soil organic matter. However, it is known that in sod-podzolic soils nitrogen was and remains a limiting element, and its gradual accumulation is a crucial factor in the development of soil fertility” [3]. The content of total carbon, mobile phosphorus and potassium in arable soils is often the result of anthropogenic impact intensity of resource investments and technological influences. However, the main indicator of the effective fertility of soddy-podzolic soils is the amount of plant available nitrogen, produced by the soil annually from coming in her vegetable organic matter. This parameter is called “the productive power of the soil [4].

Known methods of assessment of soil fertility by way of humus balance [5, 6]. Humus balance amount by comparing the annual input of organic matter in the soil and loss of her humus in the cultivation of agricultural crops. Along with data about the dynamics of humus in the balance sheet include the accounts of receipt and expenditure of nitrogen, phosphorus and potassium. Lykov, A. M. [6] the balance of humus was calculated on the basis of nitrogen balance. We used numerous data on the content of the, the coefficients of humification of plant residues and organic fertilizers, removal of nitrogen with crop nitrogen in organic fertilizers and utilization, the dose of mineral nitrogen and utilization, nitrogen content in root and stubble residues and utilization.

However, these known methods do not allow for quick, accessible and informative to make predictive assessment do not indicate the nearest reserve of organic compounds, which are released by mineralization plant available nitrogen.

The known method [7] determine the level of soil fertility by nitrogen content in leggerissimo organic matter (BWT), which includes residues, organic fertilizers and intermediate products of their decomposition (detritus). The determination of the content of CRYSTALS based on its separation from stable humus and mineral parts of the soil with heavy liquid density of 1.6-1.8 g/cm3and the determination of nitrogen in it. However, the known method is not sufficiently precise, it has a low sensitivity, limited in scope and are mainly used to calculate doses of organic fertilizers.

All of the above sposobite soils [8], based on a principle similar to that proposed, the definition of the nitrifying capacity of the soil on the amount of nitrates produced by the soil by mineralization of soil organic matter determined before and after the 12-day composting soil sample at a temperature of +28C and humidity 60% of full capacity. Nitrifying capacity of the soil is defined as the difference between the final and initial nitrate content punched in the soil.

The disadvantage of this method is the lack of accuracy, the duration of the analysis, the low information content as the original nitrate content is not included in the calculation mobilized nitrogen, the method considers only one nitrate form of nitrogen, does not account for ammonia nitrogen, does not represent the nearest reserve of organic compounds, salinity which is released available for plant nitrogen. Furthermore, the method also weakly correlated with removal of nitrogen by plants on sod-podzolic soils and crop yields. Prolonged incubation of soil in optimal conditions without alienating products mineralization (NR-3, NH+4) leads to the absorption of soil biota that considerable is reduced to 7-8 days instead of 12 by increasing the temperature up to 34-36Instead 28C, is determined not only by the accumulated soil nitrate nitrogen, but all of the mineral and capable of mineralization during the growing period of organic nitrogen, extractable in boiling water for 20 minutes to sandy, sandy loam and medium loamy soils and within 30 minutes for loam soils, and direct definition in the aliquot actually available nitrogen, the amounts of mineral and easy mineralizing organic nitrogen. Unlike the prototype of soil fertility are judged not by the accumulated nitrate, and the yield of grain crops, which is determined on the basis of the content actually available nitrogen in the soil.

The proposed method differs from others by improving accuracy, reducing the time of analysis, raising awareness of the way. The technical result is achieved by accelerating the process of mobilizing available for plant nitrogen by increasing the temperature during composting soil 28With up to 34-36C, which is optimal for the activity of soil microflora and work of hydrolytic enzymes engaged in the mineralization of organically is no time maximum operating time of soil biota and mineral capable of mineralization of organic nitrogen compounds prior to their mass uptake (immobilization) microorganisms. Is a full wipe in aqueous solution actually available for plant nitrogen by boiling the sample of soil in water for 20 minutes to sandy, sandy loam and medium loamy soils and within 30 minutes for soils of heavy texture, and direct measurement of the aliquot real plant available nitrogen in the apparatus of kildala with alloy Devarda translating in the alkaline environment of nitrate nitrogen in the ammonia.

Improving the accuracy of the method is carried out by increasing the temperature from 28With up to 34-36With, resulting in intensification of biochemical processes in the release of plant available forms of nitrogen from soil organic matter, including all mineral and capable of mineralization of organic nitrogen without mass is absorbed by the microorganisms and the direct determination of water extract really available nitrogen. Improving the accuracy of the method is confirmed by the data of table 1, which presents aggregate quantities actually available nitrogen, defined in the sixfold repetition in two sod-podzolic soils, the proposed method and the prototype. Processing carried out on Detrebled within 1,11-1,19%, the prototype is 6.9 - 7.4 per cent. Therefore, the error in the determination of reasonably available nitrogen in the proposed method 6-7 times smaller than the prototype. The relative probable error in the determination of reasonably available nitrogen prototype is 7-8 times more than the proposed method. This is because reasonably available nitrogen prototype is defined as the difference between the number of operation microflora of nitrates and their contents before composting. Is not considered the source of the nitrate content in the soil and other plant available forms of nitrogen: ammonia, amino acids, amino sugars, etc. So the absolute value of the actually available nitrogen prototype less 4-12 times than the proposed method. The proposed method reasonably available nitrogen is determined directly from the water extract of the soil as the sum of mineral and capable of mineralization during the growing period of the organic nitrogen after its mobilization microflora within 7-8 days at 34-36C.

The technical result of the proposed biochemical method for determining the effective fertility of soddy-podzolic soils is achieved by increasing the temperature up to 34-36

whereto- crop yields, t/ha;

NR. D.- reasonably available nitrogen in arable horizon of soil, kg/ha;

With the number of available nitrogen required to produce 1 kg of saleable product per 1 ha, kg/kg (reference material);

Top- utilization of culture soil nitrogen, and then judge about the level of soil fertility:

at 8-12 t/ha - low fertility;

when 13-20 kg/ha - average level of fertility;

when 21-45 kg/ha of grain - high level of fertility;

when >45 kg/ha of grain is a very high level of fertility.

Biochemical method for determining an effective fertility sod-pozoloti structure formation and the temperature of 34-36With the release of mineral and capable of rapid mineralization reasonably available organic nitrogen in the solution by 20-minute boiling hinge sandy, sandy, medium loamy soil and 30-minute boiling loam soil in water, the definition in the aliquot real plant available nitrogen in the mild alkaline hydrolysis with Cao in the apparatus of kildala with the addition of alloy Devarda, the calculation of the actual digestibility of its culture by standard coefficients and calculation of yield on the amount of nitrogen required to produce 1 kg/ha of marketable products.

The essence of the proposed method is illustrated with specific examples of implementation, are summarized in table 2, which presents the dynamics of mineral and legkogidrolizuemihkh organic compounds of nitrogen during composting of different soil mechanical composition at a temperature of +36C. it is Shown that the accumulation of mineral forms of nitrogen (N-NR-3N-NH+4) - end products mineralization of nitrogen-containing organic compounds, as well as legkorazmyvaemykh really accessible intermediates mineralization of amino sugars and amino acids occurs at 7-8 de the unity of nitrogen decreases, then increases at 12-13 days, but at a lower value compared with the content of nitrogen compounds on 7-8 day, and then decreases again on day 14.

Found that for soils of different texture accumulation time of the greatest number of mineral and legkorazmyvaemykh nitrogen compounds is 7-8 days.

Table 3 presents the content legkogidrolizuemihkh organic nitrogen compounds in the water extract depending on the time of boiling validated sample of soil. It is seen that amino acid and amino sugar is completely extracted sandy loam and medium loamy soils after 20 minutes of boiling, and loam soil after 30 minutes.

Table 4 presents the effect of temperature from 25With up to 38With the dynamics of nitrate nitrogen in the composting within 16 days of sod-podzolic sandy loam soil, mg/kg Shows that the greatest amount of nitrogen accumulated in the soil after 6 to 8 days at a temperature of 34-36C. When the temperature rises to 38With the observed reduction of nitrates in the soil.

Table 5 presents the impact of tempean within 16 days of sod-podzolic sandy loam soil, mg/kg Shows that for 6-8 day composting soil content of ammonium nitrogen, characterizing the process of ammonification, reached a maximum at a temperature of 34-36C.

Table 6 presents the effect of temperature from 25With up to 38With the dynamics of the nitrogen of amino sugars and composting within 16 days of sod-podzolic sandy loam soil, mg/kg Shows that the nitrogen content of amino sugars was changed at a temperature of 28°C from 9,25 to 12, 74 mg/kg, with a maximum of 6-8 hours. At a temperature of 36From 11,37 to 15,22 mg/kg, with a maximum of 6-8 day (17,90 mg/kg). Thus, the maximum amount of nitrogen of amino sugars, the nearest reserve of mineral nitrogen by mineralization, was accumulated in the soil for 6-8 days at a temperature of 34-36C.

Table 7 presents the effect of temperature from 25With up to 38With the dynamics of the nitrogen of amino acids, mg/kg Shows that the nitrogen content of amino acids at a temperature of +28With ranged from 31.8 to to 31,17 mg/kg of soil from the 2nd to 16th day of composting with a maximum 39,25 mg/kg for 6-8 9 to 35,85 mg/kg with a maximum 41,98 for 6-8 days. Further increase in temperature resulted in a decrease of the nitrogen content of amino acids, which could be due to either declining life of the mineralizing microflora, or amino acid uptake by heterotrophic microorganisms.

Presented in tables 4, 5, 6, 7 the relationship between the accumulation of mineral and affordable organic compounds of nitrogen and soil temperature shows that the maximum mobilization of mineral and easy mineralizing (really affordable) organic compounds occurs at a temperature of 34-36With due to the intensification not only microbial activity and soil hydrolytic enzymes responsible for this process. The optimum of their work, as it is known, is within 34-37[9]. In this regard, the lack of previous biochemical methods is the creation of optimum temperature only for microbiological activity (+28C), but not for soil enzymes carrying out the decomposition of organic compounds, and therefore the absolute values and the accuracy of these methods below.

According to the invention on the first EA 2 mm, air-dry after 1 mm

In the second stage, carry out the composting soil sample within 7-8 days at a relative humidity of structure formation (60% of full capacity) and a temperature of 34-36C. At this temperature, optimal not only for soil biota, but also for enzymatic hydrolysis, is the mobilization of plant available nitrogen-containing compounds from soil organic matter. Are formed as intermediate products of mineralization of amino sugar, amino acids, ammonium salts of organic acids, nitrogen, water-soluble humic and fulvic acids, amines, amides, and others (the period of mineralization in the soil most 1-2 weeks) and end - nitrates and ammonia without their mass absorption by soil microorganisms.

In the third stage release plant available mineral and capable of rapid mineralization of organic nitrogen boiling incubated sample of soil in water for 20 minutes to sandy, sandy loam and medium loamy soils and 30 minutes for loam soil from the beginning of the boil in flasks under reflux at a ratio of soil/water 1:5, filtered through ordinary filter.

In the fourth stage is placed 10-20 ml of the filtrate into distant to the g Cao to create a mild alkaline hydrolysis, then produce a distillate actually available nitrogen for 10 minutes in boric acid indicator Graeca. Octarepeat of 0.001 N. H2SO4the content is actually available nitrogen to plants.

Expect reasonably available nitrogen (NR. D.in mg/kg dry soil by the formula

where NR. D.- reasonably available nitrogen to plants, mg/kg;

a - amount of 0.001 N. H2SO4spent for titration of the working sample, ml;

b - quantity of 0.001 N. H2SO4spent for titration of the blank sample, ml;

N. - normality of H2SO4;

14 - weight of 1 mEq. nitrogen, mg;

V - volume N2O, pririty to the soil sample, ml;

V1- volume of aliquot taken for determination in distant flask apparatus of kildala, ml;

R - hanging moist soil, g;

1000 - conversion to 1 kg of soil, g;

K - coefficient of the terms of absolutely dry soil sample (relative value).

In the fifth stage expect the content actually available nitrogen in arable horizon of the soil in kg/ha by the formula

where NR. D.- the content is actually available nitrogen in the soil, kg/ha;

and - weight arable horizon of the soil, t/ha;

b - the content is actually available nitrogen in the soil, mg/kg;

1000 - hr/215.gif">S,

where P is the weight of the arable horizon, t/ha;

h - power arable horizon, m;

g - volumetric weight, t/m3;

S - 10000, 1 ha, m2.

For example, the volumetric weight=1.18 g/cm3the power source of the horizon - 20 see

P=0,21,1810000=2360 t/ha,

Determine the actual digestibility of plant available soil nitrogen (NR. D. W.) culture on standard coefficients [11]. The coefficients uptake of soil nitrogen by plants on sod-podzolic soils typically range from 20 to 40%. The calculation is made according to the formula

where NR. D. W.- the real number of available soil nitrogen, which can assimilate the culture, kg/ha;

NR. D.- the real number of available nitrogen in the soil, kg/ha;

Top- utilization of soil nitrogen by plants, %.

Expect crop yields depending on the content actually available soil nitrogen at 40% it is used by plants in kg/ha are used For this reference material [13] (or find data from field experience) about the amount of nitrogen required to produce 1 kg of commercial production on 1 hectare Calculation is made according to the formula

whereWith the number of actually available nitrogen required to produce 1 ton (t) of commodity production per 1 ha, kg/kg.

Summing formulas 1, 2, 3, it is possible to give a generalized formula for calculating the predicted yields

whereto- crop yields, t/ha;

NR. D.- the real number of available soil nitrogen, kg/ha;

With the number of actually available nitrogen required to produce 1 ton (t) of commodity production per 1 ha, kg/kg (reference material);

Top- utilization of plants soil nitrogen.

On the basis of the calculated potential yield of grain crops (most often, and possibly other) establish the level of effective fertility sod-podzolic soils [12]:

Examples of specific definitions.

Example 1. Determination of reasonably available nitrogen in arable horizon of sod-podzolic sandy loam soil.

The selection of soil samples is trustlevel agrochemical brown on the depth of the arable horizon. The sample is composed of 25-30 individual (25-30 injections brown on the diagonal of the plot). Time selection-early spring (April) and late autumn (October), when the soil is at ravnovesie the structure formation (60% of full capacity), within 7-8 days at t 34-36C. Then 10 grams stamped soil pour 50 ml of distilled water, close the tube with a reflux condenser and boil 20 minutes, if the soil is sandy loam or medium, and 30 minutes, if the soil is loam, from the moment of boiling. 20 ml of the filtrate is placed in a distant flask apparatus of kildala, add 1-2 grams of alloy Devarda, 0.5 grams of Cao and distilled reasonably available nitrogen in the boric acid indicator Graeca. Octarepeat of 0.001 N. H2SO4. Suppose went for titration of 3 ml of 0.001 N. H2SO4. The calculated content actually available nitrogen for plants, mg/kg dry soil

Example 2. To determine effective soil fertility, if the content is actually available nitrogen is equal to 12, 6 mg/kg

Determine the real number of available nitrogen per 1 ha of arable horizon: 12,63=37.8 kg/ha (Weight of arable horizon average 3000000 kg).

At 40% the use of plants actually available soil nitrogen removal will 15,1 kg/ha (37,840:100).

To produce 1 kg of rye, for example, requires 3.1 kg/ha of nitrogen [13]. Reasonably available nitrogen will be enough for projective soil fertility is very low, the soil is virtually untapped.

Example 3. Determination of the effective level of soil fertility on the content actually available nitrogen to plants.

The content is actually available nitrogen in the soil is equal to 30, 50 and 120 mg/kg calculated per 1 ha it will be 90, 150, 360 kg (average weight of arable horizon soil 3000 tons). Utilization of soil nitrogen by plants is on average equal to 40%. Therefore, plants will absorb 36, 60, 144 kg/ha of nitrogen. This amount would be enough for the formation of the grain harvest: winter rye 11,6; 19,4; 54,2 kg/ha (for the formation of 1 kg of the crop of winter rye requires 3.1 kg/ha of nitrogen); barley - 14,4; 24,0; 57,6 kg/ha (for the formation of 1 kg of barley harvest takes about 2.5 kg/ha of nitrogen); oat - 12,2; 20,3; 48,8 kg/ha (for the formation of 1 kg of the crop of oats required 2.95 kg/ha of nitrogen).

Grain yield 8-12 t/ha characterized by very low soil fertility, 13-20 kg/ha - average fertility, 21-45 kg/ha - high and 45 kg/ha - a very high level of soil fertility.

Example 4. The definition of a real plant available nitrogen held in sod-podzolic sandy loam soil of the Leningrad region, Gatchina district, in the fields of long-term stationary field experience Manikowski experimental station (base Agrophysical research Institute). Soil samples for and what the loud and perennial grasses. The soil under perennial grasses of the second year of use after the last hay cutting was plowed in the autumn of the previous year. The content is actually available nitrogen in the soil and grain yield of winter rye are presented in table 8.

Soil without fertilizers refer to sredneplodny cultivated soil for perennial grasses - to high-fertile, well-cultivated.

Example 5. The definition of a real plant available nitrogen conducted on loamy sod-podzolic soil, Leningrad region, Lomonosovsky district, Old Peterhof, on the fields of Biological research Institute of St. Petersburg state University, in terms Mitropoleos experience. We investigated 3 options: soil without fertilizers, soil with zapasnoy lupine and soil with zapasnoy lupine, which was made at 60 kg/ha of nitrogen, phosphorus and potassium at planting winter rye. The content is actually available nitrogen in the soil and grain yield of winter rye are presented in table 9.

Soil without fertilizers the average level of fertility, soil+Lupin-high level of fertility, soil+Lupin+NPK60- very high level of fertility.

Example 6. On the basis of a direct and strong correlation between the content of the real access of different cultures on sod-podzolic soils in the presence of data on the content actually available nitrogen to plants (table 10).

The real number of available nitrogen required to produce 1 kg of commercial products, are presented in table 11 (reference material, Komov M. K., 1977).

The results of numerous experimental studies confirm an increase in the accuracy of the proposed biochemical method for determining the level of soil fertility, reduction of the period of composting soil, the set time for the extraction of available nitrogen boiling water for soils of different texture and the ability to determine the effective fertility of soddy-podzolic soils on the calculated yield of grain crops.

Sources of information

1. Sychev Century, the Dynamics of change, ways of reproduction and improvement of methods for the assessment of soil fertility in the European part of Russia. Summary of the doctoral thesis. Kursk, 2000, 48 S.

2. The Kulakovskaya I.e. The optimal parameters of soil fertility. M.: Kolos, 1984, 271 S.

3. Tyurin, I. C. soil Fertility and the problem of nitrogen in soil science and agriculture. M., 1957, S. 21.

4. Kravkov S. P. Biochemistry and agricultural chemistry of soil processes. Leningrad: Nauka, 1978, S. 180-205.

5. Manufacturing A. L. Assessment of soil fertility by the method of humus balance. M, 1973, S. 27.

6. Lykov A. M. To S. 14-20.

7. Hangar N. F. Humus, soil properties and crop. Soil science, 1998, No. 7, S. 812-819.

8. St. Petersburg A. C. Workshop on agricultural chemistry. M.: Kolos, 1968, - 249 S. (prototype).

9. Khaziev F. H. Methods of soil Enzymology. The science. - 1990, - 188 C.

10. Dmitriev, E. A. Methods of mathematical statistics in soil science. M., 1996, c.115.

11. Kayumov M. K. Handbook of programming yields. M: Rosselchozizdat, 1977, - S. 88.

12. Konovalov A. C. Diagnostic indicators of cultivated soils podzolic type. M., 1967, - 119 C.

Claims

Biochemical method for determining the effective fertility of soddy-podzolic soils, which consists in punching sample of the soil, characterized in that the composting is carried out in a period of 7-8 days at a temperature of 34-36With, and then determine mineral and mobilized from soil organic matter nitrogen by boiling the sample taken from a validated sample of soil, not less than 10 grams by weight and the ratio to water of 1:5 for 20 min for sand, sandy loam and medium loamy soils and 30 min for loamy soils and subsequent determination of the amount of extracted nitrogen in the apparatus of kildala in terms softly CVI (NR. D.), will determine the actual digestibility of its culture by standard factors, and then determine the yield on the amount of nitrogen required to produce 1 kg/ha of marketable products by the formula:

whereto- crop yields, t/ha;

NR. D.- the number of available nitrogen in the soil, kg/ha;

With - reasonably available nitrogen required for production of 1 t/ha of marketable products, kg/kg;

Top- utilization of culture actually available soil nitrogen,

then judge about the level of soil fertility:

at 8-12 t/ha of grain - low fertility

when 13-20 kg/ha of grain - the average level of fertility,

when 21-45 kg/ha of grain - high level of fertility,

with more than 45 kg/ha of grain is a very high level of fertility.

 

Same patents:

The invention relates to the field of test engineering surveys in agriculture and construction, in particular to a device for the investigation of physical-mechanical characteristics of the layer of soil and to study the interaction of the propulsion of the vehicle with the ground

The invention relates to agriculture and soil science, namely to methods of assessment of biological activity and soil fertility on the enzymatic activity of soils

The invention relates to agriculture and soil science, namely to methods of assessment of biological activity and soil fertility on the enzymatic activity of soils

The invention relates to agriculture and soil science, namely to methods of assessment of biological activity and soil fertility on the enzymatic activity of soils

The invention relates to agriculture and soil science, namely to methods of assessment of biological activity and soil fertility on the enzymatic activity of soils

The invention relates to the field of research methodology, evaluation of the protective properties of the materials from toxic chemicals, and in particular to a method of estimating permeability,'dichloromethylsilane through the protective materials the spectral method of qualitative analysis by time of protective action of the material when using-(chloroethyl)butylsulfide as simulator,'dichloromethylsilane simulating penetration ability,'dichloromethylsilane (mustard gas) through the protective materials personal protective equipment (PPE)

The invention relates to the field of study of strength properties of solid materials, in particular of the soil, and can be used in the design of instruments of tillage machines

The invention relates to agriculture and can be used when assessing the heterogeneity of the soil cover fields for agricultural purposes

The invention relates to the reclamation and can be used for the construction of lysimeters

The invention relates to agriculture and can be used to predict the effective use of nitrogen fertilizers on sugar beet

The invention relates to agriculture, in particular to agriculture, and may find application in the improvement of soil fertility in biological farming

The invention relates to agriculture, namely to the local fertilizer

The invention relates to gardening
The invention relates to plant breeding technology

The invention relates to agriculture, namely the application of trace elements in liquid form during the growing season of crops
The invention relates to the technology of crop production

The invention relates to agriculture, in particular to the technology of making of trace elements in liquid form on the leaves and the scourge melons

The invention relates to the field of agriculture, horticulture

The invention relates to the field of agriculture crop production

FIELD: soil restoration from formation fluid contaminants in oil recovery and transportation regions.

SUBSTANCE: claimed composition contains (mass %): chemical ameliorant 3.5-5.7; organic fertilizer 15.7-29.0; adsorbent 67.5-78.6. Method for sectioning soil treatment includes application of composition onto soil layer with 30 cm of depth. Then treated layer is shifted out of spot boundary. Opened surface is covered with composition of present invention. Then mole drainage of 60-65 cm in depth is made in soil by using mole plow or chisel plow, followed by plowing of 58-51 cm in depth and returning of sheared soil into spot.

EFFECT: effective soil restoration from formation fluid contaminants.

5 cl, 2 dwg, 1 tbl

Up!