SU655373A1 - Method of improving soil structure - Google Patents

Description

(54) METHOD FOR IMPROVING SOIL STRUCTURE

Phosphites are unstable and, if they do not interfere with organic matter, decompose to phosphates

Example 1: In three vegetation cxxjyna with holes in the bottom, a mixture of the sedimentary components is laid {table. 1): Vessel No. I - 9.4 kg of soil, 4.2 g MNDMO 2.7 G Ca (OH) g, and 5.Ob g KeHPO j vessel No. 2 9.4 kg. soil, 7.2 g SdNOD, 2.7 g Ca (OH) 2j 3.09 g vessel No. 3 - 9.4 kg of soil, 7.2 g NH4 MOz, 2.7 g Ca (OH) a.

Gchcha black earth from beneath myfoot grass of the fire, which was planted 5 years old (earth vepahanna). Vegetation experiments were carried out at room temperature (), moisture in the joint was maintained by 30% daily addition of distilled water, pH GjS7, 1; trial period 32 and 49 days. Determination of humus in the soil: 0.3 g finely ground •, ground roots are treated with 10 ml of 0s4H. chromic acid, placed on a thermostat for 20 minutes, then titrutote, an excess of chromic acid 0s 1n. salt solution Mora | the humus content is calculated by the formula;

(a) B0,000517-1001D7.-........-.......,

Where; a - the amount of the salt of the Mohr salt as followed by the titration of the control, ml |

in - the number of ONE. salt Mora, went to the titration of the sample, ml |

K - correction factor - to titer py salt Mora

P hinge air-dry soil, g Motionless ryTvijt ;. (A) determine the next step: 2 g each are treated with 5O ml of 0.5N acetic acid. The mixture is stirred for 2 hours, filtered, washed 3 times with the same solution. Then the soil (not washed with water) is treated with 50 ml of 4% - but jro ammonia solution, shaken for 1 h, filtered, washed 1 time with the same solution, dried and the humus content in the soil is determined. In the filgrate, nonorganic and then orphanganic phosphorus (B) is also determined by burning a part of the extract in a mixture of Hn5O45) in molybdenum blue. Determine the total phosphorus from the original soil (from the vessels) and determine the amount of stable phosphorous compounds in the soil to be divided between the total phosphorus and below. The collective quality is determined again.

formed (from applied fertilizers) sustainable phosphorus (C) by the difference in the content of stable phosphorus in the vessel and in the original soil.

The results of the work are presented in Table. 1. Adding phosphite to vessel No. 2 gave a slight increase in humus (0.94%).

Example 2. In 4 vegetative cocsTia with holes in the bottom, a mixture of the following components is laid: 8 kg of soil (the same as in example 1) in vessels No. 4. 6 yymeshut gyu 10 g Ca (OH) g; in vessel No. 7 2.7 Ca (OH) 2; in vessel number 4 - 16,8 r. and 50.8 g Canrose; In vessel No. 5, X. 19.2 g of Canrose, in vessel No. 6, the same components are placed as in vessel No. 5, and trace elements 1.4 g of CuSO4., 0.94 g of ZnCEg, 1.64 g of MnSO4 .. B Vessel No. 7 mixed 9.5 g of soil with 2.7 g of Ca (OH) 2 2.1 g of HHON 3,4 g of KgHPOg. The vessels are kept for 20 and 37 days (vessel bf for 13-13 days) under the same conditions as in example 1, at pH 7.6-8.0. All determinations were carried out analogously to example 1. The results of the work are presented in table. 2

At a probability level of P 0.05, the average humus content of 20 days of exposure is 4.40 0.02% with a determination error of 0.5%. At the probability level P 0, O5, the average humus content is 4.46 - 0.08% with an error of determination of 1.9% (for all terms).

For a period of 20 days if the absolute number of guyus & by 0.14, which is 3.30%, the Eepodine humus increases by 0.56, which is

AO JSC, 5b1OO

- “- g 40%.

AO1,4O

The results of vessel No. 6 show that trace elements do not work at pH 7.

The amount of organic mobile phosphorus per dose of applied phosphate (5 g per 100 g bale) increases compared to the original soil from 1.8 to 4.0 times (up to 6O mg / 100 g of soil) over a period of 18-49 days. At the same time, the amount of stable phosphorus is added by adding one dose of phosphite to 7.5-2.0.

times less than. from one dose of phosphate and reaches a minimum when combined with phosphite and ammonium fertilizers (inverse dependence).

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Claims (2)

Invention Formula Information sources accepted in Method for improving soil structure, attention during examination including the introduction of phosphate salts 1.Ovcharenko F. D. Kn. Complex Knouslot, distinguished by bio-mineral fertilizers, Academy of Sciences that, in order to increase the organic USSR, Problemna commission of BMU, Kiev, soil substances, in her pre 1970, or together: with ammonium and capping compounds 2. Copyright USSR Phosphites are introduced with fertilizers at. № 298318, cl. And 01№ 7/02, 1969.