RU2088557C1 - Method of soil fertilizing - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: method involves addition of tripolite to soil in combination with mineral fertilizers at amount 60% of fertilizer weight, not less. EFFECT: improved method of fertilizing. 4 tbl

Description

 The invention relates to agriculture, in particular to increasing soil fertility.

A known method of fertilizing the soil, including the introduction of mineral fertilizers into the soil along with adsorption additives. (one)
A known method of fertilizing the soil, including the introduction of mineral fertilizers into the soil together with crushed expanded clay. (2) However, the proposed method requires additional processing of the fertilizer with silicone, and also does not provide sufficient soil fertility.

 The purpose of the invention is increasing soil fertility.

 This goal is achieved by the fact that before applying to the soil, mineral fertilizers are mixed with tripoli in an amount of at least 60% by weight of mineral fertilizers.

In the proposed method, the following mineral fertilizers and tripoli were used: ammonium nitrate GOST 2-85,
granular superphosphate GOST 16306-80
potassium chloride GOST 4568-83,
Tripoli of the Pervomaiskoye field of the Alatyr district of the Chuvash Republic.

 The chemical composition is shown in table 1.

The content of trace elements:
B 7.5 mg / kg, Mo 2.5 mg / kg, Cu 450 mg / kg, Mn 500 mg / kg.

 The present invention solves the problem of fertilizing the soil in order to increase crop yields.

 The difference between the claimed solution from the prototype is the use of Tripoli as an adsorption additive to mineral fertilizers.

 Tripoli in the proposed solution is not only an adsorption additive but also a fertilizer, as it contains important nutrients silicon, calcium, magnesium, potassium, phosphorus and trace elements. Due to its porosity of 60-65%, it absorbs water well and promotes the accumulation of nutrients in the soil.

When making tripoli in a dose of less than 60% of the weight of mineral fertilizers, a slight increase in yield is observed (potato yield increases by 4.5%. Table 2, example 1)
When making tripoli in a dose of 80% by weight of mineral fertilizers, an increase in grain yield by 27% is observed (see example 2).

Example 1. The method of fertilizing the soil was tested on gray forest soil with a potato crop and on sod-podzolic soil with a spring wheat crop. The experiments consisted of four repetitions in an experimental plot of 1 m ² .

Mineral fertilizers with a ratio of N ₁₇₂ P ₄₈ K ₆₈ (the dose most effective for local soil and climatic conditions) were mixed with tripoli in the ratio of 60% by weight of mineral fertilizers for potatoes and 70% by weight of mineral fertilizers for spring wheat. Comparative data are given in table. 2 and 3.

From table 2 it follows that the use of tripoli for fertilizing the soil together with mineral fertilizers increases the yield of potatoes in comparison with the control by 4.5%
From table 3 it follows that the yield increase is 17% higher compared with the control.

 Example 2. The method is tested in a production environment on sod-podzolic soil. The depth of the arable layer is 25-28 cm, an area of 10 hectares, a barley culture.

Fertilizers in a dose of N ₁₇₂ P ₄₈ K _{68 were} mixed with tripoli in the ratio of 80% by weight of mineral fertilizers. The obtained barley crop amounted to 50.8 c / ha, which is 27% more than in the field with fertilizers 40.0 c / ha (according to the prototype, by 20%).

 The proposed method will increase the yield of crops by 17-27%

Claims (1)

 A method of soil fertilizing, including the introduction of mineral fertilizers into the soil together with an adsorption additive, characterized in that tripoli is used as an adsorption additive in an amount of at least 60% by weight of mineral fertilizers.

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