Slow-release fertilizer to improve alkaline soil and preparation method thereof

A slow-release, soil-based technology, applied in the preparation of organic fertilizers, organic fertilizers, ammonium salt fertilizers, etc., can solve problems such as excessive heavy metals and harmful trace elements, impact on crop growth and yield, and affect crop growth, etc., to achieve slow release The effect of strong type, lightening compaction, reducing fertilization or secondary topdressing

Inactive Publication Date: 2018-07-27
河南省现代农业研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, physical improvement, water conservancy improvement, and biological improvement can only temporarily improve alkaline soil, and have little impact on crop growth and yield. Although the current chemical improvement can reduce the pH value of the soil, some It will cause heavy metals and harmful trace elements in the soil to exceed the standard or the iron deficiency in the improved soil will cause iron deficiency in the planted crops, which will also affect the growth of the crops

Method used

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  • Slow-release fertilizer to improve alkaline soil and preparation method thereof
  • Slow-release fertilizer to improve alkaline soil and preparation method thereof
  • Slow-release fertilizer to improve alkaline soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A slow-release fertilizer for improving alkaline soil, prepared from the following raw materials in parts by weight: 50-70 parts of chicken manure, 17-23 parts of charcoal powder, 2-4 parts of sulfur, and 6-10 parts of compound microbial bacterial agent , 3-5 parts of superphosphate, 1-2 parts of ammonium sulfate, 2-3 parts of potassium nitrate, 0.5-1.5 parts of iron lignin. Wherein, the composite microbial bacterial agent includes Bacillus phleus, photosynthetic bacteria, lactic acid bacteria and saccharomyces, and its effective number of live bacteria is > 200 million / g; the weight ratio of Bacillus phsilis, photosynthetic bacteria, lactic acid bacteria and yeast is ( 0.8-1.2): (0.6-0.8): (1-2): (1.1-1.7); N, P contained in the chicken manure 2 o 5 、K 2 The weight ratio of O is (1.2-1.8):(0.5-1.1):(0.4-0.6).

[0017] The preparation method of the above-mentioned slow-release fertilizer for improving alkaline soil comprises the following steps:

[0018] (1) Put the...

Embodiment 2

[0022] A slow-release fertilizer for improving alkaline soil, prepared from the following raw materials in parts by weight: 60 parts of chicken manure, 20 parts of charcoal powder, 3 parts of sulfur, 8 parts of compound microbial agent, 4 parts of superphosphate, sulfuric acid 1.5 parts of ammonium, 2.5 parts of potassium nitrate, 1 part of iron lignin. Wherein, the composite microbial bacterial agent includes Bacillus phleus, photosynthetic bacteria, lactic acid bacteria and yeast, and its effective number of live bacteria is > 200 million / g; the weight ratio of Bacillus phleus, photosynthetic bacteria, lactic acid bacteria and yeast is 1.0 : 0.7: 1.5: 1.4; N, P contained in the chicken manure 2 o 5 、K 2 The weight ratio of O is 1.5:0.8:0.5.

[0023] The preparation method of the above-mentioned slow-release fertilizer for improving alkaline soil comprises the following steps:

[0024] (1) Put the charcoal powder, chicken manure, and composite microbial agent in the above...

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Abstract

The invention provides a slow-release fertilizer to improve alkaline soil and a preparation method thereof; the slow-release fertilizer is prepared from, by weight, 50-70 parts of chicken manure, 17-23 parts of wood charcoal powder, 2-4 parts of sulfur, 6-10 parts of a composite microbial agent, 3-5 parts of calcium superphosphate, 1-2 parts of ammonium sulfate, 2-3 parts of potassium nitrate, and0.5-1.5 parts of lignin iron. The slow-release fertilizer to improve alkaline soil can effectively decrease pH of alkaline soil, relieve caking of the soil, increase the contents of calcium, iron andorganics in soil, improve the microecological environment of the soil, maintain soil fertility and reduce fertilization or secondary topdressing.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a slow-release fertilizer for improving alkaline soil and a preparation method thereof. Background technique [0002] Soil acidity and alkalinity are the basic characteristics of soil and one of the important factors affecting soil fertility. The use of fertilizers has an inseparable relationship with the properties of the soil. There are various substances in the soil water solution, referred to as soil solution for short. In the soil solution, there are minerals such as calcium, magnesium, potassium, sodium, ammonium and other nitrates, carbonates, chlorides, sulfates and phosphates, as well as gases such as oxygen, nitrogen and carbon dioxide, and a small amount of soluble protein and sugar. Organic substances such as amino acids, amino acids, etc., because so many substances are dissolved in the soil solution, different soils are acidic and alkaline due to the types and...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCC05B1/02C05F17/00C05G3/80C05C3/00C05C5/02C05D9/00C05F3/00C05F11/00C05F11/08Y02W30/40
Inventor马政华陈国防李国发张玉华
Owner河南省现代农业研究院