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Special bio-fertilizer for moderate-severe saline-alkali soil and preparation method thereof

A technology for severe saline-alkali soil and biological fertilizers, applied in the preparation of organic fertilizers, organic fertilizers, fertilizer mixtures, etc., can solve the problems of short action time, low bacterial survival efficiency, low crop growth, etc., and achieve the effect of improving fertility.

Inactive Publication Date: 2020-06-16
CHAMBROAD CHEM IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the gaps in the above-mentioned technologies, the present invention provides a biological fertilizer for improving medium-severe saline-alkali land and its preparation method and application. The biological fertilizer produced by organic fertilizer, vermicompost, water-retaining agent, nitrogen fertilizer, and calcium fertilizer solves the problems of low survival efficiency, short action time and low crop growth in saline-alkali land with a salt content above 6‰, and realizes medium The salinity of severely saline-alkali land is reduced

Method used

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  • Special bio-fertilizer for moderate-severe saline-alkali soil and preparation method thereof
  • Special bio-fertilizer for moderate-severe saline-alkali soil and preparation method thereof
  • Special bio-fertilizer for moderate-severe saline-alkali soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A special biological fertilizer for medium and severe saline-alkali land, composed of 100kg of special fertilizer: 65kg of organic fertilizer, 10kg of water-retaining agent, 6kg of vermicompost, 4kg of calcium fertilizer, 10kg of nitrogen fertilizer, and 5kg of compound microbial agent, and then coated and granulated Then get granular fertilizer.

[0067] The specific preparation method is as follows:

[0068] (a) Preparation of organic fertilizer, the organic fertilizer adopts mechanically pulverized corn stalks (2-3cm) and cow dung to be mixed with a material with a carbon-to-nitrogen ratio of 30:1 and then fermented in an indoor tank type compost for 30 days, and the moisture content of the material is maintained at 55 %, when the temperature reaches 50°C, turn the compost, and turn the compost once every 5-7 days. After the fermentation, the color of the organic fertilizer is dark brown and has no obvious odor. %, the heavy metal detection does not exceed the stand...

Embodiment 2

[0075] A special biological fertilizer for moderate to severe saline-alkali land, composed of 100kg of special fertilizer: 70kg of organic fertilizer, 10kg of water-retaining agent, 5kg of vermicompost, 2kg of calcium fertilizer, 8kg of nitrogen fertilizer, and 5kg of compound microbial agent, and then coated and granulated Then get granular fertilizer.

[0076] The specific preparation method is as follows:

[0077] (a) prepare organic fertilizer, described organic fertilizer adopts the crushed fungus residue and cow dung to be mixed with the material of 35:1 by carbon-to-nitrogen ratio and ferment in indoor tank type composting for 35 days, and the material moisture is kept at 59.6%, when the temperature reaches Start turning at 50°C and turn once every 5-7 days. After fermentation, the color of the organic fertilizer is dark brown and has no obvious odor. The index detection requirements are that the organic matter content is 48.32%, the total nutrient reaches 5.08%, and th...

Embodiment 3

[0084] A special biological fertilizer for medium and severe saline-alkali land, composed of 100kg of special fertilizer: 75kg of organic fertilizer, 2kg of water-retaining agent, 6kg of vermicompost, 4kg of calcium fertilizer, 10kg of nitrogen fertilizer, and 3kg of compound microbial agent, and then coated and granulated Then get granular fertilizer.

[0085] The specific preparation method is as follows:

[0086] (a) prepare organic fertilizer, described organic fertilizer adopts the maize stalk (2-3cm) after mechanical crushing and cow dung is 25: 1 material mixing by carbon-nitrogen ratio and then ferments 30d in indoor tank type composting, and material moisture keeps at 53.7%, when the temperature reaches 50°C, turn the compost, and turn the compost once every 5-7 days. After the fermentation, the color of the organic fertilizer is dark brown and has no obvious odor. 5.12%, the heavy metal detection does not exceed the standard, and the index detection meets the NY525 ...

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Abstract

The invention belongs to the technical field of bio-fertilizer and saline-alkali soil improvement. The invention discloses a bio-fertilizer for improving moderate-severe saline-alkali soil as well asa preparation method and application thereof. According to the invention, the bio-fertilizer is prepared by mainly adding mainly a compound microbial agent of a specific salt-tolerant strain, a mixedorganic fertilizer, wormcast, a water-retaining agent, a nitrogen fertilizer and a calcium fertilizer; the problems of low survival efficiency, short action time and low crop growth of strains in saline-alkali soil with the salt content of 0.6% or above are solved, and the salt content of moderate-severe saline-alkali soil is reduced, organic matters are increased and crop growth is improved. Theproduct is mainly salt-tolerant nutritional strains and metabolites thereof, has the characteristics of strong strain activity, long lasting action time, soil fertility improvement, soil aggregate structure increase and crop growth promotion, and improves the salt conversion and fertility improvement in the soil through the strain propagation effect, thereby finally realizing the crop yield increase.

Description

technical field [0001] The invention relates to the technical field of soil improvement, and provides a saline-alkali improved biological fertilizer and a preparation method thereof. Background technique [0002] The improvement and management of saline-alkali soil is one of the important fields in the development of agriculture, ecological environment management and ecological restoration in all countries in the world. Soil salinity, soil organic matter content, soil bacterial activity, plant survival rate and yield after planting have become a measure of saline-alkali land improvement. important indicators. [0003] The salt content of the soil is distributed according to mild, moderate and severe. The salt content of mild saline-alkali land is ≤3‰, the salt content of moderate saline-alkali land is ≤6‰, and the salt content of severe saline-alkali land is ≥10‰. Documents show that the content of organic matter in the soil, the amount of various bacteria and fungi in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05G5/30C05F11/08
CPCC05C9/00C05F17/00C05F11/08
Inventor 何雄马韵升董寿周陈振发张甲庆王春涛姚宁宁刘海玉杨传伦徐泽平王秀芝张峰王强
Owner CHAMBROAD CHEM IND RES INST CO LTD
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