Saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer and use thereof

A saline-alkali soil and organic fertilizer technology, applied in the field of organic fertilizers, can solve the problems of improving the physical and chemical properties of rice saline-alkali soil, and achieve the effects of increasing the living environment and quantity, wide sources of raw materials, and large specific surface area

Inactive Publication Date: 2016-03-09
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous measures to improve saline-alkali soil have a certain improvement effect, but these measures and technologies have not really touched the barrier rice saline-alkali soil, and have not fundamentally improved the physical and chemical properties of rice saline-alkali soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] After the corn stalks were dried and pulverized, they were subjected to anaerobic high-temperature pyrolysis and carbonization treatment in an XN-II type straw pyrolysis carbonization furnace at 500°C for 3 hours. After carbonization, they were cooled and pulverized, and passed through a 2mm sieve to obtain biochar raw materials.

Embodiment 2

[0033] After the rice straw is dried and pulverized, it is subjected to anaerobic high-temperature pyrolysis carbonization in an XN-II type straw pyrolysis carbonization furnace at 600°C for 2.5 hours. After carbonization, it is cooled and pulverized, and passed through a 2mm sieve to obtain the raw material of biochar.

Embodiment 3

[0035] After the soybean stalks were dried and pulverized, they were subjected to anaerobic high-temperature pyrolysis and carbonization treatment in an XN-II straw pyrolysis and carbonization furnace at 700°C for 2 hours. After carbonization, they were cooled and pulverized, and passed through a 2mm sieve to obtain biochar raw materials.

[0036] 2. Preparation of special carbon-based organic fertilizer for rice in saline-alkali soil

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PUM

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Abstract

The invention relates to saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer has a low cost and high fertilizer efficiency, is economic and environmentally friendly, improves a soil water binding capacity and permeability, and has functions of keeping fertility, slowly releasing fertilizer and reducing paddy rice salinization. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer comprises biomass charcoal, chicken manure, pyroligneous liquor, fermented soybean meal and potassium humate. The biomass charcoal is prepared by thermal cracking charring of biomass raw materials under anoxic conditions. The saline-alkali soil paddy rice special-purpose carbon-based organic fertilizer can be used for paddy rice plantation, can improve a saline-alkali soil environment and can improve an organic paddy rice yield.

Description

technical field [0001] The invention relates to a carbon-based organic fertilizer, in particular to a special carbon-based organic fertilizer for rice in saline-alkali soil and its application, belonging to the field of organic fertilizers. Background technique [0002] my country has a long history of farming, a lot of people and less land, high planting index, and low soil fertility. In order to obtain high yield, the amount of chemical fertilizer application must be increased, and the method of fertilizer application is improper, such as "one shot", surface application, etc., resulting in fertilizer utilization. Low, excessive application of chemical fertilizers will cause eutrophication of water bodies and pollute the environment. [0003] As early as thousands of years ago, charcoal was used as a soil improver by the ancient Indians in the Amazon region of South America to improve the tropical weathered and leached soil in South America. The soil fertility of the local a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04A01B79/02C05G3/80
CPCA01B79/02C05F3/00C05G3/80C05F5/008C05F11/00C05G3/00
Inventor 王宏燕赵伟李传宝范金霞赵朋成赵承森孙泰朋李晓庆
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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