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Straw biomass charcoal based compound fertilizer and preparation method thereof

A technology of straw biomass charcoal and compound fertilizer, applied in the field of compound fertilizer, can solve the problems such as the research report on the utilization of straw biomass charcoal and compound fertilizer, etc., and achieve high tar cracking activity and stability, uniform radial distribution, and operation. Easy-to-control effects

Inactive Publication Date: 2015-08-05
GUANGDONG DAZHONG AGRI SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are no research reports on the use of rice straw biochar and compound fertilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062]A preparation method of rice straw biomass charcoal-based compound fertilizer, comprising the following steps:

[0063] (1) Pyrolysis of straw to obtain straw biochar and combustible gas;

[0064] (2) Mix the raw materials of the compound fertilizer with rice straw biomass charcoal accounting for 8% of the total weight of the compound fertilizer, melt and granulate, and collect the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0065] The compound fertilizer includes the following raw materials in parts by weight: 0.5 parts of microbial strains, 2 parts of synergists, 1 part of water retention and anti-seepage agent, 10 parts of nitrogen fertilizer with a nitrogen content of 40%, and 10 parts of phosphate fertilizer with a phosphorus content of 10%. 15 parts of potash fertilizer containing 50% potassium;

[0066] (3) Cool the collected pellets under negative pressure for screening;

[0067] (4) Coat the screened ...

Embodiment 2

[0079] A preparation method of rice straw biomass charcoal-based compound fertilizer, comprising the following steps:

[0080] (1) Pyrolysis of straw to obtain straw biochar and combustible gas;

[0081] (2) Blending the raw materials of the compound fertilizer with rice straw biochar accounting for 9% of the total weight of the compound fertilizer, melting, granulating, and collecting the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0082] The compound fertilizer includes the following raw materials in parts by weight: 0.7 parts of microbial strains, 3 parts of synergists, 1.2 parts of water-retaining and anti-seepage agents, 15 parts of nitrogen fertilizers with a nitrogen content of 42%, and 12 parts of phosphate fertilizers with a phosphorus content of 12%. 17 parts of potash fertilizers containing 52% potassium;

[0083] (3) Cool the collected pellets under negative pressure for screening;

[0084] (4) Coat the ...

Embodiment 3

[0096] A preparation method of rice straw biomass charcoal-based compound fertilizer, comprising the following steps:

[0097] (1) Pyrolysis of straw to obtain straw biochar and combustible gas;

[0098] (2) Mix the raw materials of the compound fertilizer with rice straw biomass charcoal accounting for 10% of the total weight of the compound fertilizer, then melt, granulate, and collect the pellets; wherein, the heat required for melting is provided by the combustion of the combustible gas;

[0099] The compound fertilizer includes the following raw materials in parts by weight: 1 part of microbial strain, 3 parts of synergist, 1.5 parts of water retention and anti-seepage agent, 20 parts of nitrogen fertilizer with a nitrogen content of 45%, and 15 parts of phosphate fertilizer with a phosphorus content of 15%. 20 parts of potash fertilizer containing 55% potash;

[0100] (3) Cool the collected pellets under negative pressure for screening;

[0101] (4) Coat the screened p...

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Abstract

The invention relates to the technical field of compound fertilizers, in particular to a straw biomass charcoal based compound fertilizer and a preparation method thereof. The preparation method includes the steps: splitting straws at high temperature to obtain straw biomass charcoal and combustible gas; mixing, melting and pelletizing raw materials of the compound fertilizer and the straw biomass charcoal accounting for 8-12% of the weight of the gross raw materials of the compound fertilizer, and collecting pellets; cooling the collected pellets by negative pressure and screening the pellets; coating, packaging and delivering the screened pellets to obtain the straw biomass charcoal based compound fertilizer. The straw biomass charcoal based compound fertilizer has rich nutrient substances, nutrient elements are coordinately and persistently released, fertilizer nutrient utilization efficiency is high, soil can be effectively improved and fertilized, fertilizer utilization rate is increased, the content of soil organic matters is increased, soil bulk density is reduced, the moisture and fertilizer retention capacity of the soil is improved, crop growth is promoted, crop yield can be remarkably improved, crop quality is improved, and the fertilizer has obvious economic benefits.

Description

technical field [0001] The invention relates to the technical field of compound fertilizers, in particular to a straw biomass carbon-based compound fertilizer and a preparation method thereof. Background technique [0002] Fertilization has become one of the indispensable technical measures of agricultural production, contributing more than half of crop production. The utilization rate of fertilizers in China has always been relatively low. For example, the average utilization rate of nitrogen fertilizers for current crops is only about 30%, which is nearly 20 percentage points lower than that of developed countries. This is due to the unscientific fertilization methods on the one hand, and the fertilizer itself on the other hand. characteristics. It is urgent to improve fertilizer utilization efficiency, and research and development of new multifunctional fertilizers is one of the important ways to improve fertilizer utilization efficiency. [0003] Biochar is a solid pro...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C01B31/12C05G3/80
Inventor 林小明
Owner GUANGDONG DAZHONG AGRI SCI CO LTD
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