Compost and preparing method thereof

A technology for composting and manure, applied in the field of composting and its preparation, can solve problems such as straw burning, and achieve the effects of promoting the absorption of phosphate fertilizer, reducing loss, and eliminating the source of diseases and insect pests.

Active Publication Date: 2015-09-23
CHINA AGRI UNIV
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  • Abstract
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Problems solved by technology

In fact, resulting in a large amount of straw being burned

Method used

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  • Compost and preparing method thereof
  • Compost and preparing method thereof
  • Compost and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, preparation compost and fertilizer effect test thereof:

[0039] 1. Preparation of compost:

[0040] 1. Preparation of biochar:

[0041] 1) Straw crushing and compression: use the existing straw crushing machinery to crush the crop straw, transport it to the firing workshop, and put it into a closed container so that the oxygen content of the closed container is 5%. The closed container can be a brick A kiln with a concrete or clay structure, or a high-temperature furnace.

[0042] 2) Firing: Firing is usually ignited with an open flame, and the ventilation and smoke outlets are reserved. The smoke outlets should be equipped with filtering equipment to ensure that the emissions will not cause air pollution. During the firing process, the size of the vent should be controlled according to the combustion situation to avoid aerobic combustion. It can be burned at 400°C for 30 minutes at an oxygen content of 5-6%.

[0043]3) Out of the furnace: After the fi...

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PUM

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Abstract

The invention discloses compost and a preparing method thereof. The preparing method includes mixing biochar and organic fertilizer material for composting to obtain the compost. The compost is of good air permeability, water holding ability and fertilizer holding ability; the water holding ability and the fertilizer holding ability are 3 times and 15 to 20 times as high as those of soil and are relatively stable; the compost has satisfactory sensory quality; by the use of the compost, availability of nitrogen can be improved, various consumptions of spray melting and the like is reduced, the usage of chemical fertilizers is greatly reduced, temperature gas emission and nitrogen loss in composting are avoided, and the problem of straw burning and the problem of soil fertility degradation are solved; by applying the compost to vegetable seedling raising in medium, stress resistance of seedlings can be evidently improved, nutrient absorption and growth is promoted, and the compost is all natural, friendly to the seedlings and environment friendly.

Description

technical field [0001] The invention belongs to the technical field of organic fertilizer preparation, and in particular relates to a compost and a preparation method thereof. Background technique [0002] Due to the large-scale use of chemical fertilizers, instead of the input of organic fertilizers, the current situation of large-scale soil fertility degradation and low nitrogen use efficiency in my country has been caused. The use of traditional organic fertilizers, including earthworm fertilizers, microbially decomposed manure, etc., and the highly advocated straw returning technology are generally considered to be a safe way to restore soil fertility. But there are also certain problems: [0003] First of all, during the composting of organic manure, odor is released, and about 30% of nitrogen nutrients are lost thereby. Moreover, the nitrogen content of organic fertilizer is generally within 6%. In order to meet the needs of crops, the amount of organic fertilizer us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/40
Inventor 李志芳
Owner CHINA AGRI UNIV
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