High efficient organic modifier for acidic soil

A technology of acidic soil and improver, which is applied in the direction of organic fertilizers, soil conditioning materials, special forms of dry distillation, etc. It can solve the problems of reducing the improvement effect of organic materials on soil acidity, the improvement effect is not long-lasting, and it is easy to be decomposed by microorganisms. Rich, improved effect, efficient production effect
CN101691489BInactive Publication Date: 2011-08-10INST OF SOIL SCI CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF SOIL SCI CHINESE ACAD OF SCI
Publication Date
2011-08-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A high efficient organic modifier for acidic soil is prepared by taking crop straws as raw materials and is characterized by the steps of drying and crushing straws of legume crops, putting into a heating furnace, and carrying out indirect heating for dry distilling and charring at 350 DEG C for four hours. The high efficient organic modifier for acidic soil is completely made from crop straws without any other matters added, is processed and prepared by employing prior equipment and technology, and features abundant raw materials and convenient preparation.
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Description

1. Technical field

[0001] The invention belongs to the technical field of preparation of soil improvement and soil conditioning materials, and relates to the technology of preparing high-efficiency acidic soil organic modifier by low-temperature carbonization of leguminous plant straws. 2. Background technology

[0002] Acidic soils have low pH and high reactive aluminum, which are the limiting factors affecting the growth and yield of crops on this type of soil. The traditional method of improving acidic soil is to neutralize soil acidity and increase soil pH by adding alkaline substances such as lime, but this requires the consumption of additional mineral resources.

[0003] Studies in recent years have found that agricultural waste such as plant straws and green manure can improve soil acidity, especially leguminous plant straws, which contain more alkaline substances and organic nitrogen, have been observed in short-term experiments. Acidity has obvious improvement (Po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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