Method for rapidly increasing soil organic matter of dry-farming land

A technology for arable soil and organic matter, applied in the directions of organic fertilizers, soil conditioning materials, chemical instruments and methods, etc., to improve soil structure, maintain soil organic matter balance, and promote a virtuous cycle of agro-ecology

Inactive Publication Date: 2003-03-26
CHANGCHUN INST OF GEOGRAPHY CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In the United States, the method of no-tillage and returning all the straw produced on the ground to improve soil organic matter is not applicable in China.

Method used

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Embodiment Construction

[0013] The present invention was carried out in 1998-2001 in Chenguang 6, Wopi Township, Dehui City, Jilin Province, China. This place is located in the southern part of the black soil belt of the Songnen Plain in China. The agricultural development has a history of more than 100 years. Due to the predatory management of farmers, The black soil has degraded seriously, and the organic soil has dropped from 3.2%-4.3% in the 1970s to 2.5%-3.0% in 1998, with a rate of 0.025% decline every year. There is an urgent need to fertilize the soil.

[0014] After the autumn harvest in 1998, the root stubble in 1.5 hectares of cultivated land was smashed and returned to the field with a rotary tiller. In July 1999, 9450 kilograms of corn stalks produced in 1.5 hectares were composted by the method of the present invention, and they were completely decomposed after 50 days. In the spring of 2000, these fertilizers were applied to 1.5 hectares of arable land. Also in the spring of 2001, the ...

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Abstract

The invention is the improvement of soil fertility in agricultural technology, is a method for rapidly enhancing the soil organic matter of drought plowland. The invention uses the rotary cultivator to crush and the stubble and the roots about 10-20 cm below the ground and return itto field after harvestry and before getting frozen; it uses the plant straw as material, incoulates microbe compound germ agent, it is made up outdoor by semi-pit yeasting; the straws are rotten and heated to preserve fertilizer, it is scattered into soil in spring. The invention can maintain the balance of soil organic matter, it improves the structure of soil, promotes the benign circulation of agriculture zoology.

Description

technical field [0001] The invention belongs to the improvement of soil fertility in the field of agricultural technology, and relates to a method for rapidly increasing soil organic matter. Background technique [0002] The amount of soil organic matter content is an important indicator of soil fertility, but over the years, due to heavy use and light cultivation, soil organic matter has dropped significantly. For example, the soil organic matter in Lanxi County, Heilongjiang Province, China was 6-8% at the beginning of reclamation, and now it has dropped to 3-8%. 4%; soil organic matter in Tieling County, Liaoning Province, China has dropped from 2-3% in 1960 to 1-1.4% in 1996. [0003] For a long time, farmers have been using organic fertilizers such as barn manure and green manure to ensure the balance between supply and demand of soil organic matter. [0004] In the United States, the no-till method is used to return all the straw produced on the ground to the field to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/32
Inventor 齐晓宁王洋王其存刘兆永
Owner CHANGCHUN INST OF GEOGRAPHY CHINESE ACAD OF SCI
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