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Method for soil restoration by means of biological decomposition of total straw returning in crop rotation system

A technology for repairing soil and crop stalks, which is applied in the direction of soil preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve problems affecting the stability of grain production and food safety, difficulties in fine technology, and soaring wages, and achieve improved agriculture. Cultivability, obvious comprehensive effect, and cost reduction effect

Active Publication Date: 2016-06-08
上海大井生物工程有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Hangjiahu area and Shanghai are high-efficiency areas for the promotion of high-yield rice and wheat technology. In the past, labor was basically used to complete the work. Now the labor force has been transferred in large numbers, wages have soared, and fine technology is difficult to implement. Extensive planting of rice and wheat has affected the stability and stability of grain production. food safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] On July 18, 2015, when the temperature was above 25℃, the spring corn stalks were returned to the field. The corn stalks were cut and cut into 5 cm sections. The soil surface was spread flat, and the special digestion solution of Trichoderma was sprayed on the cut corn cuts. Trichoderma fused with the bleeding fluid of corn plants, plowed into the soil, and used enough water in the soil to decompose the corn stalk fiber. Excavation and inspection on September 28 showed that the corn stalks were black and smelly, soft and soft when wet. Elastic, brittle and easily broken when dry.

[0033] In the past, there was no careful plan for the farming method of returning the straw to the field. The soil was damaged and turned into a problem soil. Set up a docking plan for crops and crops within one year, and implement crop rotation and stubble replacement in the second and third years. The soil is moderately used, continuous cropping is refused, and the soil enters a benign operati...

Embodiment 2

[0036] Corn and other stalk decomposing agents (special digestion solution for Trichoderma) and the 2014 design medium orthogonal test factor level. The optimal combination of optimal medium for the experiment is A 1 B 2 C 1 D 1 , Rice straw powder: wheat bran is 9:1, the ratio of material to water is 1:1, ammonium sulfate is 1%, and Tween-20 is 0.1%. The test shows that rice straw is degraded at 17~23℃ for 20 days. The corn stover was degraded at 27°C for 7 days.

Embodiment 3

[0038] The effect of multifunctional Trichoderma special digestion solution on the transformation of NPK main nutritional indicators. Compared with the control without decomposing agent, the N and P transformations of the straw fungus No. 1 to No. 6 all showed comparative advantages, which were significantly higher than the control, and K was flat or slightly lost. For example, Trichoderma H6 bacteria NPK (1.88, 5.9×10 3 , 2.04×10 4 ), contrast (1.04, 1.8×10 3 , 2.08×10 4 ).

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Abstract

The invention belongs to the technical field of soil improvement and particularly discloses a method for soil restoration by means of biological decomptosition of total straw returning in a crop rotation system. The straw returning technology relates to many factors such as proper temperature of the natural environment and sufficient water, microorganisms promote decomposition of mineralized nutrients, the straw carbon-nitrogen ratio is reduced, and the situation that straw fights for nitrogen elements with crops, and accordingly nitrogen elements must be additionally applied is avoided; cellulose and lignin start to decompose after microorganism bacteria are mixed with the straw; humic acid is used for intermediate guidance, trichoderma atroviride promotes conversion of rice and wheat and other cellulose so that soil can become permeable and loose, soil organic matter is added due to conversion of the cellulose, and soil fertility is improved to a certain extent after mineralization.

Description

Technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for biologically digesting and restoring the soil by returning all straws to the field in a rotation system. Background technique [0002] my country's rice and wheat double-cropping areas have a wide area, mainly distributed on the two sides of the Yangtze River Basin, northern Jiangsu, Huaibei, Henan and other parts of the country. They are the main grain producing areas. The region has good soil fertility, sufficient light and heat resources, abundant annual rainfall, high grain output, relatively developed planting and breeding industries, a prosperous economy, and high per capita income. At the same time, there are many agricultural and sideline products and a large amount of straw production. Before the 1980s, crop stalks were mostly used for animal feed, life fuel, and partly used as raw materials for the edible fungus processing industry. The times are devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C09K17/32C09K101/00
CPCA01B79/02C09K17/32C09K2101/00
Inventor 唐卫东赵永新陆嘉伟李欣欣陈硕闻陈捷
Owner 上海大井生物工程有限公司
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