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Paddy rice straw back-to-field method and application

A straw and rice technology, applied in the field of rice straw returning to the field, can solve the problems of soil compaction, soil fertility decline, many diseases and insect pests, and organic matter content decline, and achieve the effects of increasing soil porosity, obvious alkali washing effect, and increasing content

Inactive Publication Date: 2017-02-15
唐山曹妃甸钜源农业科技有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Serious air pollution has been caused. At the same time, cultivated land cannot be planted year after year, soil nutrients cannot be replenished in time, and organic matter content has declined year by year.
Due to the large proportion of chemical fertilizer application in the total amount of fertilizer, the soil organic matter has not been replenished in time, resulting in soil compaction, soil fertility decline, crop malnutrition and more serious consequences of pests and diseases. Clean power and broad prospects for promotion and application

Method used

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with embodiment:

[0022] The method of returning rice straw to the field:

[0023] After the rice is mature, use the compound harvester to crush the straw for rice harvesting. The length of straw crushing should be <10cm, and the chopped straw should be evenly scattered in the field to prevent the rice seedlings from becoming stiff and dead due to excessive concentration of straw.

[0024] Carbon-to-nitrogen ratio is an important factor affecting the decomposition of lost straw. The carbon-nitrogen ratio of rice straw is relatively large, and microorganisms decompose straw frogs and compete with rice seedlings for nitrogen, affecting the growth of rice seedlings. Therefore, it is necessary to increase fertilization, and apply 5-10kg / mu of urea before plowing.

[0025] Sprinkle straw soil activator (enzyme preparation), before mechanical plowing, spray soil activator 5-10kg / mu evenly on rice straw. It...

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Abstract

The invention relates to a straw back-to-field method and application, particularly a paddy rice straw back-to-field method and application. The paddy rice straw back-to-field method comprises the steps of using a composite harvester for crushing straw after paddy rice harvesting; spreading the crushed straw evenly in the field; applying 5-10kg / Mu urea before plowing; sprinkling a soil activator on the strew evenly; and performing soil rotary tillage. The paddy rice straw back-to-field application comprises the steps of controlling water, ventilation and insect disease after putting the paddy rice straw back to field and in the paddy rice seedling planting process. The crushing and back-to-field of the paddy rice straw can improve soil organic matter content. Soil porosity is increased, so that the soil is loosening and cultivation is easy. Micro coacervates >0.25mm in soil exists in soil; straw back-to-field is beneficial for the formation of 1-0.25mm coacervates, 1.7 times of fertilizer processing; organic acidity generated when the back-to-field decomposes can neutralize soil alkaline, having an obvious alkali removing effect.

Description

technical field [0001] The invention relates to a method and application of straw returning to the field, in particular to a method and application of rice straw returning to the field. Background technique [0002] Rice straw is a valuable resource. However, most of the areas in my country have not adopted effective measures of returning straw to the field, but directly burned it in the field. Serious air pollution has been caused, and at the same time, cultivated land cannot be planted year after year, soil nutrients cannot be replenished in time, and organic matter content has decreased year by year. Due to the large proportion of chemical fertilizer application in the total amount of fertilizer, the soil organic matter has not been replenished in time, resulting in soil compaction, soil fertility decline, crop malnutrition and more serious consequences of pests and diseases. Qingli and broad prospects for promotion and application. Contents of the invention [0003]...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 杨友臣
Owner 唐山曹妃甸钜源农业科技有限公司
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