Simplified straw-returning-to-field method applicable to clay paddy fields

A technology for paddy field and white soil, which is applied in the field of comprehensive utilization of crop straw returning to the field and soil improvement to achieve the effects of reducing the amount of incineration, promoting the release of nutrients, and promoting the formation of agglomerate structure.

Inactive Publication Date: 2015-04-08
INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the lack of effective straw utilization and treatment methods, wheat straw has become a burden,

Method used

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  • Simplified straw-returning-to-field method applicable to clay paddy fields
  • Simplified straw-returning-to-field method applicable to clay paddy fields
  • Simplified straw-returning-to-field method applicable to clay paddy fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Straw light and simplified method of returning to the field and its effect of improving fertilization on low-yielding white soil paddy fields—a field comparative experiment in 2011 (Location: Yandian Township, Feixi County, Anhui Province).

[0043] The soil used for the test is a white soil type paddy soil developed from Xiashu loess, with low organic matter and available nutrient content, and the annual rice yield is 6500kg / hm 2 Left and right are paddy fields with medium and low yields.

[0044] A light and simplified straw returning method suitable for white soil paddy field includes the following 6 steps:

[0045] (1) Return the straw directly to the field. Before the wheat matures in May, a field with uniform fertility and convenient irrigation and drainage is selected in advance in Yandian Township, with an area of ​​2.3 mu. After the wheat matures in late May, grab the time to harvest in time. Use a combine harvester equipped with a cutting device to harvest w...

Embodiment 2

[0057] The light and simplified method of straw returning to the field and its effect of improving low-yield white soil

[0058] The method and implementation process of light and simplified straw returning to the field and its improvement and fertilization of low-yield white clay paddy fields are the same as in Example 1.

[0059] Taking Luotang Township, Changfeng County, Anhui Province as the test site, the soil is also a low-yield white clay paddy soil developed from Xiashu loess, and the rice variety Fengliangyou 6 was tested.

[0060] Table 2 shows that the application of the present invention—light and simplified straw returning to the field, the soil bulk density of the white soil tillage layer decreased by 9.0%, the total porosity increased by 5.28 percentage points, the absolute content of <0.001mm clay particles increased by 2.5 percentage points, and the sand-clay ratio decreased by 0.6 values . The pH of the white soil paddy field increased by 0.38 units from 6.1...

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PUM

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Abstract

The invention discloses a simplified straw-returning-to-field method applicable to clay paddy fields. The technique of wheat harvesting, straw smashing and directly returning to field, the technique of more nitrogen application for regulating carbon nitrogen ratio of straw, the technique of applying straw decomposition additives for quickening straw decomposition and degradation, the cultivation technique of subsoiling, burying and pressing the straw and improving the poor soil profile pattern of clay, the technique of field steeping, waterlogged compost and soil acidity regulation, the technique of soil preparation and optimum balanced rice fertilization and the like are integrated.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of crop straw returning to the field and soil improvement, in particular to a light and simplified straw returning method suitable for white soil paddy fields. Background technique [0002] China is a big agricultural country with a huge amount of agricultural products and agricultural by-products. Straw is the main by-product of agricultural production. Usually, crop straw production accounts for about 50% of the total crop biomass. Therefore, my country is also a major producer of various crop straws. It is estimated that my country's straw production is as high as 700 million tons per year, especially wheat, The straw of food crops such as rice and corn is huge, and the resources are extremely rich. [0003] If a huge amount of straw cannot be effectively utilized and digested, it is not only not a resource, but also becomes a social burden. In recent years, with the developm...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01C21/00
Inventor 李录久王家嘉吴萍萍黄厚宽樊洪金马连汪明云杨生华赵贤友张华郭海
Owner INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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