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Method for improving sandy soil without tillage with straw in cooperation with biochar

A biochar and straw technology, which is applied in the fields of land preparation methods, applications, agricultural machinery and implements, to achieve the effects of increasing crop yield, improving soil bulk density, and improving physical properties

Inactive Publication Date: 2016-05-04
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still controversies about the impact of full no-tillage on the physical and chemical properties of soil and crop yield in low- and medium-yielding fields in the region.

Method used

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  • Method for improving sandy soil without tillage with straw in cooperation with biochar
  • Method for improving sandy soil without tillage with straw in cooperation with biochar
  • Method for improving sandy soil without tillage with straw in cooperation with biochar

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Embodiment

[0027] In this example (NT+1 / 2B+1 / 2S), the method of no-tillage improvement of sandy fluvo-aquic soil with straw and biochar, the steps are as follows:

[0028] (1) After the corn is harvested, half of the corn stalks are removed, and half of the corn stalks are cut into 4-6cm pieces to obtain corn stalks. Use a ditch opener to directly open a 5cm deep small ditch to sow wheat, and then spread the corn stalks evenly Biochar with the same amount of carbon as crushed corn stalks and crushed corn stalks;

[0029] (2) After the wheat is harvested, half of the wheat straw is removed, half of the wheat straw is cut into 4-6cm pieces to obtain wheat straw, and then evenly spread biochar with the same amount of carbon as wheat straw and wheat straw, and sow sow corn directly;

[0030] (3) Repeat steps (1) and (2) three times.

[0031] It has been carried out at the North China Wheat and Corn Rotation Experimental Station in the Airport District of Xinzheng City, Henan Province since...

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Abstract

The invention discloses a method for improving sandy soil without tillage with straw in cooperation with biochar. The method comprises the steps that firstly, after corn is harvested, half of corn straw by mass is removed, the other half of the corn straw by mass is chopped into small sections with the length ranging from 4 cm to 6 cm to obtain corn straw fragments, small furrows with the depth being 5 cm are directly formed through a furrower for sowing wheat, and then the corn straw fragments and biochar with the carbon amount equal to that of the corn straw fragments are evenly spread; secondly, after wheat is harvested, half of wheat straw by mass is removed, the other half of the wheat straw by mass is chopped into small sections with the length ranging from 4 cm to 6 cm to obtain wheat straw fragments, the wheat straw fragments and biochar with the carbon amount equal to that of the wheat straw fragments are evenly spread, and corn is directly sown through a seeder; thirdly, the first step and the second step are repeated three times. According to the method for improving sandy soil without tillage with straw in cooperation with biochar, the total no-tillage mode is adopted, half full-dose straw and half biochar with the equal carbon amount are used for covering after seeding, and through improvement tests of six turns in three years, the physical and chemical structures of sandy soil are effectively improved, and the nutrient of sandy soil and the crop yield are increased.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a method for no-tillage improvement of sandy fluvo-aquic soil with straw and biochar. Background technique [0002] The sandy area of ​​the Huanghuai Plain is 203.1×10 4 hm 2 , is the main low-yielding soil type in the Huanghuai Plain. The sandy fluvo-aquic soil has light texture and poor fertilizer and water retention capacity, which seriously affects the water and fertilizer use efficiency, which in turn affects the high yield and high efficiency of wheat / corn. Therefore, exploring suitable improvement methods to increase soil nutrient content and crop yield in sandy fluvo-aquic soil can provide theoretical and practical significance for the improvement of sandy-aquic soil. [0003] Straw returning to the field is a measure of fertilizing soil fertility and increasing production that is generally valued in the world today. It can increase fertilizer and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 李培培韩燕来姜瑛汪强
Owner HENAN AGRICULTURAL UNIVERSITY
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