No-tillage water replenishing sowing method based on condition of total straw coverage

A technology for straw and water replenishment, applied in grain cultivation and other directions, can solve the problems affecting seedling emergence, low temperature during sowing, lack of supporting water replenishment irrigation technology, etc., to achieve the effect of improving utilization efficiency, reducing soil wind erosion, and ensuring the quality of seedlings.

Inactive Publication Date: 2019-04-30
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Straw mulching and returning to the field has a certain moisture conservation effect, but it is easy to cause low temperature during sowing, which affects seedling emergence; and in the dry season, lack of supporting water replenishment irrigation technology seriously affects seedling emergence

Method used

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  • No-tillage water replenishing sowing method based on condition of total straw coverage

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Embodiment 1

[0024] A no-tillage water replenishment sowing method based on the condition of full straw coverage, in areas with rainfall below 450 mm and in windy sandy soil areas or severe wind erosion areas, the specific steps are as follows:

[0025] Step 1. After the corn enters the mature stage, use a large corn harvester to harvest, and at the same time crush the corn stalks. The length of the crushed stalks is 10-20 cm, and spread evenly on the ground;

[0026] Step 2. During the suitable sowing period from late April to early May of the next spring, clean up the 40 cm wide sowing belt 1 from the straw covering the surface of the sowing row to make it ready for sowing. At the same time, the straw is raised to 80-90 cm in the straw stacking area 2; figure 1 As shown, the sowing belt 1 is adjacent to the straw storage area 2; according to the method of this embodiment, when the first year the sowing belt 1 and the straw storage area 2 are cleaned up, according to the following figure...

Embodiment 2

[0031] A no-tillage water replenishment sowing method based on the condition of full straw coverage, in areas with rainfall below 450 mm and in windy sandy soil areas or severe wind erosion areas, the specific steps are as follows:

[0032] Step 1. After the corn enters the mature stage, use a large corn harvester to harvest, and at the same time crush the corn stalks. The length of the crushed stalks is 10-20 cm, and spread evenly on the ground;

[0033] Step 2. During the suitable sowing period from late April to early May of the next spring, clear the 40 cm wide sowing belt from the straw covering the surface of the sowing row to make it ready for sowing. In the straw storage area;

[0034]Step 3: Use a no-tillage water replenishment seeder to complete sowing, water replenishment, fertilization, and suppression at one time on the cleaned sowing belt; this no-tillage water replenishment seeder is a technical solution disclosed in Chinese Patent Application No.: 201810105063....

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Abstract

The invention discloses a no-tillage water replenishing sowing method based on a condition of total straw coverage. In areas of rainfall below 450 mm and in areas of aeolian sandy soil or severe areasof wind erosion, the method includes the following specific steps: after corn enters a stage of complete ripeness, a large-scale corn harvester is employed for harvesting, and corn stalk is simultaneously pulverized and uniformly spread on the earth surface; during suitable sowing time from the last ten days of April to the first ten days of May of the following spring, straw covering the earth surface of sowing rows is cleaned out a sowing zone with the width of 40 cm to reach a to-be-sowed state; sowing, water replenishing, fertilizer application, and pressing are completed once on a cleaned sowing zone by employing a no-tillage water replenishing sowing machine; and after seedlings emerge, a herbicide is sprayed for weeding; and when the corn has 3-4 expansion leaves, soil under corn seedlings is loosened. Compared with the prior art, high-quality sowing can be achieved under the condition that the straw totally covers and is returned to the field, a sufficient water source is provided for seed germination according to a soil moisture state, the quality of a group seedling stage is ensured, and the usage amount of the herbicide is reduced.

Description

technical field [0001] The invention relates to the technical field of corn sowing, in particular to a no-tillage water replenishment sowing method based on the condition of full straw coverage. Background technique [0002] Corn is the largest crop in the world and also the largest crop in my country. Northeast my country is one of the main corn production areas in China. The total annual corn stalk resources amount to 170 million tons. Due to the unreasonable utilization of straw resources, more than 50% of the corn stalks in Northeast China are discarded and burned, causing air pollution and ecological environment. Problems such as deterioration are becoming more and more obvious. At the same time, the black soil in Northeast China has been severely degraded. At present, some black soil layers have dropped to about 25cm, and the organic matter content has dropped to 2.0%. The fertility of black soil needs to be improved urgently. Straw returning is the main measure to fer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20
CPCA01G22/20
Inventor 王立春蔡红光任军刘剑钊曹铁华梁尧陈宝玉袁静超李瑞平秦裕波张洪喜孙芸芸孙海全闫伟平靳帅卢景忠
Owner JILIN ACAD OF AGRI SCI
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