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Winter wheat null line straw mulching method for water saving and soil moisture conservation

A winter wheat and straw technology is applied to the field of water saving and moisture conservation by covering winter wheat with dangling straw. Effect

Inactive Publication Date: 2017-05-17
WHEAT RES INST OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, straw mulching is not stable in increasing winter wheat yield.
In particular, under the conventional planting mode, covering each row of winter wheat, although it plays a role in water retention, hinders the development of wheat populations and causes adverse effects such as soil airtightness.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] After the corn is mechanically harvested, use a pulverizer to crush the corn stalks until the length of the stalks is 3-50 cm, preferably 8-15 cm, and place the crushed stalks on the ridges on both sides to avoid affecting the plowing of the land. Apply base fertilizer, urea 15kg / mu, potassium dihydrogen phosphate 10kg / mu. Plow the field so that the fertilizer is evenly mixed into the 0-20cm soil layer. For sowing, a 2B-4 type seeder is used to block every other hole on the seeder, and at the same time increase the amount of seed output from a single hole to 1.3-1.7 times the conventional one, preferably 1.5 times, so that the sowing area forms a sowing double. The layout of one row is empty, and the row spacing of each row is 18-25cm, preferably 20cm; when the winter wheat reaches the three-leaf one-heart stage for two weeks, the crushed straw on both sides of the ridge is covered on the empty row, and the straw is covered. The thickness is 2-5cm, which can not only p...

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Abstract

The invention discloses a winter wheat null line straw mulching method for water saving and soil moisture conservation and belongs to the technical field of wheat planting. The problems existing in the prior art are overcome. According to the adopted scheme, the winter wheat null line straw mulching method for water saving and soil moisture conservation comprises a winter wheat sowing step that one line is reserved every two lines to serve as a preserved blank belt, the sowing weight in planted wheat lines is 1.3-1.7 times of the normal weight; a straw mulching step that smashed straw is put in the reserved blank belts two weeks before and after a three-leaf and one-core stage of winter wheat, wherein the straw mulching thickness is 2-5 cm. The winter wheat null line straw mulching method can be widely applied to the field of wheat planting.

Description

technical field [0001] The invention discloses a water-saving and moisture-conserving method for covering winter wheat stalks and belongs to the technical field of winter wheat planting. Background technique [0002] Two crops of summer corn and winter wheat in one year are the main planting patterns in arid areas such as North China, Henan, Shanxi, Shaanxi, Gansu, especially in Shanxi and southern Shanxi. The time interval between harvesting and planting of the two crops is short, and the annual water consumption in the continuous planting mode of the two crops is about 850mm, while the annual rainfall in the Jinnan area of ​​Shanxi is 450-500mm, and the rainfall is mainly concentrated in the growth period of corn from July to September, wheat During the growth period, from October to June of the following year, the rainfall is only 160-200mm. Insufficient rainfall is the key factor restricting winter wheat production in this area. How to make full use of natural precipit...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 闫秋艳董飞杨峰鲁晋秀闫翠萍李峰党建友张定一王苗连晋
Owner WHEAT RES INST OF AGRI SCI
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