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Ridge-covering and trench-sowing cultivation and fertilization technology of dryland winter wheat

A technology for winter wheat, which is applied in the field of ridge-covered furrow sowing cultivation and fertilization of dryland wheat, can solve the problems of not being able to fully utilize precipitation resources, and achieve the effect of increasing the apparent recovery rate of nitrogen and increasing the number of grains per spike

Inactive Publication Date: 2010-08-18
NORTHWEST A & F UNIV
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dryland wheat ridge-covering furrow sowing cultivation and fertilization technology, which solves the technical problem that cannot fully utilize precipitation resources in the background technology

Method used

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Embodiment Construction

[0022] This work was carried out in Shaanxi, Gansu, and Shanxi in the northwest, and initially proposed the cultivation and fertilization techniques of ridge-covering furrow sowing of dryland wheat.

[0023] Therefore, we proposed the technique of ridge-covering furrow sowing. The experiments in 2008-2009 found that after the fertilization of the wheat before sowing, the ridges were formed with a width of 35-40 cm, and the ridges were covered with film. The distance between the two ridges, that is, the furrow width is 30-35cm. Sow wheat in the ditch with a row spacing of 15-20cm and a sowing rate of 150-225kg / ha. With the ridge width of 35cm; the distance between the two ridges, that is, the width of the ditch is reserved for 30cm; the sowing of wheat in the ditch with a row spacing of 20cm and a seeding rate of 150kg / ha is the best. During the whole growth period of wheat growth, the soil surface is kept covered in strips without removing the film; after the wheat is harves...

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Abstract

The invention relates to a ridge-covering and trench-sowing cultivation and fertilization technology of dryland winter wheat, which comprises the following steps of: preparing land, applying a base fertilizer, forming ridges with the widths of 35-40cm and covering a white plastic film on the ridges; preserving a ridge width of 30-35cm between two ridges; sowing wheat in grooves with a row distance of 15-20cm and a rowing amount of 150-225 kg / ha; uncovering the film during the total growth fertility period of the wheat so as to keep the strip film covering the soil surface; ditching and topdressing a nitrogen fertilizer of 30-45 kg / hm between wheat rows when the soil starts to defrost in spring and the wheat starts to turn green; milling in time after topdressing the fertilizer; keeping the plastic film covering the ridges after wheat is harvested; and returning all straws to be covered in grooves among the ridges for stimulating the rainfall infiltration in summer and lessening the water evaporation loss of the soil. The invention can stimulate the formation and the transferring of dry substances to grains, remarkably improves the ear grain number and the thousand grain weight and remarkably increases the wheat yield.

Description

technical field [0001] The invention relates to a dryland winter wheat cultivation and fertilization technology, in particular to a dryland wheat ridge-covered furrow sowing cultivation and fertilization technology. Background technique [0002] During the wheat growing season in drylands in Northwest China (mainly referring to Shaanxi, Gansu, and Shanxi), drought and lack of rainfall are the fundamental reasons for restricting high yields. [0003] However, for a long time, farmers in this area have long-term working habits: conventional flat farming, no mulching, and "one-shot" cultivation and fertilization techniques. These working habits lead to limited wheat production in this area and also restrict wheat production in this area. improvement. [0004] Analysis of the reasons: In the summer slack season before wheat sowing, this area fully receives summer (July-September) precipitation and stores it in the soil, so as to reduce surface evaporation as much as possible du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00
Inventor 王朝辉薛澄赵护兵李富翠
Owner NORTHWEST A & F UNIV
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