Full-membrane coverage planting method of corns on saline-alkaline soil in inland dry and cold regions

A planting method and technology for saline-alkali land, which are applied in the fields of soil improvement and crop planting, can solve the problems of low yield of corn in saline-alkali land, difficulty in maturation, etc., and achieve the effects of high temperature, solving low temperature and drought, and increasing yield

Active Publication Date: 2015-04-08
INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
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Problems solved by technology

[0009] The purpose of the present invention is to solve the problem of low corn yield and difficulty in maturation in saline-alkali land in inland arid and cool areas, and to provide a method for planting corn in saline-alkali land in inland arid and cool areas.

Method used

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  • Full-membrane coverage planting method of corns on saline-alkaline soil in inland dry and cold regions

Examples

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Effect test

Embodiment 1

[0031] In this example, a demonstration test of the corn planting method of first ridge mulching and then selective sowing was carried out in the saline-alkali wasteland in the ancient town of Shanyin County, Shuozhou City, Shanxi Province. At the same time, conventional planting was used as a control.

[0032] The salinity-alkali improvement demonstration area in Shanyin Gucheng Town, Shuozhou City, Shanxi Province is located at the southwest edge of the Datong Basin in Shanxi Province. The terrain is gentle and low-lying. The soil is mainly soda salinized fluvo-aquic soil. , pH9.68, total soil salinity 0.6%, alkalinity ESP 45.1%, soil bulk density 1.73g / cm 3 , a very severe soda saline-alkali land.

[0033] In this demonstration area, the following corn full-film mulching planting method is carried out. The specific operation steps are as follows:

[0034] 1. Chemical improvement in autumn: After flattening the land, start a 30-40cm high ridge around it, spread 2000 kg / mu ...

Embodiment 2

[0040]In this example, a demonstration experiment of corn planting in the one-time sowing method of full film covering was carried out in the saline-alkali land of Lanyubao Village, Sansanlipu Township, Tianzhen County, Datong City, Shanxi Province. At the same time, conventional planting was used as a control.

[0041] The demonstration site, Lanyubao Village, Sansanlipu Township, is located in the Tianyang Basin of Datong. According to the Shanxi Soil Records of the Second National Soil Survey, it belongs to extremely severe soda saline-alkali land. The pH of the soil survey before sowing was 8.9, the total salt content was 0.86%, and the alkalization degree was 21.4%. Water-soluble sodium ions account for 30.3% of cations, and bicarbonate 20.4%, which belongs to moderate soda saline-alkali land.

[0042] The specific operation steps for the full-film mulching planting of corn in this demonstration area are as follows:

[0043] 1. Chemical improvement: After flattening the...

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Abstract

The invention discloses a full-membrane coverage planting method of corns on the saline-alkaline soil in inland dry and cold regions. The method includes chemically improving the soil in autumn, dressing base fertilizer before sowing, tilling shallow for preparing for planting, digging large and small ridges on the soil, covering a full membrane, and sowing according to the soil moisture content or sowing in a soil moisture preservation stage. The problems that in the inland dry and cold regions, the soil is alkaline, dry in the early spring, low in temperature, poor in emergence rate and short in frost-free season and corns are hard to be ripe are solved, salt in the tilled regions can be reduced, emergence rate is increased, crop maturation is accelerated and yield is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of soil improvement and crop planting, and relates to a method for planting crops in saline-alkali land, in particular to a method for planting corn in saline-alkali land in inland arid and cool areas. Background technique [0002] China has 100 million hm 2 Saline-alkali land is mostly distributed in arid and semi-arid regions such as North China, Northwest and Northeast China, mainly including Xinjiang, Qinghai, Gansu, Ningxia, Shaanxi, Inner Mongolia, and northeastern Shanxi. [0003] The saline-alkali land in the above-mentioned inland arid and cool areas is mostly soda saline-alkali, with high salinity and strong alkalinity. The salinity of plow layer soil is generally 3-5g / kg, some as high as 10g / kg; the pH value is generally 8.3-9.2, some as high as 10; 70%. Because the soil colloid absorbs more sodium ions, the ventilation and water permeability are poor, the soil quality is heavy and hardened, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G13/02A01B79/02
CPCA01B79/02A01G13/0256A01G22/00Y02A40/28
Inventor 李磊张强王斌冯悦晨聂督孙捷黄高鉴闫敏温东
Owner INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
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