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
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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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