A method for improving saline-alkali land and increasing summer maize yield through plant symbiosis

Abstract

The invention discloses a method for increasing output of summer corn by improving saline-alkali land based on plant symbiotic relationship, which belongs to the technical field of agriculture cultivation. The method comprises: firstly planting wheat on the saline-alkali land; after the period of seedling establishment of the wheat in the second year, sowing common seepweed herb of saline land in the wheat field, fertilizing and irrigating the wheat land; and establishing symbiotic relationship between the wheat and the common seepweed herb. The growth amount of the common seepweed herb is greatly increased; salt in the saline-alkali land is effectively moved out through salt absorption effect of large amount of the common seepweed herb; the salt content in the land is reduced and the water content in the land is stabilized, thus providing a good environment for the growth of corn; during the harvesting period of the wheat, the wheat and the common seepweed herb are harvested and moved out; after that, corn is planted and the corn is fertilized with few mount and multiple times; nitrogen phosphorus fertilizer is more applied to the corn, thus ensuring the requirement of the corn for nitrogen fertilizer; and through planting management, significantly increased output of the corn is finally realized. According to the invention, by improving the saline-alkali land to increase the output of the summer corn, the value of agricultural production is increased; and the harvesting amount of the common seepweed herb is increased, thus the source of increasing income of a farmer is broadened.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting and cultivation, and in particular relates to a method for improving saline-alkali land and increasing summer corn yield through plant symbiosis. Background technique [0002] At present, there are about 2.7×10 saline-alkali land in my country 6 hm 2 , of which the cultivated land is 6×10 6 hm 2 ,Saline wasteland 2.1×10 6 hm 2 , is the most potential reserve cultivated land resource in my country. Its development and utilization have important strategic significance for ensuring food security, developing biomass and carbon sinks. However, the yield of summer corn planted in saline-alkali land is low, and increasing crop yield in saline-alkali land has become the first choice for using saline-alkali land. an important subject. [0003] The saline-alkali land in the coastal area is one of the important types of saline-alkali land in my country. The coastal plain on the west coast ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of difficulty in increasing the yield of summer maize in saline-alkali land, the present invention provides a method for improving the yield of summer maize in saline-alkali land through plant symbiosis. The saline-alkali land is then planted with summer corn, the growth environment of summer corn has been improved, and the yield of summer corn has increased significantly

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