Method for planting corn in saline-alkaline soil

Abstract

The invention discloses a method for planting corn in saline-alkaline soil, comprising the steps of deeply turning over, irrigating for washing, making ditches, covering with organic base fertilizer and inorganic base fertilizer, shallowly turning cover, making drain ditches, sowing corn, irrigating for washing once a month in the growth stage of corn, and applying a nutrient solution after each irrigation for washing until the corn is mature, wherein the organic base fertilizer is made by mixing biogas slurry, crop stalks, methyl cellulose and soap powder at a mass ratio of (300-500):(1000-2000):(0.5-1):(0.5-1), and the nutrient solution is made by mixing biogas slurry and crop stalks at a mass ratio of (1000-2000):(300-500), fermenting at 30-35 DEG C for 10-15 days, and filtering to obtain filtrate. By increasing the amount of organic fertilizer to be applied herein, the amount of the inorganic fertilizer to be applied is decreased; suitable soil improving measures are taken, less salt is accumulated during corn planting, and yield of corn per mu is increased. In addition, both the organic fertilizer and nutrient solution used herein are prepared mainly from stalks, returning stalks to field is achieved, and utilization rate of stalks can be increased.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation methods, and in particular relates to a corn cultivation method in saline-alkali land. Background technique [0002] Saline-alkali soil contains a large amount of carbonate. The formation factors of saline-alkali land include climatic conditions, geographical conditions, farming management, etc. The formation of saline-alkali land will affect the normal growth of crops. When the soil salinization is serious, plants will not be able to survive. [0003] Corn is one of the main cultivated plants in my country. Generally, the yield of corn per mu can reach more than 500 kg, but the yield of corn planted in most saline-alkali soils is less than 400 kg, which greatly reduces the land utilization rate. In the process of traditional corn planting, chemical fertilizers are usually used. Although chemical fertilizers have quick effects, due to the poor water and fertilizer retention capacity of sa...

AI Technical Summary

Problems solved by technology

[0002] Saline-alkali soil contains a large amount of carbonate. The formation factors of saline-alkali land include climatic conditions, geographical conditions, farming management, etc. The formation of saline-alkali land will affect the normal growth of crops. When the soil salinization is serious, plants will not be able to survive.

[0003] Corn is one of the main cultivated plants in my country. Generally, the yield of corn per mu can reach more than 500 kg, but the yield of corn planted in most saline-alkali soils is less than 400 kg, which greatly reduces the land utilization rate.

In the process of traditional corn planting, chemical fertilizers are usually used. Although chemical fertilizers have quick results, due to the poor water and fertilizer retention capacity of saline-alkali land, the fertilizer effect time of chemical fertilizers is reduced and the utilization rate of fertilizers is reduced.