Building method of salinity-alkalinity low-production cropland fertile cultivation layer

Abstract

The invention relates to a building method of a salinity-alkalinity low-production cropland fertile cultivation layer. The method comprises the following steps of digging furrows on a cultivation layer, wherein the bottom end of the furrows is connected with a plough bottom layer; filling soil improving agents into the furrows; laying surface soil onto the surface of the soil improving agents, wherein the top surface of the surface soil is aligned with the top end of the furrows, and the surface soil is cultivation layer soil around the furrows; planting plants on the surface soil. Compared with the prior art, the building method has the advantages that the operability is high; the building speed is high; the fast and effective salt elimination on the salinity-alkalinity low-production cropland cultivation layer can be realized in a short period; the salt elimination effect is obvious; the cropland soil fertility and the soil quality are improved; the growth condition of crops is good;the yield and the quality are greatly improved.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for constructing a fertile plow layer in arable land with saline-alkali barriers. Background technique [0002] Soil is the place where fertilizer nutrients are converted, migrated, and absorbed by crops. Soil factors (obstacles and fertility factors) affect the ability of soil to store and stably supply nutrients on the one hand; Efficient recycling in crop systems. Saline-alkali soil is one of the most important barrier soil types in my country. The most important feature of saline-alkali soil is that it contains more water-soluble salt and alkali. Due to the large salt and alkali content, the humic substances in the soil are leached. The soil structure is destroyed, showing stickiness when wet, hard when dry, poor air permeability and water permeability, and severe crop wilting, poisoning and even death. Therefore, saline-alkali soil is not only strongly str...

AI Technical Summary

Problems solved by technology

Treatment of saline-alkali land through chemical improvement methods, such as the application of organic fertilizers, bacterial residues and chemical amendments (straw, organic fertilizers, zeolite, lignite, phosphate rock powder), etc., has a positive effect on the reduction of saline-alkali obstacle factors and the improvement of soil fertility. effect, but the disadvantage is that the amount of improver is large, and the cost of improvement is relatively high, such as: the Chinese invention patent "A compound fertilizer for improving sandy saline-alkali land and its preparation method" with application number CN201711236418.2 (publication number CN108129227A)

As can be seen from the above, the existing improvement methods for saline-alkali land still need to be improved

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