A kind of saline-alkali land soil maturation method using urea-formaldehyde resin soil subsoiling agent

Abstract

The invention provides a saline-alkali land soil ripening method using a urea resin soil deep loosening agent. The soil ripening method is characterized by including the steps: applying the soil deep loosening agent, wherein the soil deep loosening agent comprises, by weight, 14-16 parts of urea resin, 5-9 parts of calcium superphosphate, 10-15 parts of serpentine, 20-26 parts of biotite, 3-4 parts of bacillus coagulans liquid, 7-10 parts of turf soil, 12-14 parts of shrimp and crab shell powder, 4-6 parts of chitosan, 2-4 parts of calcium sulfate, 2-3 parts of citric acid and 2.5-4.5 parts of maltose, and 100 kg of soil deep loosening agent is applied per mu; performing mechanical deep loosening, wherein the soil loosening depth is 50 cm. Three months after saline-alkali land soil is ripened through the soil ripening method, the water-holding capacity reaches 45-48%, and the soil bulk density reaches 1.32-1.4 g / cm<3>.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali soil curing, and relates to a urea-formaldehyde resin soil subsoiling agent, in particular to a saline-alkali soil curing method using the urea-formaldehyde resin soil subsoiling agent. Background technique [0002] There are many saline-alkali lands in our country, and the utilization of saline-alkali lands has become an important research direction for economic development. [0003] For agricultural planting in saline-alkali land, the first thing to consider is soil maturation. The so-called soil maturation is the process of continuously improving the tillability and fertility of the soil through various technical measures, that is, the process of turning raw soil into mature soil. The mature soil has deep soil layer, high organic matter content, good soil structure, coordinated fertility factors of water, fertilizer, air and heat, vigorous microbial activities, and strong ability to supp...

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Problems solved by technology

However, the disadvantage of using compound fertilizer is that the fertilizer effect is too large, and the crops will die due to excessive fertilizer effect.

Moreover, compound fertilizers have strict requirements on geology, soil and climate, and do not use the promotion and use of saline-alkali land.

[0005] The soil maturation method in the prior art has the following defects and deficiencies: the soil maturation effect in saline-alkali land is not ideal, the soil water holding capacity in saline-alkali land is low, and the soil bulk is large; the total porosity of the soil is relatively small; the soil maturation method in the prior art is difficult to quickly Improve soil fertility while reducing pH in saline-alkali soils

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