Severe soda saline-alkaline soil dry farming agricultural soil conditioner

Abstract

The invention relates to a soil conditioner, and concretely relates to a severe soda saline-alkaline soil dry farming agricultural soil conditioner. The invention aims to solve the technical problemsof great increase of the salt content of a soil solution, severe saline-alkali stress to crop seed germination and crop root systems, insufficient durability of organic manure and fast degradation caused by an improver used in the existing method. The severe soda saline-alkaline soil dry farming agricultural soil conditioner is prepared from biomass charcoal, sheep manure, humic acid and gypsum inparts by weight. The soil improvement effect is remarkable, long-term improvement of soil structure by biomass charcoal, quick-acting improvement of soil structure by sheep manure, organic matter increase and pH value reduction by humic acid and salt elimination effect of a proper amount of gypsum are taken into consideration, short-term quick-acting and long-term efficient combination of soil improvement is realized through formula matching, and the effect can last for ten years or more after the soil conditioner is applied once. By adopting the soil conditioner disclosed by the invention, the pH value of soil is reduced to 10.25-9.69 from 10.49-10.05, the volume weight is reduced by 1.12-1.42%, and the water conductivity is improved by 2.58-3.37%. The invention belongs to the field of soil conditioners.

Description

technical field [0001] The present invention relates to a soil conditioner. Background technique [0002] In the western part of the Songnen Plain, the granary in Northeast my country, there are about 3.73 million ha of saline-alkali land, more than a quarter of which is severe soda saline-alkali land, and the soil shows "three highs and two lows" (high pH, ​​high soda content, exchange High sodium content, low permeability, and low nutrient availability), it is difficult to develop and utilize. Although scientific research and production practices in recent years have proved that the development of paddy field agriculture after soil improvement is an effective way to develop and utilize severe soda saline-alkali land in this region, considering that paddy field agriculture consumes a lot of water, and the region has arid-semi-arid climate characteristics, the development of Dry farming with low water consumption meets the requirements of sustainable development in the regio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems that the improvement agent used in the existing method causes the salinity content of the soil solution to rise sharply, cause serious saline-alkali stress to the germination of crop seeds and crop root system, and the durability of organic manure is not enough and the degradation is fast. A kind of heavy soda saline-alkali land dry farming agricultural soil improver