Nutritive soil improver special for salt alkali land and its processing method

Abstract

This invention relates to a soil conditioner, especial a nutritional soil conditioner to be used specially for saline lands. Its components and their weight percentage is that desulfuration offal 30-50%, accelerator 10-15%, straw powder 10-30%, furfurol dregs 10-20% and organic fertile 10-12%. First straw powder and organic fertile are shattered by crusher with its grade size less than 2mm, and then mixed homogeneously with desulfuration offal, furfurol dregs, accelerator, then conducted magnetization with magnetizing machine and dried by drying machine, and then sizing and packaging. This invention can improve physical and chemical characteristic of the soil, inhibit the increase of salt, neutralize alky of the soil simultaneously, and can also provide affluent nutrient for crops.

Description

technical field [0001] The invention relates to a soil improver, in particular to a special nutritional soil improver for saline-alkali land and a processing method thereof. Background technique [0002] With the wide application of soil conditioners in agriculture and ecological environment, there are more and more new products of soil conditioners at home and abroad. Especially in recent years, the emergence of high-efficiency and low-consumption soil improvers, the continuous improvement of use methods and the gradual reduction of costs have made it possible for soil improvers to be widely used in large fields; however, the traditional method of soil improvement in saline-alkali land mainly uses gypsum replacement. Sodium in the soil, this method is relatively simple. The title of invention disclosed in CN1377936A is: Utilize waste gypsum board to produce the method of saline-alkali soil improver and its product and application, and the title of invention disclosed in CN...

AI Technical Summary

Problems solved by technology

Especially in recent years, the emergence of high-efficiency and low-consumption soil improvers, the continuous improvement of use methods and the gradual reduction of costs have made it possible for soil improvers to be widely used in large fields; however, the traditional method of soil improvement in saline-alkali land mainly uses gypsum replacement. Sodium in the soil, this method is relatively simple

The title of invention disclosed in CN1377936A is: Utilize waste gypsum board to produce the method of saline-alkali soil improver and its product and application, and the title of invention disclosed in CN1487052A is: saline-alkali improver, which all replaces the exchangeability in the soil with calcium sulfate. Sodium, because the use of calcium sulfate increases the salinity of the soil, it needs to be rinsed, so the use of this kind of soil improver needs to be used in conjunction with irrigation, because another main reason why saline-alkali land affects crops is that the soil is easy to harden, and pure chemical The improvement method not only cannot improve the compaction, but also requires more irrigation and drainage, which is likely to cause the soil bulk density to increase rapidly with the increase of irrigation times, resulting in more compacted soil