Saline-alkali soil modifier and preparation method thereof

Abstract

The invention relates to a saline-alkali soil modifier and a preparation method thereof. The preparation method comprises the following steps: mixing 5-20 parts of humic acid, 15-30 parts of heavy calcium carbonate, 5-10 parts of solid sulphuric acid, 8-15 parts of farmyard manure, 3-7 parts of trace element compound and 1-3 parts of bone meal to pelletize; using 0.3-1 part of biological bacterium to pelletize; and mixing the obtained particles, adding 10-20 parts of nitrogen fertilizer, 5-14 parts of phosphatic fertilizer and 3-8 parts of potassic fertilizer to mix evenly and prepare the saline-alkali soil modifier. Pig manure and chicken manure are used as carrier to be combined with the saline-alkali soil modifier and prepare granule, the granule is applied 3cm and 10cm below seeds, thus the saline-alkali concentration around the root systems of the seeds can be reduced, the circular damage of the return of saline-alkali in deep underground on the root systems of crop can be suppressed, a good ecological environment can be created for the root systems of crop and the aims of strong root systems, more and stronger roots, luxuriant branches and leaves, high and stable yield can be realized. The technology can be used in the sustainable development of Chinese agriculture, thus the farmer with a limited land can have higher income.

Description

technical field [0001] The invention belongs to soil regulating substances and a preparation method, in particular to a saline-alkali soil improver and a preparation method. Background technique [0002] The nitrate alkali and soda salt in the saline-alkali cultivated soil can seriously damage the root system of crops. After the root system of crops is poisoned by saline-alkali, the root system will be poorly developed and prematurely senile, and it is also the main cause of various crop diseases. Grain production is low and the quality is poor. Due to the high salinity and high alkalinity in the soil, the organic matter in the soil is destroyed and leached, and the trace elements are extremely deficient. It is sticky when wet and hard when dry. There are often poisoning, root rot, and death. At this time, even if a large amount of fertilizer is invested, it cannot be absorbed and utilized by crops, resulting in the negative effect of high input and low output. The area o...

AI Technical Summary

Problems solved by technology

At this time, even if a large amount of fertilizer is put in, it cannot be absorbed and utilized by crops, resulting in the negative effect of high input and low output.