Improved fertilizer for saline and alkaline land and preparation method of improved fertilizer

Abstract

The invention discloses an improved fertilizer for saline and alkaline land and a preparation method of the improved fertilizer. The improved fertilizer for the saline and alkaline land is prepared from the following raw materials in parts by weight: 25-28 parts of maleic anhydride, 15-20 parts of citric acid, 20-30 parts of calcium superphosphate, 10-12 parts of a sodium ion adsorbent, 2-4 parts of a microbial agent, 25-32 parts of fulvic acid, 15-20 parts of a trace element fertilizer, 30-38 parts of a chicken manure fermentation fertilizer, 20-35 parts of peat, 3-5 parts of perlite, 5-8 parts of vermiculite and 20-25 parts of smashed straw particles. The invention further provides the preparation method of the improved fertilizer for the saline and alkaline land. According to the improved fertilizer for the saline and alkaline land, various soil improving measures can be synthesized, effects of reducing salt and alkali for the saline and alkaline land are good, the water content of the soil is high, the water retention property and the fertilizer retention property of the soil are good, besides, the survival rate of planted plants is high, and virtuous cycle of the soil of the saline and alkaline land is realized.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali land improvement, and in particular relates to an improved fertilizer for saline-alkali land and a preparation method thereof. Background technique [0002] In saline-alkali soil areas, due to the high salinity and high alkalinity in the soil, the soil organic matter is destroyed and leached, and the trace elements are extremely deficient. It is sticky when wet and hard when dry. , The roots of plants planted in this area often have poisoning, rotten roots, and death. [0003] Applying improved fertilizers to saline-alkali land is a means of improving saline-alkali land, but the existing improved fertilizers have the following defects when improving saline-alkali land: (1) in the improved fertilizer, there is a lack of trace elements, which cannot meet the growth needs of plants in saline-alkali land; The reduction degree of sodium ion content is not ideal; (3) the water content of the impr...

AI Technical Summary

Problems solved by technology

[0003] Applying improved fertilizers to saline-alkali land is a means of improving saline-alkali land, but the existing improved fertilizers have the following defects when improving saline-alkali land: (1) in the improved fertilizer, there is a lack of trace elements, which cannot meet the growth needs of plants in saline-alkali land; The degree of reduction of sodium ion content is not ideal; (3) the water content of the improved soil is low; (4) the survival rate of plants planted in the improved soil is low