Saline-alkaline land biological improved fertilizer, preparation method thereof and application thereof in paper mulberry planting

Abstract

The invention discloses saline-alkaline land biological improved fertilizer, a preparation method thereof and application thereof in paper mulberry planting. The saline-alkaline land biological improved fertilizer is prepared from the following raw materials in parts by weight: 40 to 50 parts of cow dung, 20 to 30 parts of straws, 10 to 20 parts of bran, 30 to 40 parts of decomposed coal, 35 to 45 parts of desulphurization gypsum, 10 to 20 parts of palygorskite, 20 to 30 parts of maifanite, 15 to 25 parts of bentonite, 5 to 10 parts of manganese sand, 5 to 10 parts of silicon-iron ore powder, 4 to 8 parts of fungicide and 2 to 3 parts of buffer agent containing acid-base. The saline-alkaline land biological improved fertilizer disclosed by the invention contains necessary nutrition elements for crop growth, the problem of environment pollution caused by industrial and agricultural waste is solved, and meanwhile, damage to the environment caused by chemical fertilizer is avoided. The saline-alkaline land biological improved fertilizer disclosed by the invention has the characteristics of low improvement cost, high total nutrients and the like; the content of organic matters in improved soil is high, and the saline-alkaline land biological improved fertilizer has the effects of increasing the survival rate of crops and increasing the growth speed in application of mulberry planting.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a biological fertilizer mainly used in improvement and restoration of saline-alkali land and a preparation method thereof. Background technique [0002] At present, soil salinization has become one of the important environmental problems. my country's saline-alkali land is large and widely distributed, and a large amount of land has been abandoned. At the same time, we are also facing an irreversible situation of reducing cultivated land. Therefore, it is particularly important to protect and rationally develop land resources. So far, about 80% of saline soil in my country has not been developed and utilized, which has great potential. Coastal saline-alkali land is one of the five types of saline-alkali land in my country. The ecological restoration, development and utilization of it are of great significance to the sustainable development of coastal areas. important meaning. [0003] Excessive s...

AI Technical Summary

Problems solved by technology

[0010] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a saline-alkali land bio-improvement fertilizer and its preparation method and its application in mulberry plantation, which solves the problem of low soil organic matter content after saline-alkali land improvement in the prior art, The phenomenon of alkali return and the problem of low survival rate and growth rate of plant crops