Saline alkali soil conditioner, preparation method and application method thereof

Abstract

The invention discloses a saline alkali soil conditioner, a preparation method and an application method thereof. The saline alkali soil conditioner is prepared by mixing calcium powder, monoammonium phosphate, humic acid and fermented organic fertilizer, wherein the mass ratio of the components is 1: 1: 1: 1. The preparation method for the saline alkali soil conditioner comprises the following steps that: the fermented organic fertilizer, namely amorphous powder formed by chicken manure which is subjected to compost fermentation for 10 to 20 days is crushed and passes through a 100-mesh sieve; the humic acid, namely lignite powder and the sieved fermented organic fertilizer are loaded into a closed mixer for complete mixing according to the mass ratio of 1: 1; and the calcium powder, namely shell powder passes through the 100-mesh sieve and is mixed with monoammonium phosphate powder according to the mass ratio of 1: 1, and then the mixture is mixed with powder obtained by premixing the humic acid and the fermented organic fertilizer according to the mass ratio of 1: 1 according to the proportion of 1: 1. 2 to 4 tons of the conditioner are added into each mu, which ensures that the pH value of the prior saline alkali soil is reduced to be between 7.2 and 7.6; at the same time, the volume weight of the soil gets smaller, the cation exchange capacity is increased, organic matter is increased, the variety of microorganisms is increased, and the vegetation is restored. Crops such as purple medic and corn can be planted at the year when the soil is treated. The conditioner has the advantages of low cost as well as simple and convenient use method.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a saline-alkali soil conditioner and its preparation and application method. Background technique [0002] The transformation of saline-alkali soil has always been an important issue in the development of agricultural production. There have been many studies at home and abroad, but most of them are single compounds such as calcium sulfate and aluminum sulfate, or inorganic acids, etc., so the pH value and cations of saline-alkali soils are only adjusted for a short time, and they have not been used from the perspective of ecological restoration. The saline-alkali soil ecosystem is completely restored. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a soil conditioner for restoring saline-alkali soil ecology and a preparation method thereof. [0004] The saline-alkali soil conditioner of the present in...

AI Technical Summary

Problems solved by technology

There have been many studies at home and abroad, but most of them are single compounds such as calcium sulfate and aluminum sulfate, or inorganic acids, etc., so the pH value and cations of saline-alkali soils are only adjusted for a short time, and they have not been used from the perspective of ecological restoration. Saline-alkali soil ecosystem complete restoration