A kind of gel type saline soil conditioning fertilizer and preparation method thereof

Abstract

The invention relates to a gel type saline soil conditioning fertilizer. The fertilizer comprises raw materials in parts by weight as follows: 15-25 parts of cellulose derivatives, 20-30 parts of amino acid, 2-5 parts of cyclodextrin, 0.1-0.5 part of citric acid powder, 10-14 parts of a nitrogenous fertilizer, 20-24 parts of a phosphate fertilizer and 12-16 parts of a potash fertilizer. The gel type saline soil conditioning fertilizer has multiple effects, the used cellulose derivatives and the used cyclodextrin are non-toxic, environment-friendly and degradable, and the fertilizer can form stable hydrogel after being applied to soil and absorbing a large amount of water, so that the water absorbing capacity of the soil can be improved, meanwhile, the fertilizer has the better water retention capacity, evaporation of moisture in the soil can be slowed down, the stored moisture is released slowly, the growth of crops is promoted, and the pH value of the saline soil can be reduced; the cellulose derivatives can adsorb base ions harmful to the crops in the soil, can stimulate growth of roots of the crops, are used as a coating material of the fertilizer to enable the fertilizer to be released slowly in the soil.

Description

technical field [0001] The invention relates to a gel-type fertilizer, in particular to a fertilizer capable of reducing the salt damage of saline soil, increasing the organic matter content of the saline soil and simultaneously having the function of slow dissolution and a preparation method thereof, belonging to the technical field of agricultural fertilizer manufacturing. Background technique [0002] Saline soil refers to the type of soil with a salt content of 0.1%-0.2% or more or an alkalinity of 15%-20% or more, which is harmful to the normal growth of crops. According to the degree of damage to plants, the saline soil is divided into three indicators: mild, moderate and severe: among them, the mild saline soil reduces the crop yield by 10-20%, and the moderate saline soil reduces the crop yield by 20-50%. Severe saline soil, which reduces crop yield by 50-80% is severe saline soil. my country's saline-alkali land is mainly distributed in the inland arid and semi-ari...

AI Technical Summary

Problems solved by technology

[0003] At present, the improvement of saline-alkali land at home and abroad mostly uses irrigation to wash salt, plant salt-tolerant crops, engineering measures, etc., which have the defects of high cost and single function, and cannot fundamentally solve the diversification problem of high salinity and poor nutrients in saline-alkali land in my country

Images