Compound organic fertilizer used for rice planting and having high slow release property as well as preparation method of compound organic fertilizer

Abstract

The invention discloses compound organic fertilizer used for rice planting and having the high slow release property. The compound organic fertilizer is prepared from raw materials as follows: ammonium nitrate, monopotassium phosphate, urea, urea phosphate, calcium superphosphate, ammonium dihydrogen phosphate, potassium sulfate, magnesium sulfate, potassium nitrate, amino sodium dicarboxylate, trichoderma, yeast powder, a straw fermentation agent, cellulase, potassium mineral powder, mica powder, chitin, talc, turf powder, fly ash, conch powder, furfural residues, rice hull powder, poultry manure, corn straw, rapeseed cakes, dolomite, diatomite, calcite, humic acid, lignin, sodium bentonite, EDTA chelate, amino acid chelate, dicyandiamide, phosphoryl triamide, a slow release agent and a soil conditioning agent. The invention further provides a preparation method of the s compound organic fertilizer used for rice planting and having the high slow release property. The compound organic fertilizer has excellent slow release property and can effectively the yield and quality of crops.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a high slow-release compound organic fertilizer for rice planting and a preparation method thereof. Background technique [0002] Excessive nitrogen release at the initial stage of fertilizer application will result in volatilization and leaching, which will not only cause losses, but also be detrimental to the growth of crop seedlings. Many nitrogen fertilizers have such problems, but most research data only focus on the regulation of excessive nitrogen release from fertilizers and inhibition, while ignoring that most organic and inorganic compound fertilizers also have such problems. Especially when the compound fertilizer made of fermented organic matter and inorganic nitrogen fertilizer is damp or applied to the soil, urine enzyme will quickly become active and release ammonia nitrogen. At the same time, the action of digestive bacteria will also convert nitrogen to nitra...

AI Technical Summary

Problems solved by technology

[0002] Excessive nitrogen release at the initial stage of fertilizer application will result in volatilization and leaching, which will not only cause losses, but also be detrimental to the growth of crops at the seedling stage. Many nitrogen fertilizers have such problems, but most research data only focus on the regulation of excessive nitrogen release from fertilizers and inhibition, while ignoring that most organic and inorganic compound fertilizers also have such problems

Especially when the compound fertilizer made of fermented organic matter and inorganic nitrogen fertilizer is damp or applied to the soil, urine enzyme will quickly become active and release ammonia nitrogen. At the same time, the action of digestive bacteria will also convert nitrogen to nitrate nitrogen, which will pollute the environment. larger