Chelated potassium sulphate compound fertilizer and preparation process thereof

Abstract

The invention discloses a chelated potassium sulphate compound fertilizer and a preparation process of the chelated potassium sulphate compound fertilizer. The chelated potassium sulphate compound fertilizer comprises the following various components by weight: 25-35 parts of urea, 10-20 parts of monoammonium phosphate, 10-20 parts of potassium sulphate, 15-25 parts of bio-organic fertilizer, 2-8parts of calcium nitrate, 2-8 parts of magnesium sulfate, 2-8 parts of borax, and 1-6 parts of zinc sulfate; the preparation process comprises the following steps: mixing and heating: adding the urea,the monoammonium phosphate, the potassium sulphate, the bio-organic fertilizer, the calcium nitrate, the magnesium sulfate, the borax, and the zinc sulfate into a reaction kettle according to parts by weight and heating; stirring: stirring the heated mixed materials, conveying into a pelletizer after evenly mixing; pelleting: pelleting and processing the materials in the pelletizer, forming a spherical particle; drying, screening and cooling the obtained particle mixture, and screening a finished product to obtain a finished product particle. The biological organic matter is supplemented on the basis of three elements of nitrogen, phosphorus and potassium, the microelement is added in a targeted way, the utilization rate of the prepared fertilizer is increased, meanwhile, the formation ofthe aggregated structure of the soil is promoted, and the soil is improved.

Description

technical field [0001] The invention relates to the technical field of compound fertilizer production, in particular to a chelated potassium sulfate compound fertilizer and a preparation process thereof. Background technique [0002] my country is a large agricultural country. At present, the long-term use of nitrogen, phosphorus, and potassium chemical fertilizers in agricultural cultivation has caused soil compaction to a certain extent, lack of organic matter in the soil, and loss of living environment for beneficial biological bacteria, which seriously affects the growth and output of crops. , which further affects the economic interests of agriculture. Contents of the invention [0003] The object of the present invention is to provide a kind of chelating potassium sulfate compound fertilizer and preparation technology thereof, it supplements biological organic matter on the basis of nitrogen, phosphorus, potassium three elements, adds trace element in a targeted manne...

AI Technical Summary

Problems solved by technology

[0002] my country is a large agricultural country. At present, the long-term use of nitrogen, phosphorus, and potassium chemical fertilizers in agricultural cultivation has caused soil compaction to a certain extent, lack of organic matter in the soil, and loss of living environment for beneficial biological bacteria, which seriously affects the growth and output of crops. , further affecting the economic interests of agriculture