Water-soluble fertilizer containing nitrogen, phosphorus and potassium and preparation method of fertilizer

Abstract

The invention discloses a water-soluble fertilizer containing nitrogen, phosphorus and potassium. The fertilizer comprises the following components, in parts by weight: 180-280 parts of potassium nitrate, 260-360 parts of potassium dihydrogen phosphate, 280-380 parts of urea, 50-150 parts of monoammonium phosphate, 10-40 parts of a dye by-product, 2-8 parts of EDTA chelated boron, 5-15 parts of EDTA chelated zinc, 2-8 parts of N-butylthiophosphoric triamide, 2-8 parts of inulin polysaccharide, and 0.5-2 parts of sodium hydroxymethylglycinate. In the water-soluble fertilizer containing the nitrogen, the phosphorus and the potassium provided by the invention, the synergistic effect among the N-butylthiophosphoric triamide, the sodium hydroxymethylglycinate and the dye by-product can effectively enhance the stability of the fertilizer, so that the utilization rate of the nitrogen fertilizer can be improved, the loss of the nitrogen fertilizer caused by leaching, volatilization and nitrification can be reduced, and the fertilizer can continuously supply nitrogen nutrients in the crop growing season, and reduce various problems caused by loss of leaching of nitrate nitrogen in soil andaccumulation of nitrogen oxide emission loss.

Description

technical field [0001] The invention belongs to the field of fertilizers, in particular to a water-soluble fertilizer with a large amount of elements and a preparation method thereof. Background technique [0002] With the continuous increase of my country's agricultural industrialization and high-efficiency water-saving irrigation area, my country's demand for fully water-soluble fertilizers is gradually increasing, and its quality requirements are also getting higher and higher. Traditional macroelement water-soluble fertilizers used for vegetables, fruit trees and other crops only contain nitrogen, phosphorus and potassium elements, lacking other medium and trace elements needed by plants and nutrients that are beneficial to crop growth and soil. The long-term application of traditional water-soluble fertilizers with a large number of elements has made my country's soils face a huge test. Soil nitrogen oxide emissions, nitrate runoff, reduced soil microbial activity, and ...

AI Technical Summary

Problems solved by technology

The long-term application of traditional water-soluble fertilizers with a large number of elements has made my country's soils face a huge test. Soil nitrogen oxide emissions, nitrate runoff, reduced soil microbial activity, and massive consumption of soil carbon sources have seriously affected soil ecological functions.

At the same time, the fertilizer utilization rate is low, and the loss of nitrogen and phosphorus and potassium elements is easy to pollute the groundwater, or it can be mixed with Fe in the soil. 3+ 、Al 3+ Ions combine to form insoluble inorganic salts, thereby destroying the soil structure and causing soil compaction, etc.

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