Special selenium-rich fertilizer for field crops, and preparation method thereof

Abstract

The invention provides a special selenium-rich fertilizer for field crops. The special selenium-rich fertilizer is high in yield and high in plant disease resistance, and comprises, by weight, 26.5-46.2% of small-particle urea, 7-17.1% of ammonium bicarbonate, 6-55.0% of monoammonium phosphate, 30-58.0% of diammonium phosphate, 60% of potassium chloride, 28% of benzylpenicillin sotassium, 60% of clay I, 1-2% of inorganic selenium salt and 2% of organic trace elements.

Description

technical field [0001] The invention relates to a chemical fertilizer, especially a special selenium-enriched fertilizer for field crops and a preparation method thereof. Background technique [0002] Field crops generally use compound fertilizers. Compound fertilizers refer to chemical fertilizers containing two or more nutrient elements. Compound fertilizers have the advantages of high nutrient content, less auxiliary components, and good physical properties. For balanced fertilization, improve fertilizer utilization and promote The high and stable yield of crops plays a very important role. [0003] Currently on the market, the main varieties of compound fertilizers are conventional compound fertilizers with a nitrogen, phosphorus and potassium content of 15-15-15. But they have had mixed results in increasing yields and plant disease resistance, and they often don't contain rare elements that are beneficial to humans. Contents of the invention [0004] In view of the...

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Problems solved by technology

But it has been uneven in increasing yield and plant disease resistance, and usually does not contain rare elements that are beneficial to humans

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