Functional stable bulk blending fertilizer as well as preparation method and application thereof

Abstract

The invention relates to the technical field of fertilizers, and particularly discloses a functional stable bulk blending fertilizer as well as a preparation method and application thereof. The functional stable bulk blending fertilizer comprises a mixed fertilizer, a composite inhibitor, a filler, a functional auxiliary agent and potassium chloride, wherein the mixed fertilizer is prepared from urea, calcium superphosphate and diammonium phosphate; wherein the composite inhibitor is prepared from o-phenyl phosphoramide, thiophosphoric triamide, 3, 4-dimethyl pyrazole phosphate, dicyandiamideand chloromethylpyridine; wherein the composite inhibitor covers the surface of the mixed fertilizer; wherein the functional auxiliary agent is prepared from biochar, humic acid, polyglutamic acid, ammonium polyphosphate, arginine, polyacrylamide, 1, 2-hexanediol, dipotassium glycyrrhizinate, an ascophyllum nodosum extract and chitosan; and the functional additive coats the surface of the filler.The invention also provides the preparation method and the application of the fertilizer. The fertilizer improves the utilization rate of the fertilizer, and can improve the quality and increase the yield of crops.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a functional stable blended fertilizer and its preparation method and application. Background technique [0002] Blended fertilizers are made of two or more elemental fertilizers or compound fertilizers with similar particle sizes as raw materials, and are produced by simple mechanical blending in a certain proportion. Blended fertilizer has the advantages of comprehensive nutrition, flexible formula adjustment, and simple production process. With the continuous development of the fertilizer industry, it is widely used and is one of the most important solid fertilizer varieties. [0003] However, blended fertilizers also have problems such as low nutrient utilization efficiency, serious waste of nutrient resources, unstable effect, single variety, and lack of functions in agricultural production, which greatly limit the promotion and application. [0004] In the prior art, i...

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Problems solved by technology

[0003] However, blended fertilizers also have problems such as low nutrient utilization efficiency, serious waste of nutrient resources, unstable effect, single variety, and lack of functions in agricultural production, which greatly limit the promotion and application.

[0004] In the prior art, in order to solve the problems of low absorption and utilization rate of nitrogen in fertilizers, serious loss, and fertilizer efficiency stability, and realize efficient management and utilization of nutrient resources, it has been possible to control the nitrogen in the soil by adding urease inhibitors and / or nitrification inhibitors. The method of realizing the efficient utilization of nitrogen fertilizer through the conversion of nitrogen fertilizer, this method can effectively regulate the conversion of nitrogen and improve the fertilizer efficiency of nitrogen, but there are still problems such as single inhibitor type, unstable effect, and single fertilizer function.

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