Auxiliary agent capable of upgrading conventional fertilizer into fertilizer containing medium and trace elements, and preparation method thereof

Abstract

The invention relates to an auxiliary agent capable of upgrading conventional fertilizer into fertilizer containing medium and trace elements, and a preparation method thereof. High-efficiency upgrading and transformation of the conventional fertilizer are rapidly realized without high equipment investment or reconstruction of conventional fertilizer production equipment, so the novel fertilizer containing medium and trace elements is produced. The auxiliary agent is in the form of an emulsion and comprises, by mass, 5 to 40% of medium element substances, 1 to 30% of trace element substances, 0.5 to 5% of an organic activated synergist, 0.5 to 8% of an anionic surfactant with a dispersion function, 1 to 10% of a nutrient isolation material, 0.1 to 1% of a grinding aid, 1 to 5% of a disintegration promoter, 1 to 5% of a fire retardant and 30 to 40% of water, wherein all the components sum to 100%. The auxiliary agent provided by the invention has the advantages of 1, easiness and rapidness in preparation; 2, no material returning; 3, flexibility; 4, anti-caking function; 5, high efficiency; 6, economic performance; 7, a design of double-effect nutrients; etc.

Description

Technical field [0001] The invention relates to auxiliaries used in fertilizer production and belongs to the technical field of fertilizer auxiliaries. Specifically, it relates to an auxiliary and a preparation method for upgrading conventional fertilizers into fertilizers containing medium and trace elements. Background technique [0002] China is a big agricultural country, and various fertilizers, especially chemical fertilizers, have made an indelible contribution to my country's food security. [0003] In the past 20 years, China's grain production has increased year by year, but the quality of agricultural products has declined year by year, and the growth rate of total grain output has dropped significantly in the past five years. The reasons for this are unanimously agreed by my country's agricultural experts, fertilizer experts, planting experts, and soil experts. The reason for the slowdown in the growth of agricultural product output and the decline in grain qualit...

AI Technical Summary

Problems solved by technology

However, in the process of agricultural application, it is found that the fertilizer effect of the fertilizer containing medium and trace elements produced by the above method is not good, that is, the fertilizer effect of the compound fertilizer containing medium and trace elements prepared by the above two methods is not obvious, and it is different from that without adding medium and trace elements. There is little difference in fertilizer efficiency, which is far from similar imported fertilizers

[0007] The main reason analyzed by experts is that medium and trace elements are directly mixed with traditional granular fertilizers, because medium and trace elements are mostly salts or powdery, which cannot be uniformly combined with traditional granular fertilizers; even if these medium and trace elements are prepared into granules Due to the difference in density and particle size, the blended fertilizer will segregate during transportation and use. Fertilization into the soil will lead to excessive trace elements in some soils, and lack of trace elements in some soils.

Addition of medium and trace elements, taking zinc sulfate as an example, in the process of fertilizer production and preparation, under the action of moisture and temperature, it will react with monoammonium phosphate or diammonium phosphate in the fertilizer system to form insoluble zinc phosphate , making it difficult for zinc nutrients to be absorbed by crops