High-phosphorus high-potassium liquid compound fertilizer as well as preparation method and application method thereof

Abstract

The invention provides a high-phosphorus high-potassium liquid compound fertilizer. The liquid compound fertilizer comprises the following components: 20-120 parts of a phosphorus fertilizer, 15-60 parts of a potassium fertilizer, 0.1-12 parts of a microelement fertilizer, 0.5-5 parts of a co-solvent and 10-50 parts of water, wherein the microelement fertilizer is one or more of a boron fertilizer, a manganese fertilizer, a zinc fertilizer and an iron fertilizer and is a water-soluble fertilizer. The invention also provides a preparation method and an application method of the high-phosphorus high-potassium liquid compound fertilizer. The contents of phosphorus and potassium in the high-phosphorus high-potassium liquid compound fertilizer are higher, the phosphate radicals and potassium ions stably coexist in a liquid phase so that the generation of insoluble precipitates such as potassium phosphate is avoided, the high-phosphorus high-potassium liquid compound fertilizer has the advantages of high content of the total nutrient, stable physical and chemical shapes, no phenomena such as crystallization, precipitation and layering under high temperature, low temperature and room temperature conditions, good fluidity, high-concentration nutrients, time conservation, labor conservation, fertilizer conservation, high fertilizer efficiency and the like, the high-phosphorus high-potassium liquid compound fertilizer is suitable for larger-area automatic fertilizer-applying operation and the fertilizer-applying efficiency can be significantly increased.

Description

technical field [0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a large-scale and medium-trace element fertilizer applied to crops, in particular to a high-phosphorus and high-potassium liquid compound fertilizer and a preparation method thereof. Background technique [0002] Phosphorus is one of the macronutrient elements necessary for crop growth and development. It is an indispensable element for the formation of nuclear protein and lecithin. Phosphorus can accelerate cell division, accelerate root and shoot growth, promote flower bud differentiation, early maturity, and improve fruit quality. For example, it plays an important role in the respiration, photosynthesis, sugar decomposition and transportation of crops. Phosphorus can promote seed germination, help flower bud differentiation, promote good flowering, and promote early maturation and fruiting; it can also promote root development, making roots grow ea...

AI Technical Summary

Problems solved by technology

However, at present, in the liquid phase of liquid fertilizers, it is difficult to simultaneously prepare phosphorus and potassium elements into high-concentration and high-content clear liquid fertilizers, thereby reducing the application of high-phosphorus and high-potassium fertilizers in irrigation systems, so as to prevent crops from being deficient in phosphorus. Potassium must use high-phosphorus and high-potassium fertilizers respectively, which increases the production cost of farmers

Undoubtedly increased the burden on farmers

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