Multifunctional phosphite water-soluble fertilizer and preparation method thereof

Abstract

The invention discloses a multifunctional phosphite water-soluble fertilizer and a preparation method thereof, and relates to the technical field of agricultural fertilizers. The phosphite multifunctional water-soluble fertilizer comprises phosphite, activated humic acid, phosphate and nutrient elements, the phosphate is composed of N, P2O5 and K2O, the nutrient elements are one or more of B, Mn, Cu, Zn, Mo and Fe which are mixed according to any proportion, the mass ratio of phosphorous acid phosphorus to phosphoric acid phosphorus in the phosphite (in terms of P2O5) is 1: (0.3-1.2), and the concentration of the activated humic acid is 20-80 g / L. According to the present invention, the phosphite and the activated mineral source humic acid are adopted as the basis, the antibacterial, nutritional and multifunctional water-soluble fertilizer with the macro-nutrition element and the micro-nutrition element is matched, the growth and development requirements of various crops are met, the chemical activity and the biological activity are improved by activating the mineral source humic acid, and the nutrition, the antibacterial property and the physiological regulation are integrated.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, in particular to a phosphite multifunctional water-soluble fertilizer and a preparation method thereof. Background technique [0002] Phosphite can stimulate the plant's disease-resistant immune system and enable crops to develop continuous immunity to pathogenic bacteria. It is a new way to maintain plant health and disease control. It has been proved to have the effect of increasing yield and disease resistance of crops. Phosphite is used as a fungicide. The role in controlling Oomycetes is widely accepted. However, the concept of phosphite as a source of nutrient phosphorus for plants is controversial because plants mainly absorb phosphate ions, and the oxidation of phosphite to phosphate takes a long time. In plant nutrition, phosphite has its unique advantages. The 5-valent phosphorus in phosphate can only be transported upward in the xylem, while the trivalent phosphorus ...

AI Technical Summary

Problems solved by technology

However, since plants mainly absorb phosphate ions, and it takes a long time for phosphite to be oxidized to phosphate, the concept of phosphite as a source of phosphorus for plant nutrition has been controversial.