Zinc-rich and efficient slow-release fertilizer for anti-season and pollution-free broccoli and preparation method of fertilizer

Abstract

The invention discloses a zinc-rich and efficient slow-release fertilizer for anti-season and pollution-free broccoli. The fertilizer is prepared from components in parts by weight as follows: oyster shells, polylactic acid, polyethylene glycol, expanded pearlite nanopowder, viscous humic acid, fish processing leftovers containing rich protein, brown seaweed, enteromorpha, rice bran, oil meal, bean dregs, zinc-rich yeast, cellulase, compound protease, sodium humate, monoammonium phosphate, potassium chloride, medium trace elements, amino acid liquid fertilizer, mannitol, glycerinum, sodium alginate, a proper amount of hydrogen peroxide, a proper amount of ammonia water and a proper amount of water. The fish processing leftovers containing rich protein, the brown seaweed, the enteromorpha, the rice bran, the oil meal and the bean dregs cooperate with nutrient substances, a coated slow-release fertilizer is prepared after enzymolysis and fermentation, the fertilizer contains rich fermented macromolecular organic matter and inorganic matter elements, contains rich nutrients, is convenient to absorb and utilize by the broccoli, can promote the growth of the broccoli and guarantee pollution-free cultivation of the broccoli and can be widely applied and promoted.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a high-efficiency slow-release fertilizer for zinc-rich anti-season pollution-free cauliflower and a preparation method thereof. Background technique [0002] As an important agricultural material, chemical fertilizers have played a pivotal role in increasing food production. Although my country has a large amount of fertilizer, its fertilizer use efficiency is far lower than that of developed countries in the world. In my country's traditional fertilizer fertilization, the utilization rate of nitrogen fertilizer is 30% to 35%, the seasonal utilization rate of phosphorus fertilizer is 8% to 20%, and the utilization rate of potassium fertilizer is about 50%. Most of the nutrients are lost in the air and groundwater with leakage and evaporation. , not only waste serious, but also cause soil, air, groundwater and other environmental pollution. Therefore, modifying f...

AI Technical Summary

Problems solved by technology

However, when calcium peroxide is used directly, it faces the defect and deficiency of releasing oxygen too quickly when it meets water and moisture.