Efficient controlled release fertilizer used for pollution-free fruit mulberries and preparation method thereof

Abstract

The invention discloses an efficient controlled release fertilizer used for pollution-free fruit mulberries. The efficient controlled release fertilizer comprises, by weight, oyster shells, polylactic acid, graphene, activated nano zeolite, marine microalgae slag, selenium and germanium-enriched spirulina slag, chlorella slag, kelp slag, bacillus subtilis, saccharomycetes, ferrous sulfate, boric acid, calcium ammonium nitrate, soy isoflavone, ammonium stearate, ammonium molybdate, ferrous sulfate, a proper amount of hydrogen peroxide, a proper amount of ammonia water and a proper amount of water. According to the efficient controlled release fertilizer, the marine microalgae slag, the selenium and germanium-enriched spirulina slag, the chlorella slag and the kelp slag are adopted to be matched with nutrient substances, and the coated controlled release fertilizer is prepared after enzymolysis and zymotechnics. The fertilizer is rich in fermentation micromolecule organic matter and microelements, the nutrition is rich and can be absorbed and utilized by the fruit mulberries conveniently, and growth of the fruit mulberries can be facilitated. The selenium and germanium nutrition is increased, and pollution-free cultivation of the fruit mulberries is guaranteed. A coating layer capable of supplying oxygen and dynamically adjusting pores is adopted, organic matter nutrients can be released for a long time, efficient cultivation of the fruit mulberries can be realized, and the efficient controlled release fertilizer can be widely applied and popularized.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a pollution-free high-efficiency slow-release fertilizer for fruit and mulberry 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 fertilizers to i...

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.