Slow-release fertilizer for sunflower prepared from micro nano dual-channel coating material and preparation method thereof

Abstract

The invention belongs to the slow-release fertilizer field, and specifically discloses a slow-release fertilizer for sunflower prepared from micro nano dual-channel coating material. The slow-release fertilizer is characterized by including the following components by weight: 5-6 parts of alkyl chloride, 50-52 parts of straight chain starch, 8-9 parts of mesoporous silica nanoparticles, 8-9 parts of micron spherical carbon, 40-43 parts of peanut bran, 50-52 parts of Camellia shell ferment powder, 50-52 parts of bagasse ferment powder, 20-22 parts of dry ginger submicron powder, 23-25 parts of drying seaweed powder, 3-4 parts of proline, 3-4 parts of cysteine and 2-2.2 parts of polymeric boron. The crosslinking modified amyloseh is supplemented with two sizes of substances in micron size and nano size to construct a dual-channel slow-release coating material, so as to increase the slow-release regulation and control effect and delay the disintegration rate of the slow-release coating material to certain degree. The fertilizer improves regulation and control effect and realizes respective utilization of different nutrients in different growth stages of sunflower.

Description

technical field [0001] The invention belongs to the field of slow-release fertilizers, and in particular relates to a sunflower high-efficiency slow-release fertilizer prepared by using a micro-nano double-channel coating material and a preparation method. Background technique [0002] Coated slow-release fertilizer can significantly improve the utilization rate of fertilizer. However, the vast majority of slow-release fertilizers currently on the market are facing many problems, for example: 1. The coating material is made of chemically synthesized non-degradable polymers, and these refractory polymer coating materials are easily left in agricultural fertilizers. Soil degradation and serious pollution are caused in the soil; 2. The coating material is made of natural polymer degradable materials, but the slow-release fertilizers made of these natural polymer degradable materials are too expensive on the one hand, and the controlled release effect is not good on the other ha...

AI Technical Summary

Problems solved by technology

[0003] The fertilizer efficiency of slow-release fertilizers depends on the slow-release material and the form of coating. It is common in the market to use the same or different coating materials to achieve layered coating and then achieve slow-release regulation, but this will increase material costs and production costs.