Dual-channel coated material regulated efficient slow-release fertilizer for tomato and preparation method thereof

Abstract

The invention belongs to the field of slow-release fertilizer, and specifically discloses a dual-channel coated material regulated efficient slow-release fertilizer for tomato. The fertilizer is characterized by including the following components by weight: micron magnetic biomass charcoal composite microspheres, modified high film-forming guar flour, guar gum, glutaraldehyde, mesoporous silica nanoparticles, veratridine, lycopene, amino acid chelated zinc, ferric citrate, nitrogen phosphorus potassium microelement fertilizer, Trichoderma viride, metamorphic glucose powder, silicon humate fertilizer, plant ash, a milk coagulant and a proper amount of water. The crosslinking modified high film-forming guar flour is supplemented with two sizes of substances including mesoporous silica nanoparticles and micron magnetic biomass charcoal composite microspheres to construct a dual-channel slow-release coated material with slow-release regulation and control effect, so as to delay disintegration rate of the slow-release coated material, improve regulation and control effect. The slow-release fertilizer realizes utilizes of different nutrients in different growth stages of tomato, and promotes the efficient cultivation of tomato.

Description

technical field [0001] The invention belongs to the field of slow-release fertilizers, and in particular relates to a high-efficiency slow-release fertilizer for tomatoes regulated by a dual-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 hand , with the ...

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.