Controlled release particle fertilizer used for controlling crop insect disease

Abstract

The invention relates to a controlled release particle fertilizer used for controlling crop insect diseases. The fertilizer has a double layer core shell structure and is in a granular shape and comprised of a core, an interface layer cladding the core and a controlled release layer as a casing cladding the interface layer. The core contains fertilizers required by a crop, and the interface layer cladding the core contains pesticide; or according to production requirement, the core contains particles with pesticide, and the interface layer cladding the core contains fertilizers; and an outermost layer is a controlled release layer controlling dissolving of pesticide and fertilizers. According to the invention, pesticide and fertilizer can coexist stably and release slowly, so as to reduce drug application and fertilizing times during a crop fertility stage and save field labor.

Description

technical field [0001] The invention relates to an insecticidal, sterilizing and controlled-release granular medicinal fertilizer integrating nutrition, insecticidal and bactericidal effects and a production method thereof, in particular to a granular medicinal fertilizer and a preparation method thereof. Background technique [0002] Pesticides and fertilizers are the basic material guarantee for agricultural production and food security. However, due to the excessive use of pesticides and fertilizers, a series of problems such as environmental pollution have been brought about; due to untimely control of diseases and insect pests, it has often brought great losses to agricultural production; , It is easy to cause prosperous growth in the early stage, loss of fertilizer, and defertilization in the later stage. In order to reduce the environmental pollution caused by excessive use of fertilizers and prolong the validity period of fertilizers, slow-release fertilizers have a...

AI Technical Summary

Problems solved by technology

[0004] At present, there is "New Drug Fertilizer" (Application No.: 200620170623.4) about the controlled-release drug-fertilizer mixture product, but the core layer of this product is only to mix fertilizer with simple pesticide preparation, and the simple mixing of pesticide and fertilizer is mostly not Stable, easy to cause pesticide decomposition, the existence of urea aldehyde and urea slow-release layer 2 is not very necessary, and increases the production cost, because the coating layer has played the role of slow release, and the fertilizer and pesticide in this product are released at the same time , while the timing of pesticides and fertilizers required by crops may not be consistent

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