Wheat powdery mildew inhibitor and preparation method thereof

Abstract

The invention discloses a wheat powdery mildew inhibitor. The wheat powdery mildew inhibitor comprises, by weight, 2-40 parts of a loss control regulation agent, 2-200 parts of modified silicone oil, 0.01-0.1 part of nano-selenium and 759.9-995.99 parts of water, wherein the loss control regulation agent is prepared by mixing aminated attapulgite with micro-nano biosilicon / carbon according to a mass ratio of (3-5):(1-2). The invention also discloses a preparation method of the wheat powdery mildew inhibitor. The wheat powdery mildew inhibitor and the preparation method of the wheat powdery mildew inhibitor have the advantages that the preparation is simple, the operation is simple, and the cost is low; the wheat powdery mildew inhibitor can be produced in a large scale mode, and since nanocomposite is prepared from attapulgite, the modified silicon oil and nano-selenium, when the nanocomposite is sprayed on wheat leaves, a net-shaped nano protective layer can be formed through self-assembly so as to effectively isolate pathogen invasion; the inhibitor is natural, free of pollution and side effects, environmentally friendly and safe, and can reduce the incidence of wheat powdery mildew by 70-90 %.

Description

technical field [0001] The invention relates to the technical field of ecological agriculture, in particular to a wheat powdery mildew inhibitor and a preparation method thereof. Background technique [0002] Wheat powdery mildew is a worldwide fungal disease caused by wheat powdery mildew, which can cause 5%-34% economic output loss in severe cases. In recent years, the incidence range of wheat powdery mildew has gradually expanded, and the degree of damage has also been increasing, which has seriously threatened the normal production of wheat. Especially in the Huanghuai wheat region and the northern winter wheat region, it has a significant impact on the yield and quality of wheat. With the popularization of high-yield varieties such as short-stalked and high-density varieties, the large-scale industrial development of a single variety, and the use of high-level nitrogen fertilizers, the variation of physiological races of powdery mildew has been accelerated, and the thr...

AI Technical Summary

Problems solved by technology

There is still a big gap between controlling powdery mildew through the genetic characteristics of wheat, and cultivating wheat varieties that improve wheat yield and quality.

[0004] At the same time, the control of wheat powdery mildew in production is mainly based on chemical control, such as triadimefon bactericidal spray control, but due to long-term and large-scale use, wheat powdery mildew bacteria have produced different degrees of drug resistance

The annual use of pesticides has seriously exceeded the tolerance of cultivated land, and it is also easy to cause great pollution to groundwater

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