Method for preventing and controlling Hemintho-sporum leaf spot of rice plants with biological agent and thiophanate methyl

Abstract

The invention relates to a method for preventing hemintho-sporum leaf spot of rice plants with biological agent and mildothane which is a method for preventing rice diseases used to solve the disadvantages of the prior art; according to the characteristics that the germ belongs to an unknown bacterium subphylum fungus, and the increase of NPK fertilizer, in particular to potash fertilizer, can effectively improve plant diseases, apart from taking the measure of regulating the ph value of the soil through seed soaking, the method also comprehensively prevents the hemintho-sporum leaf spot with the biological agent and the mildothane; the method and the consumption are as follows: from the beginning of the rice shooting period to the end of the grain filling period, Medina biological agent: humic acid nutrient broth (because the productis a hi-tech product produced in America, the effective phosphorus content is 8 percent and the effective potassium is above 17.84 percent) is sprayed on the surface of the leaves every 15 days; the consumption of the humic acid nutrient broth is 200g very mu mixed with 1500 times of water; in case of the hemintho-sporum leaf spot, 40g of high-grade mildothane is added to every mu by being sprayed on the surface of leaves.

Description

1. Technical field: [0001] The invention relates to a method for preventing and treating rice diseases, in particular to a method for preventing and treating flax spot disease of rice by using biological preparations and thiophanate-methyl. 2. Background technology: [0002] Flax spot disease, also known as rice flax leaf blight, occurs in all rice areas of the country. In the past two years, due to the sharp rise in the price of chemical fertilizers, farmers have a large investment in production and low returns. Most of the purchased chemical fertilizers are low-priced and small-factory products. , the phosphorus and potassium content in the compound fertilizer is low, and it is ore powder, which is difficult for crops to absorb, resulting in an upward trend in the occurrence of rice flax spot, which obviously affects the normal growth and yield of rice. However, the usual control The measures are applied according to the rice blast, and the effective control effect cannot ...

AI Technical Summary

Problems solved by technology

[0002] Flax spot disease, also known as rice flax leaf blight, occurs in all rice areas of the country. In the past two years, due to the sharp rise in the price of chemical fertilizers, farmers have a large investment in production and low returns. Most of the purchased chemical fertilizers are low-priced and small-factory products. , the phosphorus and potassium content in the compound fertilizer is low, and it is ore powder, which is difficult for crops to absorb, resulting in an upward trend in the occurrence of rice flax spot, which obviously affects the normal growth and yield of rice. However, the usual control The measures are all applied according to rice blast, which cannot achieve effective control effect