Carbendazin soluble porous powdered bacteriocide and its prodn. method

Abstract

The present invention discloses a kuweiling soluble powder fungicide and its prodn. method. Said pesticide is composed of CuSO4.5H2O, CaO, water, NH4HCO3 or (NH)2CO3, ZnSO4.7H2O, and amino acid. Take A represent 8 portions CuSO4.5H2O and 2 portions ZnSO47H2O, take B represent Ca(OH)2 prepn. from CaO and 30-40% water, take C represent NH4HCO3 or (NH)2CO3, take D represemtn amino acid, the ratio of A : B : C : D is 0.5-1.2 : 0.6-1.5 : 1.6-2.5 : 0.2-0.8. Said pesticide is obtained through the processes of high temp. dewatering, grinding and screening, mixing and solid phase reaction. It is good in effect, easy to apply, easy to store and transport.

Description

technical field [0001] The invention relates to a bactericidal pesticide and a production method thereof, in particular to a soluble loose powdery bactericide and a production method thereof. Background technique [0002] In recent years, the production of vegetables, rice, and cotton crops in my country has been greatly developed. Due to the expansion of production area, the increase of multiple cropping index, the frequent transfer of improved varieties, the unsound quarantine system, and the influence of cultivation system and climate, damping-off disease on vegetables , blight, blight, blight of rice in the south and blight of cotton in the north, Verticillium wilt take place very seriously, and the incidence rate is as high as 50-70%, causing greater losses to production. At present, although there are some pesticides in China, such as the anti-kuling water agent produced in Shanxi, and the fuliform wilt and wiltick produced in Henan, they are not ide...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the production of vegetables, rice, and cotton crops in my country has been greatly developed. Due to the expansion of production area, the increase of multiple cropping index, the frequent transfer of improved varieties, the unsound quarantine system, and the influence of cultivation system and climate, damping-off disease on vegetables , blight, blight, blight of rice in the south and blight of cotton in the north, Verticillium wilt occur very seriously, the incidence rate is as high as 50-70%, causing greater losses to production

At present, although there are some pesticides in China, such as the anti-kuling water agent produced in Shanxi, and the fuliform wilt and wiltick produced in Henan, they are not ideal for the control of the above diseases, especially the anti-kuling water agent. Inconvenient, placed for too long, easy to fail

[0003] Since the original "copper-ammonia mixture" was proposed in the 1960s to the 1980s, it has been a relatively good systemic fungicide for vegetables, seedling blight, and damping-off disease. Since this pesticide has always been prepared and used when it is needed, it has not been used. Commodity products are sold, so it is inconvenient to use

In addition, the original mechanical combination is used, and the raw materials have not been specially treated. The active ingredient produced has a low content of ammonia copper, so the drug effect is low, especially the free Cu2+ content is high, and the control effect on the above diseases is low. Harmful to plants

Although my country has synthesized a kind of ammonia copper water agent at present, it not only has low drug efficacy but also is not easy to store and transport.

The original "copper-ammonia mixture" preparation method has only been mastered by a small number of farmers, but it is often not prepared and used correctly. Therefore, there are disadvantages of low efficacy, heavy drug damage, and difficult storage when farmers prepare copper-ammonia mixture.