Acetochlor is one of the most used pesticides in China. Its use of hormones and effects has been familiar to farmers. However, the production of traditional 50% acetochlor EC requires a large amount of organic solvents, which is easy to produce and use. The phenomenon of causing harm to the human body and environmental pollution, and easily causing phytotoxicity of crops, is also plaguing humans. Now developed by the Chemicals Department of Pesticide Formulation Engineering Technology Center, Anhui Province Chemical Industry Research Institute Jinli Company's 40% acetochlor water emulsion, to some extent to overcome these shortcomings, there is a tendency to replace 50% acetochlor EC . A simple comparison of 40% acetochlor water emulsion with traditional 50% acetochlor EC:
First, the performance and application techniques of the two agents are basically the same. Through the trials in recent years and the current application and promotion, it has been confirmed that 40% acetochlor water emulsion is consistent with 50% acetochlor EC in the control object, the scope of prevention, the dosage, the method of use and the control effect. In 2000, a comparison test between 40% acetochlor water emulsion and 50% acetochlor EC in the Plant Protection Institute of Sichuan Academy of Agricultural Sciences showed that 40% acetochlor water emulsion and 50% ace The total control effect of 75ml on the weeds is about 76% and 78% respectively. There is no phytotoxicity in the 125ml of acetochlor water emulsion, the total control effect is as high as 91%, and the control effect on weeds such as Mai Niang can be as high as 95%.
Second, the two agents are different in formula. 50% acetochlor EC contains active ingredients, emulsifiers, organic solvents and other auxiliaries; 40% acetochlor water emulsion as a pesticide formulation should also have good thermal stability, freeze-thaw stability and water dilution stability. Therefore, the formula is complicated, and contains not only active ingredients, emulsifiers, but also co-emulsifiers, water, antifreeze agents, antifoaming agents, antimicrobial agents and thickeners, so that 40% acetochlor water emulsion has Same performance and effectiveness as 50% acetochlor EC.
Third, 40% acetochlor water emulsion has a certain price advantage. It is based on water, and the amount of emulsifier is equivalent to 50% acetochlor EC. Although it is added with some additives such as co-emulsifier, antifreeze and defoamer, it can still be 50% acetochlor at the price. Dairy oil competes, although the advantages are small.
Fourth, 40% acetochlor water emulsion is safe and environmentally friendly. Since 40% acetochlor water emulsion is compared with 50% acetochlor emulsion, the amount of organic solvent is reduced. Therefore, it has the following characteristics:
1. It reduces the harm to the human body and the pollution to the environment during production, processing and application, and greatly improves the safety of production, storage, transportation and use;
2. Reduce the odor of toxic pesticides and reduce the irritation to the eyes;
3. The safety of the main substance is stronger than that of 50% acetochlor EC, which reduces the possibility of phytotoxicity to surrounding crops.
40% acetochlor water emulsion in the same amount as 50% acetochlor EC, the weed control effect is equivalent, but its price is lower than 50% acetochlor EC, and to a certain extent, the agricultural, It brings profits to customers and increases safety and environmental compatibility during storage, processing and use of products. The product adapts to the requirements of the times and is conducive to the development of green agriculture. Therefore, 40% acetochlor water emulsion will have stronger vitality, it will gradually replace or partially replace 50% acetochlor EC, and have a broader market. prospect.
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