Which herbicide should I use before the cotton field is covered? According to experts: When weeding soil in cotton fields, we can choose herbicides such as trifluralin, lasso, acetochlor, butachlor, diuron, and dilamine; when weeding stems and leaves, we can choose to kill them. It is a herbicide that can be used to kill, cover grass, grass, gram, glyphosate and so on.
Before the cotton is planted, it can be evenly sprayed with 48% trifluralin emulsifiable concentrate of 100 ml-150 ml per mu, 50 kg of water, and mixed immediately after application. Before the cotton is planted, it can be sprayed with 43% of the cable emulsifiable concentrate of 200ml-300ml per acre and 50kg of water. After the cotton seedling grows to 4 leaves, it can be used to stabilize the emulsifiable concentrate 50ml or 12.5. % grass can be used to treat stems and leaves with 50 ml of emulsifiable concentrate and 50 kg of water.
Pay attention to the following problems when using cotton field herbicides: First, the type of herbicide used should be suitable. The second is to pay attention to the dose must be accurate. Third, when using herbicides, pay attention to the temperature, soil quality and water consumption during use, and carefully follow the instructions. Fourth, the application of herbicides should be dedicated.
The so-called Pharmaceutical Intermediates, refers to the production of pharmaceutical products in the process, the use of raw materials, materials, accessories and other intermediate products. In fact, some of the chemical synthesis process for the chemical raw materials or chemical products. This chemical products, do not need the production license of drugs in the ordinary chemical plant can be produced, as long as some of the level, can be used for the synthesis of drugs.
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