The treatment of cotton seed is one of the key technologies to prevent seedling disease and prevent the occurrence of high seedlings. Because the existing seed processing technology can only achieve sulphuric acid velvet and selective treatment, and coating technology can not keep up, farmers often suffer from phytotoxicity due to improper operation technology (such as the type and dosage of pesticides) when the seed processing is carried out by farmers themselves, affecting emergence or The seed processing technology cannot be achieved as expected, and it is very important to master the seed processing technology. During the seed treatment, the following issues should be noted. 1. Prepare seed preparations before seeding After the seeds have been desilted, they must be selected. The main selection is the removal of diseased seeds, alfalfa seeds, broken seeds, and small seeds. Sawn seeds can accelerate seed ripening, and sunny seeds can be dried for 2 days to 3 days. Do not expose to the ground in order to prevent injury and physiological activity of the seeds. 2. Selection of Pharmacopoeia Type 1 Use codakone to prevent seedling disease and use carbendazim with caution. Weifu costs more and does not advocate the use of it. In general, the cultivation of membranes with less rainfall or seedlings can be used for enemies and carbendazim; in the case of on-demand, rainy conditions, with the use of enemy cough or Weifu, such as invincible Kesong or Weifu, carbendazim should reduce the dosage, even Its not mandatory. 2 Prevention of seedling pests can be mixed with 3911 or methyl-thiophos- phorus. 3 Prevention of tall seedlings, it is appropriate to use dilute amine. 3. The dosage of 1 dose of Dixon is 0.3% of the seed amount, 2.5% of carbendazim, 0.5% of Weifu is the amount of 0.2% of 23911 or the amount of methylthiophosphonium is not arbitrarily increased, otherwise it is easy to produce phytotoxicity. Generally 0.5% of the seed amount is appropriate. 3 The amount of diamine should take into account the variety. The varieties with stable growth at seedling stage, the amount of dilute amines should be less, and the varieties with high seedling growth and easy formation of tall seedlings, the amount of dildoamine can be appropriately increased; the varieties with stable growth at seedling stage and sensitive to dildodamine may not mix. Diclocamine is generally used in an amount not exceeding 0.04% of the seed amount. 4. In the seed dressing method, the fungicides, the dilute amines, and the insecticides are generally mixed. Several times seed dressing operation is too much trouble, according to the following methods, can achieve better results. According to the above dosage, the proportion of 100 kg of seeds required 500 g of 3911,300 g of dixone and 20 g to 40 g of dilute amine to be used. Diclocamine was first opened with a small amount of hydration. The sprayer first added 5 kilograms of water, and then added 3911 and a good solubilized dilute amine to dissolve the mixture while spraying and turning. Spray half the liquid for the first time. After slightly drying, spray the remaining liquid. After spraying evenly, mix the enemy pine powder when the seed is wet, mix it for 24 hours and spread it to dry. It is forbidden to expose in the hot sun, otherwise the enemy will see the decomposition of light and affect the efficacy. After drying, bagging for sowing. 3911 is a highly toxic pesticide. Attention should be paid to human and animal safety.
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