It is an effective measure to prevent and cure a variety of diseases and insect pests and ensure the complete seedlings and seedlings of wheat. However, if wheat seeds are sown before planting, if they are not properly prepared, they will not only fail to prevent disease and insects, but also may cause slow emergence of wheat and poor emergence, and even affect the normal growth of wheat. Precautions for the seed dressing are as follows.
1. According to the occurrence of local pests and diseases, determine the type of medication.
If the occurrence of wheat seedlings in the local area is very light and the disease is severe, only the fungicides can be used for seed dressing, and pesticides do not have to be used. If pests and diseases are mixed, they must be mixed with insecticides and fungicides. Species.
2. Accurately understand the amount of pesticides. The amount of the drug used is directly related to the control effect and the emergence of wheat seeds. The seed dressing must be strictly followed according to the specification, whether it is used in the plastic bag or the seed dressing device, and the proportion should be fully allocated. Excessive amounts of triadimefon and diniconazole have an impact on the emergence and growth of wheat and must be strictly controlled. Some farmers use “estimate†medication when dressing wheat seeds, blindly increasing the amount of medication. It will cause obvious phytotoxicity to wheat, which will cause the emergence of wheat to be delayed, slow growth, and even serious ridges and ridges may occur. Therefore, special attention should be paid.
3. Note the seed dressing method. For wheat seed dressings such as phoxim, the pesticides should be diluted with water first, and then mix well with the wheat seeds to cover the stuffy stuff and sow the seeds. Wheat is dressed with triadimefon or Rickettsia. The seed should be sprayed with water until it is moist, and then the agent is evenly mixed on the seed, and then immediately sown or dried after sowing. In the disease and pest mixed area, fungicides and insecticides can be used for seed dressing at the same time. Attention should be paid to first mixing insecticides, boring and drying, and then mixing with fungicides; first, mix the emulsions, and then absorb and dry them and mix the powders. Powder dressing can only dry mix, not wet mix, so as not to cause injury.
4 with the broadcast with the broadcast, can not be long home. After insecticide dressing, it usually takes 2-3 hours, up to 5-6 hours, and the seed is sown immediately after being absorbed by the wheat seed. After dressing with fungicides, they should be sowed immediately after sowing or drying. Some peasant households spend a long time boring after wheat seed dressing, or they will not broadcast after dressing for a long time, which will also cause phytotoxicity to wheat. If wheat is spread in the sun after dressing with fungicides, the disease prevention effect will be significantly reduced.
5. Operate strictly according to the regulations. The seed dressing must be strictly followed according to the seed dressing technical regulations to prevent the poisoning of humans and animals. The concocted wheat seeds should be stored in a cool, dry and inaccessible place. They should not be exposed to the sun and moisture. They should not be used for human and animal consumption. After the seed dressing is completed, they must be washed and washed to ensure safety.
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