Four points for attention in wheat sowing and seed mixing

If the technical operation of seed dressing before sowing is improper, it will not only have no effect on disease and insect control, but also lead to slow emergence and uneven emergence of wheat seedlings, and even affect the normal growth of wheat seedlings. In general, wheat seed dressing with chemicals before sowing should pay attention to the following four points:

According to the occurrence of local diseases and insect pests, determine the types of medicine. if the occurrence of local wheat seedling pests is very light and the disease is serious, you can only use fungicides to treat seeds without using insecticides; if diseases and insect pests occur mixed, you should not only use insecticides to mix seeds, but also use fungicides to treat seeds. If the occurrence of underground pests is serious and the expected control effect can not be achieved by seed dressing, seed dressing and soil treatment should be adopted to control wheat pests.

To accurately grasp the amount of pesticides, some farmers blindly increase the dosage by estimating the amount of medicine used when mixing seeds with wheat chemicals. However, the practice has proved that if the dosage of wheat seed dressing is too large, it will cause obvious drug damage to wheat. If it is light, it will delay the emergence of wheat seedlings, grow slowly, and even lack seedlings and break ridges. Therefore, special attention should be paid to accurately grasping the amount of pesticides.

Pay attention to the seed dressing method of wheat seed dressing with phoxim, etc., should first dilute the pesticide to water, and then mix well with wheat seeds, cover the pile and sow seeds. When wheat seeds are mixed with pentachloronitrobenzene, trimethoprim and Likexiu, the seeds should be sprayed to wet with clean water, then the medicament should be evenly mixed on the seeds, and then sowed immediately or after drying. If you want to mix seeds with insecticides and fungicides, you should first mix pesticides, pile up stuffy and then mix fungicides, and then sow seeds immediately.

Sow with mixing, do not plant wheat seeds with insecticides for a long time, generally pile up for 2-3 hours, then 6 hours long, and sow seeds immediately after the medicament is absorbed by wheat seeds. General wheat seeds with fungicides should be sowed or dried immediately after sowing. Some farmers accumulate too long after seed dressing, or do not sow for a long time after seed dressing, which will cause drug damage to wheat. If the wheat is spread in the sun after being mixed with fungicides, the disease control effect will be significantly reduced. In addition, it is necessary to strictly follow the operating rules of seed dressing to prevent human and animal poisoning, and it is best to implement unified seed dressing.