What are the wheat seed dressings? Wheat seed dressing technology scientific use skills and precautions

     Wheat is one of the main food crops in China. It has a large planting area in China, and the commonly used planting method is sowing seedlings. How to improve the seedling rate? In fact, the method is very simple, soaking the wheat Seeds with seed dressing before planting, which can increase the germination rate and prevent pests and diseases. The following are detailed scientific tips and precautions for the use of Wheat Seed dressings. The growers have to learn quickly.

      First, what kind of medicine is good for Wheat seed dressing?

(1) Systemic insecticides

1, diazinon

It is also called diazinon, which is an insecticidal and acaricidal agent. It has the functions of contact killing, stomach poisoning and fumigation, and also has good killing and nematicidal effects. It has good control effects on various pests such as Lepidoptera and Homoptera. It is widely used in corn, tobacco, fruit trees, vegetables, flowers and greenhouses to control a variety of sucking and leaf-feeding pests. Underground pests and nematodes. This medicine can not be mixed with copper preparations and herbicides. It can not be used within 2 weeks before and after application of propanil. It should be used with caution on apples and lettuce. This medicine cannot be used in bronze, copper alloy or plastic containers.

   2, 70% imidacloprid suspension seed coating agent

It is a high-efficiency, low-toxic, safe insecticide with the functions of contact and stomach poisoning. It has good quick-acting effect and long residual period. After the insects come into contact with the medicine, it can cause paralysis and death. It is mainly used to control pests of sucking mouthparts, and the ratio of drug species is 0.2%.

     3, phoxim

Also known as phoxim, acrylonitrile, nitrile phosphide, is a high-efficiency, low-toxic, broad-spectrum insecticide. This medicine is suitable for controlling underground pests. To control underground pests, generally use 50% emulsifiable concentrate 100ml to water 5kg, mix 50kg of wheat seeds, and mix for about 3 hours after sowing. The phoxim is easy to decompose, and the field spray is best used in the evening. The drug is banned on corn, soybeans, and melon crops.

     (two) systemic fungicide

     1, 3% difenoconazole suspension seed coating agent

It is a low-toxic triazole systemic-acting seed treatment fungicide, which can inhibit the biosynthesis of fungal ergosterol, thereby destroying cell membrane formation, leading to the death of pathogenic bacteria, and can be used on various crops to control seed carrier and soil transmission. Fungal diseases.

     2, 6% tebuconazole suspension seed coating agent

It is a triazole-based systemic seed treatment fungicide. It can control the pathogen attached to the surface of the seed, and can also be transmitted to the top in the plant body to kill the bacteria inside the crop.

Both the 3% difenoconazole suspension seed coating agent and the 6% tebuconazole suspension seed coating agent belong to the same structure type and mechanism of action.

     Second, what should you pay attention to when mixing wheat seeds?

1. It is necessary to fully understand the performance of pesticides and accurately grasp the amount of pesticides. When seed dressing, the weight of the seed, the amount of the drug and the amount of water should be weighed. The dilution should be uniform to prevent the drug from being damaged by too much drug. If the dose is too small, the effect of prevention and control will not be achieved. Therefore, before seed dressing, you should fully understand the performance of pesticides and accurately grasp the amount of pesticides.

2, pay attention to the seed dressing method. When wheat is mixed with phoxim, the pesticide should be diluted with water, then mixed with the wheat, and covered with piled suffocation. 3, try to do as much as possible with the mix, can not be placed for a long time. After the wheat is seeded with the insecticide, the drug is immediately sown after being absorbed by the wheat seed.

There are many kinds of wheat seed dressing agents. Commonly used are systemic insecticides and fungicides. The above are detailed scientific techniques and precautions for wheat seed dressing chemicals. You can learn from them.