In recent years, the excellent control effect of wheat seed dressing agents on underground pests, especially the late wheat aphids, combined with the reduction of wheat total rot disease, sheath blight and scab, has increased year by year, and the awareness of wheat seed dressings has been increasing in various markets. At present, all parts of the country have also reached the stage of tightening the wheat seeds and fixed seed dressings. Xiao Bian summed up the role of several wheat seed dressings and the misunderstandings in the selection, for your reference.
The seven major roles of wheat seed dressing:
1. Mixing insecticides: It can kill underground pests such as cockroaches, cockroaches and golden worms.
2, two mix sterilization: effective prevention of wheat white head disease, powdery mildew, total erosion, scab, rust, root rot and other pathogens.
3, three mix to promote rooting: speed up rooting, effectively improve secondary root eruption, laying a solid foundation for high yield of wheat in the coming year.
4, four mix instead of root top dressing: improve fertilizer efficiency utilization rate of more than 30%, can replace 40 kg of top dressing.
5, five mixed increase production: can increase production by about 20%, increase the weight of thousands of grains, increase production by more than 100 kg per mu.
6. Six-mix control of aphids: Effective control of the reproduction and spread of aphids, with a maximum effective period of up to 160 days.
7, Qi mix to improve resistance: can significantly improve the cold resistance and drought resistance of wheat, so that it can grow well in bad weather conditions.
Popular knowledge: The seeds are mixed with seeds before sowing. They can “protect, grow, root, kill, sterilize, and nourish†to protect the wheat growing season and lay a solid foundation for the harvest in the coming year.
However, wheat seed dressing also has some misunderstandings.
One of the misunderstandings: the brighter the coating agent after dressing, the better.
Color only serves as a warning. It is to distinguish whether the seeds are mixed with the seed coating agent, so as to prevent the seeds of the pesticide-based seed coating agent from being eaten by humans, animals and birds. Therefore, the color depth is independent of the quality of the seed coating.
Misunderstanding 2: The more concentrated the pesticide, the better the potency.
The strong smell of pesticides indicates that the added pesticides are highly toxic, which is not desirable in itself. And if you only rely on seed coating and pesticide seed dressing to control underground pests, it is a drop in the bucket. For the plots with serious underground pests, the best method is to rotate, or mix pesticides in chemical fertilizers, and not rely solely on seed coating agents. In the later stage, it is necessary to use the corresponding foliar sprayed corresponding insecticide to solve the lepidopteran pests.
Misunderstanding 3: The big bottle of seed dressing agent is more affordable, and the dosage is good enough.
Many farmers choose seed dressings, and the same price tends to be larger in large bottles. It feels more like a lot of drugs, and the effect will be better. This is only a psychological effect. The effect of the pesticide depends on the content and dosage of the active ingredient. The low content of the active ingredient on the seed dressing agent will make up for the deficiency of the active ingredient in the dosage. The choice of products should be based on the specific formula and content.
Misunderstanding 4: After seed dressing, the film formation effect is good, and the brighter the coating agent, the better.
The film-forming agent is a chemical substance, and the hydrophilic group and the hydrophobic group determine the brightness of the appearance. The purpose of film formation is to smoothly seed the seeds during mechanical seeding. The color of the film is independent of the effect of the seed coating itself. On the contrary, the film-forming substance will affect the water-permeable and permeable function of the seed. In the low temperature state, it will not promote the early germination of the seed, but will affect the normal germination of the seed.
Experts advise: In addition to the observation of the seed coating agent, we must choose the seed coating agent for professional registration and seed dressing, such as seed dressing, suspension seed coating agent, seed coating agent, seed treatment suspension agent, suspension seed dressing. Agent, wet powder coating agent, etc., and other professional seed dressings, among which the "mixing beneficial" seed coating agent in suspension seed coating agent is the first choice!
The wheat planting season is coming soon. I hope that the majority of users must keep their eyes open and not be confused by the surface, let alone lose their profits.
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