Alert the four misunderstandings of wheat seed dressing

At the moment, it is time for winter wheat planting. In recent years, with the increasing awareness of farmers about wheat seed dressings, wheat seed dressing sales are very popular, but how to choose safe and efficient seed coating agents is always farmers and Dealer headaches. The following small series summarizes the misunderstandings of wheat seed dressings to help you avoid the misunderstanding.

Mistakes in the purchase of wheat seed dressing

Misunderstanding 1: The brighter the coating agent after seed dressing, the better

The color of the seed dressing is only a warning, in order to distinguish whether the seed has been 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.

Myth 2: The stronger the taste of the seed coating, the better the effect

The strong taste of the drug indicates that the added pesticide is highly toxic, which is not desirable in itself. If you only rely on seed coating and pesticide seed dressing to control underground pests, it is a drop in the bucket. For the serious plots of underground pests, the best method is to rotate, or mix pesticides in chemical fertilizers. Later, it is necessary to select the corresponding insecticides for foliar application to kill lepidopteran pests. .

Misunderstanding 3: Large bottle of seed dressing agent is more effective

Many farmers choose seed dressings, and the same price tends to be larger in large bottles. It feels that the larger packaging volume is more effective and the effect will be better. In fact, this is only a psychological effect. The effect of the pesticide depends on the content and dosage of the active ingredient. For the seed dressing, the low content of the active ingredient often compensates for the deficiency of the active ingredient in the dosage. Therefore, the choice of seed dressing should be more specific formula and content.

Misunderstanding 4: The better the coating effect is, the brighter the coating is, the better the coating agent is.

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 seed during mechanical seeding, and 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.

Definition of wheat seed dressing

Wheat seed dressing refers to a wheat seed treatment against soil-borne wheat, seed-borne diseases and soil pests, and some on the ground pest pesticide products, wheat seed dressing with precision, reduction, environmental protection, safety, etc., more and more Due to the attention of the majority of farmers, there are many varieties of wheat seed dressings on the market. Most of the propaganda is to kill underground pests and sterilize. Wheat seed dressing seed dressings have been used abroad for many years. I have been there for forty years. The original seed dressings are not used for insecticide and sterilization, just a layer of adhesive on the outside of the seeds. Helps to sow evenly.

More pesticide knowledge , please pay attention to China Pesticide Network

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