In modern agricultural production, seed treatment technology is one of the important means to improve the yield and quality of crops. Among them, Siguan seed dressing, as a widely used seed treatment agent, is favored by farmers and agricultural experts. The "four crowns" in its name imply that it may contain four pesticides or growth regulators with different functions, each of which is like a crown to protect the healthy development of seeds.
First of all, fungicides are an important part of Siguan seed dressing, and common active ingredients include fludioxonil, tebuconazole, formabi, etc. These drugs have a strong bactericidal effect and can effectively control a variety of diseases caused by seed carriers or soil transmission. For example, fludioxonil can inhibit the germination and infection of pathogenic bacteria, tebuconazole has a good preventive effect on a variety of fungal diseases, and formoxax is widely used in seed treatment of various crops because of its broad-spectrum and long-lasting disease prevention performance.
Secondly, insecticides are also an indispensable part, such as imidacloprid, thiamethoxam, chlorpyrifos, etc. They can effectively control the damage of underground pests to seeds and seedlings, and protect crops from pests in the early stages of germination. For example, imidacloprid can effectively inhibit stinging and sucking mouthparts pests, thiamethoxam has systemic conduction properties and can remain active in plants for a long time, and chlorpyrifos has strong contact killing and stomach toxicity effects on a variety of chewing mouthparts pests.
In addition, growth regulators such as gibberellin and brassinolide are added to the four-crown seed dressing to promote seed germination and healthy seedling growth. Gibberellin can break seed dormancy, improve seed vigor, and promote early growth;Brassinolide can regulate the physiological and biochemical processes in plants, enhance stress resistance, and improve the photosynthesis efficiency of crops, so as to achieve the effect of increasing yield and improving quality.
In addition, microbial agents such as Bacillus subtilis, Penicillium lavender, etc., are often included in the formula of Siguan seed dressing because of their natural pollution-free and environmentally friendly characteristics. They can not only effectively inhibit the occurrence of soil-borne diseases, but also enhance the nutrient absorption capacity of crops by improving the rhizosphere microecological environment, thereby promoting plant growth and achieving the goal of green prevention and control.
It is worth noting that due to the large number of Siguan seed dressing brands on the market, the specific products produced by each manufacturer may contain different combinations of active ingredients due to different R&D strategies and market demand. Therefore, in actual use, it is necessary to carefully read the instructions on the product packaging, or directly consult the manufacturer to obtain accurate product information, so as to ensure that the operation is carried out in accordance with the scientific and reasonable drug plan, which not only ensures the safety of seed treatment, but also maximizes the comprehensive effect of Siguan seed dressing, and brings real results of increasing production and income for agricultural production.