Can the watermelon field of pendimethalin be used?
Can not be used, because watermelon is sensitive to pendimethalin, easy to cause drug damage after use, so it is not recommended. Pendimethalin is a selective soil sealing herbicide. After sowing, watermelon is sprayed with pendimethalin for sealing treatment, and then covered with film. When the temperature rises during the day, pendimethalin volatilizes to the film, and at night it condenses into small liquid drops to the surface, which happens to encounter budding watermelon buds, which will lead to watermelon poisoning.
Pendimethalin is an aniline herbicide, pure orange crystal solid, melting point 54-58 ℃, solubility 25 ℃, 0.275mg/L in water, easily soluble in acetone, methanol, xylene and other organic solvents. It is an excellent selective herbicide for upland crops, which can be widely used in corn, soybean, peanut, cotton, direct seeding upland rice, potato, tobacco, vegetables and other crops.
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What kind of fertilizer is applied to duck palm wood?
Duck palm wood fertilization should ensure adequate nitrogen, phosphorus and potassium, and pay attention to appropriate amount of nitrogen fertilizer, not partial application of certain elements, otherwise it is easy to appear the symptom of element deficiency, resulting in poor growth potential of the whole plant. The content of nitrogen, phosphorus and potassium in flower fertilizer is suitable, which mainly contains a lot of humic acid and organic matter.
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Usage of pendimethalin
Use 33% pendimethalin EC 100-300 ml per mu, mixed with 15-20 kg of water, spray the topsoil before sowing or after sowing, or 1-2 days before transplanting, the specific usage varies from crop to crop. It belongs to aniline herbicides and is extensive.
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