Kind of watermelon pay attention to prevent phytotoxicity

Watermelon grows vigorously and has high water content. It is sensitive to many chemical agents. Once the application concentration is too large or the drug is improperly selected, it is easy to cause phytotoxicity. Remedy after phytotoxicity:

Flushing with water: Immediately use a sprayer to fill the water with repeated sprays on the stems and leaves to wash away the residues remaining on the surface of the plant to reduce the phytotoxicity; when flushing, the pressure of the sprayer should be sufficient and the amount of water sprayed should be large.

Fire with fire: injury occurred or was discovered medication is not immediately sprayed with potassium permanganate 5000-7000 times, can ease the injury in watermelon.

Suspension of medication: Before the phytotoxicity has not been completely removed, minimize the use of chemical pesticides, especially similar pesticides, and stop using them to avoid aggravating the phytotoxicity.

Strengthen management: After the phytotoxicity of watermelon, add some quick-acting fertilizers together with watering, and then cultivate the loose soil, which can promote the normal growth and development of the plants as soon as possible. It can also be combined with root fertilization and watering, and the foliage is sprayed with phosphorus and potassium fertilizer to improve the nutritional status of the plant and enhance the root absorption capacity. The method is: the quality superphosphate 1 kg, 40 to 50 kg of water was added, soaking overnight, the supernatant was taken watermelon leaf spraying, facilitate normal plant growth and development.