The watermelon grows vigorously and the water content of the plant is high. It is sensitive to various chemical agents. Once the application concentration is too high or the drug is used improperly, it is prone to phytotoxicity. Remedy after phytotoxicity:
Rinse with water: Immediately use sprayer to fill with clean water. Spray repeatedly on the stems and leaves to flush out the pesticides that remain on the surface of the plant. Reduce the phytotoxicity. When flushing, the pressure of the sprayer should be sufficient and the amount of water sprayed should be large.
Toxins attacked by poison: In case of phytotoxicity in the watermelon or when it is found that the medication is not used, spray 5000 to 7000 times of potassium permanganate solution immediately, which can relieve the phytotoxicity.
Suspension of drug use: Before the drug injury has not been completely relieved, minimize the use of chemical pesticides, especially similar pesticides, and stop using them so as not to increase the injury.
Strengthen management: After the occurrence of phytotoxicity in watermelon, combine some suitable quick-acting fertilizers with watering, and then cultivating loose soil can promote the plant to restore normal growth and development as soon as possible. Can also be combined with root fertilization and watering, foliar spray phosphorus, potassium, in order to improve plant nutrition and enhance root absorption capacity. The method is: to superfine calcium superphosphate 1 kg, add water 40-50 kilograms, soak a day and night, take the supernatant liquid sprayed watermelon stems and leaves, is conducive to plant normal growth and development.
Sweeteners refer to Food Additives that can impart sweetness to soft drinks. Sweeteners can be divided into nutritive sweeteners and non-nutritive sweeteners according to their nutritional value; according to their sweetness, they can be divided into low-sweetness sweeteners and high-sweetness sweeteners; according to their source Divided into natural sweeteners and synthetic sweeteners.
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