Tightly grasp the prevention and control of watermelon
1. Balance the application of phosphorus and potassium fertilizers, increase the application of organic fertilizers, and avoid partial application of nitrogen fertilizers, which can effectively reduce the phenomenon of watermelon madness. Strengthen the ventilation of the greenhouse, reduce the humidity in the field, increase the illuminance, and promote the growth of watermelon.
2, watermelon flower bud differentiation period sprayed to promote Huawang No. 3, forcing the top of the vigorous growth of a large number of nutrients, inhibiting the main shoots mad, and promote flower bud differentiation. And when the female flower is open, the female flower is sprained in the first 3-5 sections of the stem, which can effectively control the prolongation and increase the fruit set rate during flowering.
3, found that the watermelon stems high tilt phenomenon, you need to dig a deep vine groove on the ground near the tip of the stem, press the tender stem into the groove, let the stem tip exposed to the vine groove 5~10 cm, can be effectively controlled The top advantage is to suppress the length of the melon.
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