1, Qinggou drainage.
The root system of watermelon is extremely resistant to waterlogging, and even if it is flooded for a short time, the plants will be harmed, and it is very easy to cause root anoxia and cause plant death. After the rain, the gutter should be drained in a timely manner so that the time for water accumulation in the melon land should not exceed 10 hours. If possible, lightly use well water to increase oxygen in the soil and reduce ground temperature.
2, cultivating fertilizer.
After the rain, it is easy to cause the loss of soil nutrients. Per acre topdressing compound fertilizer 10 kg. Timely tillage and weed control to prevent soil compaction.
3, preserved flowers.
Summer sowing watermelon in the rain, with paper caps and flowers, and artificially assisted pollination, if the rain within 3 hours after pollination, and then re-supply 1 times. On the 15th day after flowering, 5 cm thick wheat straw was placed under the young larvae to prevent contact with infections on the ground and to reduce the risk of underground pests.
4, control of pests and diseases.
Watermelon in the case of high temperature, high humidity, susceptible to fungal diseases, such as powdery mildew, downy mildew, anthrax, aphids, spider mites and other hazards, we must do a good job of prevention and control. Anthracnose and powdery mildew can be controlled by 65% ​​mancozeb 500-600 times, 70% thiophanate-methyl 800 times, and 50% carbendazim WP 500-800 times. Aphids, spider mites, etc. are available. 10% imidacloprid 2000-2500 times, 40% omethoate 1000-1500 times and other prevention and treatment, virus disease in the early stage of the disease by spraying 20% ​​of the virus A500 times or 1.5% of the disease 800-1000 times liquid, etc., every 10 Spray around once a day and prevent and treat 2-3 times in a row.
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