The malformed fruit of watermelon occurs firstly because the plant grows weaker; second is because of poor pollination; third is the deformed flower that is opened in the low temperature period; fourth is the prolonged long-lasting stamina; the fifth is the potassium deficiency; and the sixth is the low-node female flower knot. Fruit. Occurrence of holes is due to the following reasons: excessive irrigation during fruit ripening, low fruit setting and low nutrient distribution within the fruit. To improve the quality of watermelons, the following measures should be taken: First, increase the organic fertilizer, but also directly apply phosphorus, potassium, calcium fertilizer, avoid partial nitrogen fertilizer, pay attention to water fertilizer, reasonable irrigation; Second, promote the mulching, create Insulation environment, to ensure that the results and the expansion period has a sufficient accumulated temperature; Third, control the fruit-bearing parts, choose to leave the main vine on the fruit of the second to the third female flower; Fourth, artificial auxiliary pollination, selected on the main stem of the second From flowering to the third well-developed female flower pollination, each male flower can grant 1 to 2 female flowers, and at the same time timely removal of malformed young fruits.
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