In winter, the greenhouse temperature and ground temperature are low, the light is weak, the photosynthetic efficiency of summer squash is low, and the plant body nutrition accumulation is small. In addition, the function of the root system of summer squash is reduced, the absorption, transportation, and utilization of fertilizer and water are blocked, and the flower buds of summer squash are poorly differentiated, resulting in an increase in short and thick melons. In addition, if the concentration of the vegetable grower wipes the melon medicine is too high and the time to wipe the melon is too early, it will easily cause the melon strips to develop abnormally and form short and thick melons; Obstruct the normal growth of melon strips and form short and thick melons.
Remind vegetable farmers to take early measures to prevent zucchini squash melons: First, improve the environmental conditions in the squash. When zucchini enters the fruiting period, it is necessary to raise the melon at high temperature. Keep the shed at 25℃ during the day to enhance photosynthesis and accumulate photosynthetic products. Keep the temperature at 12℃～14℃ to facilitate the transportation of photosynthetic products to the melon strips and promote the growth of melon strips. At the same time, it is necessary to pick leaves in time, improve ventilation and light conditions between rows and reduce nutrient consumption. The second is to pay attention to top dressing. Functional fertilizer and fully water-soluble fertilizer are applied together to grow roots, promote vines, and improve plant growth. Also add foliar fertilizer to improve leaf photosynthesis and delay senescence. The third is to pay attention to the concentration of wiping melon medicine should not be too large, it is necessary to test before applying. The time for wiping melon is the day before the female flowers bloom or the morning of the day of flowering.
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