Watermelon is a male and female flower and insect flower crop. If you encounter low temperature, rainy and other unfavorable conditions during the flowering period, it will affect the normal pollination, and the small watermelon will slowly fall yellow. In addition, the growth period of watermelon, especially during the flowering period, the excessive nitrogen fertilizer will cause excessive vegetative growth, and the reproductive growth will be inhibited, and the flower and fruit will fall off due to insufficient organic nutrition. If the planting density is too large and the growth is too strong, it will also cause the flowers to fall.
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