Key Techniques for Direct-Seeding Cultivation of Watermelon in Summer and Autumn

In summer and autumn cultivation of watermelon, the early-stage temperatures are relatively high, and the watermelon seedlings grow and develop very quickly. From sowing to flowering and fruit setting takes only 30 to 40 days, fruit development takes about 30 days, and the whole growth period is 70 to 80 days. In the later stage, as temperatures drop, the rate of growth and development gradually slows. If cultivation is too late, low temperatures will affect fruit development, and both yield and quality will decline accordingly. Therefore, the sowing date should be determined through comprehensive consideration of the crop, the climate, and the timing of watermelon supply to the market.