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我省西瓜生产主要采取以地膜覆盖为主的早熟栽培形式。这种形式如管理不当，西瓜秧易出现早衰现象，从而严重影响西瓜的产量、质量及熟性。 １、西瓜早衰的特征 早衰主要发生在西瓜生长的中后期，特别是在瓜长到碗口大小时最为明显。其主要特征是：瓜蔓细弱生长停滞，午后萎蔫?
Watermelon production in our province mainly to pre-mature cultivation of mulching forms. Such as improper management of this form, watermelon seedling susceptible to premature aging phenomenon, thus seriously affecting the yield, quality and maturity of watermelon. 1, the characteristics of premature aging watermelon Premature aging occurs mainly in the late growth of watermelon, especially when the melon grows to the size of the most obvious. Its main features are: melon weak growth stagnation, wilting afternoon?