问：我村今年种植的西瓜瓜秧生长势旺，雌花出现晚，坐果率低，畸形、厚皮、空心瓜多，施肥多的田比施肥少的田严重，早瓜比晚瓜严重，请问是什么原因？如何防止？ 答：引起西瓜营养生长过旺、雌花出现晚、坐果率低的原因很多，归纳起来有以下几点：第１，栽培措施不当。过量 Q: The watermelon and melon seedlings planted in our village grow vigorously this year. Late female flowers appear and the fruit set rate is low. Malformations, thick skins and hollow melon are more fertile fields than fields where fertilization is less severe. what is the reason? How to prevent? A: Watermelon nutrition growth caused by excessive, late evening female flowers, fruit setting rate is low for many reasons, summed up the following points: First, improper cultivation practices. excess