一、叶面喷肥。在苗期喷0．3％的尿素水溶液，能促苗早发。也可喷05％的硫酸亚铁液，促苗健壮，叶色浓绿。在7叶时喷02％硼酸液进行保瓜防落。在大量结瓜时，喷0．3％的磷酸二氢钾和0．5％的尿素混合液进行补肥，可保瓜增产。二、人工辅助授粉。在黄瓜开花后，把采下的雄花蕊对 First, foliar fertilizer. In the seedling spraying 0.3% urea solution, can promote early seedlings. May also spray 05% ferrous sulfate liquid, promote seedling robust, leaf color dark green. Spray 02% boric acid solution on 7 leaves to protect melon and prevent falling. In a large number of knot melon, spraying 0.3% of potassium dihydrogen phosphate and 0.5% urea mixture to supplement fertilizer, can increase melon yield. Second, artificial pollination. After the cucumber blossom, the staminate male stamen right