早春季节处于苗期及结瓜初期的黄瓜,经常由于低温、潮湿或干旱导致根系受伤,降低吸收能力,造成植株生长衰弱,生长发育失调,以致瓜秧顶端形不成心叶,呈现出花抱顶,即俗称花打顶现象。尽管这种现象是一种生理症状,一旦发生, In the early spring, the cucumber in the early stage of seedling and fruiting period is often injured due to low temperature, humidity or drought, which reduces the absorption capacity and causes the growth of the plant to be weak and the growth and development of the cucumber are unbalanced. As a result, , Commonly known as the top phenomenon. Although this phenomenon is a physiological symptom, once it occurs,