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蔬菜植株早衰是指非正常的生长状态停止,表现在长相上即为根群弱小,尤其是毛细根细少,变色,老化;叶片薄而粗糙无光泽,由下向上逐渐黄化,类似于缺素症状;茎秆髓腔质地疏松或中空,节间细长;果实畸形果增多,连续结果能力骤降,果实瘦小(有机营养不足),色淡(如青皮果增多,光泽度差),内含物减少,品质差,有效结果期缩短。另外,这一类的植株往往生理性病害多,难以防治。总之,蔬菜植株早衰是蔬菜生产上的大敌,严重制约着蔬菜的产量和品质,一般减产三至五成不
Premature aging of vegetable plants refers to the abnormal growth of the state to stop, the performance is the appearance of the root group is weak, especially thin fine roots, discoloration, aging; thin and rough leaf matte, gradually yellow from bottom to top, similar to the lack of Symptoms; stalk marrow cavity loose or hollow texture, internodal slender; fruit malformations increased, the ability of continuous results plummeted, the fruit is thin (organic nutrition deficiencies), pale (such as green skin increased, poor gloss), within Reduced content, poor quality, effective results shortened. In addition, plants of this type tend to have more physiological diseases and are difficult to control. In short, premature aging of vegetable plants is the enemy of vegetable production, which severely limits the yield and quality of vegetables. Generally, it reduces production by 3-5%