蔬菜苗期沤根病的防治蔬菜苗期沤根，是一种生理性病害，冬季和早春培育瓜果蔬菜苗时易发病。表现为幼苗出土后长期不发新根，幼根的外部呈锈褐色，并逐渐腐烂，最后全株萎蔫死亡。防治沤根的主要措施是一、保温。黄瓜幼苗适宜的生长气温为白天２５－２８℃，晚上１６－１... Vegetable seedling root root disease prevention and control of vegetable seedling roots, is a physiological disease, winter and early spring to cultivate fruits and vegetables when susceptible to disease. The results showed that after the excavated seedlings did not send new roots for a long time, the external roots of the young root rust brown, and gradually decay, and finally the whole plant wilt death. Prevention and cure root is one of the main measures, insulation. Cucumber seedling suitable for growing temperature during the day 25-28 ℃, 16-1 at night ...