怎样防治温空韭菜叶尖干枯症叶尖干枯症是温室大棚韭菜生产过程中的常见病。一旦发生，将严重影响韭菜的产量和品质。根据实践经验，防治温室韭菜叶尖干枯症，一般应针对不同病因采取以下相应措施。一、由于有毒气体造成的危害主要包括氨气和亚硝酸气体。前者一般多发生在... How to prevent temperature and air leek leaf tip blight Tip leaf blight is a common disease in the greenhouse production of leeks. Once occurred, will seriously affect the yield and quality of leeks. According to practical experience, prevention and control of greenhouse leek leaf tip dryness, the general should be taken for different causes of the following measures. First, the hazards caused by toxic gases include ammonia and nitrous gases. The former generally occurs in ...