论文部分内容阅读
大白菜软腐病是一种细菌性病害。在南昌地区每年秋季常引起大白菜基部腐烂,此病在发病菜地能迅速传染扩大为害,是目前大白菜的主要病害之一。 1984年10月18日在我所一块“无公害”的试验田里调查,品种是“青杂中丰”,大白菜生长进入苞心中期。这块田发病很严重,发病率为69.76％,病指51.8,已经死亡拔蔸的有16.8％,只有13.42％还未发病。自发病开始到10月18日止;叶面喷雾200ppm农用链霉素7次,同时还用800倍的敌克松药水灌蔸1次,都没有起到防治作用。
Chinese cabbage soft rot disease is a bacterial disease. In Nanchang area each year often caused by the fall of cabbage base rot, the disease can quickly spread in the vegetable field to expand the damage, is currently one of the major diseases of Chinese cabbage. October 18, 1984 in our “pollution-free” experimental field investigation, the variety is “green mixed in abundance,” the growth of Chinese cabbage into the middle of the mind. The disease in this field is very serious with a morbidity of 69.76%, disease index of 51.8, death rate of 16.8%, and only 13.42% of the deaths still untreated. Since the onset began until October 18; foliar spray 200ppm agricultural streptomycin 7 times, but also with 800 times the enemy Kesi syrup irrigation 1, did not play a role in prevention and treatment.