论文部分内容阅读
1.白粉病 是黄连一种叶部病害,每年5月份开始发病,7～8月份发病严重。防治方法:①实行轮作,减少病原。②调节环境,适当增加透光率,加强排水,加施磷钾肥,增强植株抗病力。③发病初期用庆丰霉素80万单位喷洒2～3次。 2.炭疸病 主要为害黄连叶片。5月份开始发病,5月中旬至6月下旬是发病盛期。在连续阴雨天气时间长、排水不良条件下容易发生此病。防治方法:①实行轮作,加强排水。②拔除病株,带出田外烧毁。③发病后用65％代森锌400倍稀释液喷洒,每7天喷1次,连喷3次。 3.白绢病 是黄连的一种根茎和
1. Powdery mildew is a leaf disease of Coptis, each onset in May, 7 to August serious disease. Prevention and treatment methods: ① implementation rotation, reduce the pathogen. ② adjust the environment, appropriate to increase the light transmittance, enhance drainage, plus phosphorus and potassium, enhance plant resistance to disease. ③ the early onset of 800,000 units of gentamicin spraying 2 to 3 times. 2. The main cause of jaundice leaves Coptis leaves. The onset of disease in May, mid-May to late June is the peak incidence. Continuous rainy weather in a long time, poor drainage conditions prone to the disease. Prevention methods: ① implementation of rotation, to enhance drainage. ② remove diseased plants, brought out burned outside the field. ③ after the onset of 65% dendritic zinc 400 times diluted spray, spray every 7 days 1, and even spray 3 times. 3. Sclerotium is a rhizome of Coptis