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一、棉花苗期“一喷多治”防治思路棉花苗期的虫害主要有蚜虫、害螨(红蜘蛛)、蓟马(危害棉苗顶尖而形成“无头棉”)等,病害主要有枯萎病、炭疽病、立枯病、猝倒病、根腐病等,因此,治好虫、防好病、促苗强壮是棉花苗期管理的重点,也是搭好丰产架子的关键措施。采取混合用药,一喷多治的“2+1+2”方法效果显著。其主要思路是:1.以治虫为主的,选用不同成分,不同作用方式的2种农药,添加1种杀菌剂防病,添加2种不同类型的营养调节剂壮苗。
First, the cotton seedling “a spray Duozhi ” control ideas Cotton seedling pests mainly aphids, pest mites (spider mites), thrips (endanger the top of cotton seedlings to form “headless cotton ”) The main diseases are fusarium wilt, anthracnose, blight, damping-off disease, root rot, etc. Therefore, treating insects, preventing diseases and promoting seedling growth are the key points of cotton seedling management and the key to setting up a good yield shelves. Measures. Take mixed medication, a spray Duoji “2 + 1 + 2 ” method effect is remarkable. The main idea is: 1. To worm-based selection of different ingredients, different modes of action of two kinds of pesticides, add a fungicide disease prevention, adding two different types of nutritional conditioning agent strong seedlings.