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一、供试药剂 20％DT可溶性粉剂是齐齐哈尔市化工研究所产品,小白鼠口服致死中量为2646.6毫克/公斤体重,属低毒,低残留,对皮肤无刺激,无药害,安全可靠。二、试验方法 1.田间设计与处理:大区对比法,无重复。试验面积为25亩。处理分为:DT500倍液叶面喷洒;DT+40％克霉灵1∶2,500倍液叶面喷洒;以叶面喷清水为对照。 2.使用方法:DT杀菌剂,1斤药加少量水使药悬浮,再加500斤水配成500倍液,
First, the test agent 20% DT soluble powder is Qiqihar City Institute of Chemical products, oral mice lethal dose of 2646.6 mg / kg body weight, is a low toxicity, low residue, no irritation to the skin, no injury, safe and reliable. Second, the test method 1 field design and processing: large area contrast method, no duplication. Test area of 25 acres. Treatments were divided into: DT500 foliar spray foliar spray; DT + 40% kelp spirit 1: 2500 times foliar spraying; foliar spray water as a control. 2. Usage: DT fungicide, 1 kg of medicine plus a small amount of water to suspend medicine, plus 500 pounds of water dubbed 500 times,