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粉尘法施药技术是保护地栽培发展中的一项新技术。它是让农药的颗粒在大棚、温室内形成飘尘,并在空中悬浮一段时间后沉积在作物上,从而达到防病治虫的目的。与常规喷雾相比有以下优点: 1.防治效果好,防治对象多。5％的百菌清粉尘剂可防治黄瓜霜霉病、炭疽病、番茄晚疫病等,防治效果可达93％。 2.操作方便、功效高。不需用水,喷洒速度快,喷时可从一头开始,边退边喷直到另一端。 3.增产效果显著。试验表明,春大棚黄瓜比常规喷雾每亩多收816公斤,春季温室番茄每亩多收1237公斤。
Dust method application technology is a new technology in protected cultivation. It is to let pesticide particles in the greenhouse, the formation of floating dust in the greenhouse, and suspended in the air for some time after the deposition in the crop, so as to achieve the purpose of disease prevention and pest control. Compared with the conventional spray has the following advantages: 1. Control effect is good, prevention and control of many objects. 5% chlorothalonil dust can prevent cucumber downy mildew, anthracnose, tomato late blight, the control effect of up to 93%. 2. Easy to operate, high efficiency. Do not need water, spray speed, spray can start from the beginning, while retreating side spray until the other end. 3. Significant increase in yield. Tests show that spring greenhouse cucumber than conventional spray more than 816 kg per acre, spring greenhouse tomatoes per mu more than 1237 kg.