近几年,大棚蔬菜生产发展较快,取得了良好 的经济效益和社会效益。但由于棚内气温高,肥水 用量大,湿度大,致使病害多,发病重,影响棚菜 生产的高产、优质、高效。为防止病害发生漫延,常 在定植前用硫磺粉薰蒸消毒空棚。个别农户由于 经验不足,使用硫磺粉直接薰生长着的蔬菜,给 In recent years, the rapid development of greenhouse vegetable production has achieved good economic and social benefits. However, due to high temperature greenhouse, fertilizer and water consumption, humidity, resulting in disease and more serious incidence of greenhouse production, high-quality, high efficiency. In order to prevent the occurrence of disease spread, often in the pre-planting fumigation with sulfur powder sterilization shed. Individual farmers due to lack of experience, the use of sulfur powder directly smoked vegetables growing to give