塑料大棚在蔬菜生产上已被广泛应用,取得了较好的效果。但有些大棚由于管理及利用不科学,致使其效益不高。现简介几种提高大棚效益的方法。一、园土消毒:大棚蔬菜连作次数多,病虫害发生较重。用化学药剂进行园土消毒,可杀灭依靠土壤传播的病菌,降低发病率。一般每平方米床土注入3—5克多菌灵或300克溴化甲醇,可灭菌。 Plastic greenhouses in vegetable production has been widely used, and achieved good results. However, some greenhouses are ineffective because of their unscientific management and use. Here are some ways to improve the efficiency of greenhouses. First, the garden soil disinfection: greenhouse vegetable intercropping more often, pests and diseases occur heavier. Soil disinfection with chemicals can kill bacteria that rely on soil-borne diseases and reduce morbidity. Generally per square meter of bed soil injection of 3-5 grams of carbendazim or 300 grams of brominated methanol, can be sterilized.