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日前,许多地方都在推广保护地蔬菜种植技术,并把蔬菜种植作为当地农民脱贫致富的一条重要途径。一些城市为了丰富市民的菜蓝子,在市郊种植反季节蔬菜,由于冬春保护地生产存在的最大问题是低温高湿,为多种病虫害的发生提供了有利的外部条件。如黄瓜霜霉病、灰霉病等都是在高温条件下才能发生。及时放风排湿和合理控制灌水,是抑制病害的有效措施,而滴灌技术的应用推广,无疑会取到事半功倍的效果。
Recently, many localities are promoting vegetable growing techniques in protected areas and regard vegetable cultivation as an important way for local farmers to get out of poverty. In order to enrich people’s vegetable basket, some cities planted anti-seasonal vegetables in the suburbs. Since the biggest problem existing in winter and spring production is low temperature and high humidity, favorable external conditions are provided for the occurrence of various pests and diseases. Such as cucumber downy mildew, gray mold and so on are in high temperature conditions can occur. Timely ventilation and humidity control and rational control of irrigation, is an effective measure to suppress disease, and the application of drip irrigation technology will undoubtedly achieve a multiplier effect.