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冬春塑料大棚蔬菜生产存在的最大问题是:低温高湿易发生多种病害。及时放风排湿和合理控制灌水,是抑制病害的有效措施,推广滴灌技术能取得事半功倍的效果。 1.滴灌的优点 滴灌就是用低压输水管由滴头对土壤进行缓慢
Spring and winter plastic greenhouse vegetable production is the biggest problem is: low temperature and humidity prone to a variety of diseases. Timely ventilation and humidity and reasonable control of irrigation, is an effective measure to suppress disease, promotion of drip irrigation technology can achieve a multiplier effect. 1. Advantages of drip irrigation drip irrigation is the use of low-pressure pipe by the drip on the soil slowly