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保护地生产无公害蔬菜,山东寿光市总结的经验是: 1.轮作换茬 例如瓜类轮作可明显减轻病害。种植两年以上的蔬菜大棚,在夏秋季种大葱,对根病和土传病害有明显防效。 2、清洁田园 将病残株体、落叶、病果清出棚外烧毁或深埋,以减少病虫基数。 3.降低棚内湿度 灌水要适时适量,不要大水漫灌。浇水应选晴天上午,浇后通风排湿,降低棚内湿度,不利于病害发生。
Protection of the production of pollution-free vegetables, Shouguang City, Shandong Province summed up the experience is: 1. Crop rotation crop such as melon rotation can significantly reduce disease. Planting more than two years of greenhouses in the summer and autumn species of green onions, root disease and soil-borne diseases have significant control effect. 2, clean the garden will be stubble, deciduous, sick fruit clear shed burned or buried in order to reduce pest base. 3. To reduce the humidity shed timely and appropriate amount, not flood irrigation. Watering should be sunny morning, pouring ventilation after wetting, reduce shed humidity is not conducive to disease.