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1.床土消毒为防止土壤带菌传病,床土应选择5年内未种过同科蔬菜的大田壤土,忌用菜园土。与之混配的有机肥一定要经过高温发酵处理,充分腐熟。床土配好后要进行消毒处理,常用的方法有两种:一是按1千克福尔马林对水100千克喷洒1立方米床土,塑料膜盖严密闭4～5天后,耙松放气,让药充分发挥,两周后使用;二是药土拌种。用50%的多菌灵可湿性粉剂或70%的甲基托布津可湿性粉剂8～10克与10～15
1. Bed soil disinfection In order to prevent soil-borne diseases, soil bed should choose not to be planted within 5 years with the same field of vegetable loam soil, avoid using garden soil. Mixed with the organic fertilizer must go through high-temperature fermentation, fully decomposed. Bed soil with a good disinfection after disinfection, there are two commonly used methods: First, by 1 kg of formalin on the water spray 100 kg 1 cubic meter bed soil, plastic cover closed 4 to 5 days after the harrow loose Gas, let medicine give full play, two weeks after use; Second, soil and seed dressing. With 50% of carbendazim WP or 70% of thiophanate-methyl WP 8 to 10 grams and 10 to 15