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每年4月中下旬,特别是当寒潮侵袭之后,塑料薄膜育苗秧田常发生稻苗立枯病。这种病害多发生在早播秧田,致病菌以禾谷镰刀菌为主,还有腐霉菌、丝核菌等。对由于病菌侵染引起的立枯病除了加强苗田管理外,最有效的方法是及时用敌克松作抢救处理。具体方法是:70％敌克松原粉兑水1,000倍,每平方米喷洒4斤药液。施用敌克松后,绿色木霉菌数量急剧上升,而丝核菌数量急剧下降,多种镰刀菌也受到抑制。这就是敌克松对稻苗侵染性立枯病奏效的主要原因。敌克松对稻苗还有明显的壮苗作用,这是由于敌克松
In late April of each year, especially when the cold wave attacks, seedling blight often occurs in plastic film nursery seedlings. This disease occurs in early sowing seedling, pathogenic bacteria mainly Fusarium graminear, as well as Pythium, Rhizoctonia and so on. In addition to strengthening the seedling management due to the blight caused by pathogen infection, the most effective way is to promptly use the enemy Kesong for rescue treatment. The specific method is: 70% of the original fleece fleece 1,000 times watered, spraying 4 pounds per square meter of liquid medicine. The amount of Trichoderma viride increased sharply after the application of Dictyostelium, while the number of Rhizoctonia decreased sharply and various Fusarium species were also inhibited. This is the main reason why the enemy Kesong is effective against rice blight. The enemy Kesong rice seedlings have obvious strong seedlings, which is due to the enemy Kesi