连年免耕稻田纹枯病为害研究

Studies on Rhizoctonia solani Kühn Damage in the Continuous No-tillage Paddy

以特优649和博优253为供试水稻品种,设免耕点播、免耕撒播、免耕抛秧、常耕插秧4个处理,经过两年四造试验,结果表明,4个处理纹枯病的丛发病率和病情指数差异不显著。

With Teyou 649 and Boyou 253 as tested rice cultivars,designed no-tillage and direct seeding,no-tillage and broadcast,no-tillage and cast transplanting,conventional tillage and transplanting as four treatments,four experiments were done during two years.Results showed that the difference of bundle incidence and disease index of Rhizoctonia solani Kühn were not significant at all four treatments.