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在对玉米青枯病的病原和发病规律有了初步了解的基础上,设计了不同N、P、K配合比例和施肥水平以及药剂处理的防治试验。从试验和调查中均证明,病害的发生与肥料的关系甚大。偏施、多施氮素化肥的发病率最高,产量最低;N、P、K三要素配合施用的发病轻或不发病,产量也较高;施用农家肥的发病也较轻,产量却最高。反正弦代换方差分析结果,差异极显著。在本试验中,药剂防治效果不显著。因此,防治本病应采取选用抗病品种和加强栽培管理为主的综合防治措施。
Based on the preliminary understanding of the pathogens and pathogenesis of corn bacterial wilt, the control experiments of different N, P, K compounding proportion and fertilization level and pesticide treatment were designed. From the tests and surveys have proved that the incidence of diseases and fertilizer have a great relationship. Partial application of nitrogen fertilizer more than the highest incidence, the lowest yield; N, P, K three elements with the application of light or no incidence of disease, the yield is higher; the incidence of manure application lighter, but the highest yield. Sine-substitution analysis of variance results, the difference was significant. In this experiment, the effect of drug control is not significant. Therefore, the prevention and treatment of this disease should be taken to select resistant varieties and strengthen the cultivation and management of comprehensive prevention and control measures.