CAJ | 학술논문

玉米顶腐病的初侵染来源是种子、土壤、病残体带菌,其中种子带菌是远距离传播的主要途径.缺乏抗病品种和耕作质量下降是发病严重的主要原因.系统侵染是该病害发生的主要方式,再侵染发生在感病品种抽穗前后的新叶上,对植株生长和产量形成无重要影响.采取种植抗病品种、轮作倒茬、秋翻灭茬、增施磷、钾、钙元素等保健栽培技术和化学农药喷洒相结合的生态控防措施,可取得较好的防治效果.
옥미정부병적초침염래원시충자、토양、병잔체대균,기중충자대균시원거리전파적주요도경.결핍항병품충화경작질량하강시발병엄중적주요원인.계통침염시해병해발생적주요방식,재침염발생재감병품충추수전후적신협상,대식주생장화산량형성무중요영향.채취충식항병품충、륜작도치、추번멸치、증시린、갑、개원소등보건재배기술화화학농약분쇄상결합적생태공방조시,가취득교호적방치효과.
Top rot of corn is a systemic infectious diseases. Seeds, soil and plant debris are the primary infection sources. Varieties lack resistance and poor tillage managements are the main causes. Secondary infection occurs in the young leaves of susceptible varieties before or after heading, but it will not affect plant growth and yield. Varieties with high resistance, improvement of cultivation technology and application of chemical pesticides seem to prevent the prevalence or control the damage of this disease.