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为促进烟叶基地单元烤烟生产发展,对5个主栽烤烟品种不同施氮水平下主要病害的发生情况进行研究,结果表明,K326品种上TMV、PVY与气候斑点病发病最重;NC102品种上TMV发病最轻,PVY病与两黑病未发生,但根结线虫病发病最重;两黑病在红花大金元上发病较重,但在其他品种上发病较轻或不发生。随施氮量增加,烟株TMV发生程度有减轻趋势,气候斑点病有加重趋势,其他病害无明显变化规律。
In order to promote the development of flue-cured tobacco production at the base of tobacco leaves, the occurrence of major diseases under different nitrogen levels in five main cultivated flue-cured tobacco varieties was studied. The results showed that the incidence of TMV, PVY and climate spot disease were highest in K326, The incidence of lightest, PVY disease and two black diseases did not occur, but the incidence of root-knot nematode disease the heaviest; two black disease in the safflower Daikin element incidence is heavier, but less severe in other species or does not occur. With the increase of nitrogen application rate, the degree of occurrence of TMV in tobacco plants tended to decrease, the trend of aggravating climate spots was aggravating, and the other diseases had no obvious changes.