[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(02):56-60.[doi:10.11942/j.issn1002-2767.2021.02.0056]
不同农业措施对向日葵菌核病发生的影响
- 文献标志码:
- A
- 摘要:
- 为揭示影响向日葵菌核病发生的农业措施，本文对不同的播期、种植密度、施肥量与向日葵苗腐病、盘腐病发生的关系进行了研究，并提出农业管理措施建议。结果表明：不论品种抗病与否，适时晚播均可降低菌核病的危害，且向日葵种植密度越大，菌核病发病越重；随氮肥用量的增加，子囊盘数量和病情指数增大。磷钾肥用量增加，对病情指数影响不大。因此，生产上采用推迟10 d播种，种植株距为70 cm，氮肥用量45 kg?hm-2，磷肥用量40 kg?hm-2或钾肥用量90 kg?hm-2可降低向日葵菌核病的发生，提高向日葵产量。
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备注/Memo
收稿日期：2020-11-24