| 供氮水平对间作水稻稻瘟病发生和传播的影响* |
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| 引用本文： | 卢国理,楚轶欧,张朝春,周文利,郑 毅,张福锁,朱有勇,汤 利.供氮水平对间作水稻稻瘟病发生和传播的影响*[J].云南农业大学学报,2007,22(6):808-812. |
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| 作者姓名： | 卢国理 楚轶欧 张朝春 周文利 郑 毅 张福锁 朱有勇 汤 利 |
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| 作者单位： | 云南农业大学资源与环境学院 云南昆明650201(卢国理，楚轶欧，周文利，郑毅，汤利)，中国农业大学植物营养系 北京100094(张朝春，张福锁)，云南农业大学云南省植物病理重点实验室 云南昆明650201(朱有勇) |
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| 基金项目： | 国家自然科学基金资助项目(30460061)，云南省省院省校合作项目(2003FCCF03A009)，云南省自然科学基金资助项目(2003C0040M,2003C0041M) |
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| 摘 要： | 采用大尺度田间试验，研究了黄壳糯和合系-41两个品种间作种植条件下，供氮水平对黄壳糯稻瘟病发生和传播的影响。结果表明：高氮供应N300(300 kg N/hm2)不仅显著增加了单作黄壳糯叶瘟和穗瘟的发生，而且其传播有明显的风向性,顺、逆风向上较为明显，垂直风向上则是随着远离中心，水稻稻瘟病发病趋势越小。相比之下，常规氮肥N180(180 kg N/ hm2)黄壳糯和合系-41间作对稻瘟病有极为显著的控制效果，其中叶瘟和穗瘟发病率下降幅度分别达15.0%~61.0%和47.0%~82.0%。
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| 关 键 词： | 供氮水平 间作水稻 稻瘟病 传播 |
| 文章编号： | 1004-390X（2007）06-0808-05 |
| 收稿时间： | 2007-1-5 |
| 修稿时间： | 2007-01-05 |
Effect on Rice Blast Incidence and Spreading in High Nitrogen Rate under Rice Inter-planting System |
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| LU Guo-li,CHU Yi-ou,ZHANG Chao-chun,ZHOU Wen-li,ZHENG Yi,ZHANG Fu-suo,ZHU You-yong,TANG-Li.Effect on Rice Blast Incidence and Spreading in High Nitrogen Rate under Rice Inter-planting System[J].Journal of Yunnan Agricultural University,2007,22(6):808-812. |
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| Authors: | LU Guo-li CHU Yi-ou ZHANG Chao-chun ZHOU Wen-li ZHENG Yi ZHANG Fu-suo ZHU You-yong TANG-Li |
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| Institution: | 1. Faculty of Resource and Environmental Science, Yunnan Agricultural University, Kunming 650201, China; 2. Department of Plant Nutrition, China Agricultural University, Beijing 100094, China; 3. The Key Laborary for Plant Pathology of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China |
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| Abstract: | Field experiment was conducted to study effect of high nitrogen rate on rice blast incidence and spreading under Huangkenuo and Hexi-41 rice inter-planting system.The results showed that higher rate nitrogen application(300 kg N/hm2) not only caused a severer rice blast occurrence center,but also spread in every direction.In contrast,lower rate nitrogen application(180 kg N/hm2) had a significant effect on controlling the inter-planted rice blast incidence,especially doing the highly susceptible Huangkenuo,with leaf blast and neck blast incidence being reduced to varying by 15.0%~61.0% and by 47.0%~82.0% on the Huangkenuo varieties under rice inter-planting system. |
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| Keywords: | nitrogen application rate inter-planting rice rice blast spread |
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