| 氮钾肥用量对水稻主要病虫害发生及产量的影响 |
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| 引用本文： | 张舒,罗汉钢,张求东,许艳云,邹春华,郭茂禄,何世民,方锡文,张继新,陈其志. 氮钾肥用量对水稻主要病虫害发生及产量的影响[J]. 华中农业大学学报, 2008, 27(6) |
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| 作者姓名： | 张舒 罗汉钢 张求东 许艳云 邹春华 郭茂禄 何世民 方锡文 张继新 陈其志 |
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| 作者单位： | 湖北省农业科学院植保土肥研究所,武汉,430064;湖北省植物保护总站,武汉,430070;湖北省蕲春县农业局,蕲春,436300 |
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| 基金项目： | 国家科技支撑计划项目 ， 国家粮食丰产科技工程项目 ， 湖北省农业科技创新中心项目资助 |
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| 摘 要： | 以晚稻中9优288为材料,观察了氮肥和钾肥用量对水稻病虫害发生及产量的影响。结果表明,水稻施氮量增加,水稻纹枯病Rhizoctonia solani、稻纵卷叶螟Cnaphalocrocis medinakls、三化螟Scirpophpag in-certulas发生危害呈加重趋势,水稻产量渐增,至最高产量后,继续增加氮肥施用量,则产量反而下降;水稻施钾量增加,水稻纹枯病、稻纵卷叶螟、三化螟发生危害减轻,在供试条件下钾肥施用量与水稻产量呈显著正相关。
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| 关 键 词： | 氮肥 钾肥 水稻 病虫害 产量 |
Effects of Nitrogen and Potassium Fertilizer Applications on Yield and Occurrence of Major Diseases and Insect Pests of Rice |
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| ZHANG Shu,LUO Han-gang,ZHANG Qiu-dong,XU Yan-yun,ZOU Chun-hua,GUO Mao-lu,HE Shi-min,FANG Xi-wen,ZHANG ji-xin,CHEN Qi-zhi. Effects of Nitrogen and Potassium Fertilizer Applications on Yield and Occurrence of Major Diseases and Insect Pests of Rice[J]. Journal of Huazhong Agricultural University, 2008, 27(6) |
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| Authors: | ZHANG Shu LUO Han-gang ZHANG Qiu-dong XU Yan-yun ZOU Chun-hua GUO Mao-lu HE Shi-min FANG Xi-wen ZHANG ji-xin CHEN Qi-zhi |
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| Abstract: | Effects of nitrogen and potassium fertilizer applications on yield and occurrence of major diseases and insect pests of rice were studied by using the rice variety Zhong 9 You 288.The results showed that the major diseases and insect pests of rice,such as rice sheath blight,rice leaf folders and yellow stem borer,were aggravated with the increase of the dosage of nitrogen and reduced with the increasing the dosage of potassium.The rice yield was raised in the early treatments to a maximum output,while it de... |
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| Keywords: | nitrogen fertilizer potassium fertilizer rice disease and insect pest yield |
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