| 不同种类杂草危害对水稻产量影响 |
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| 引用本文： | 岳茂峰,冯莉,田兴山,梁帝允,杨彩宏,杨红梅,崔烨.不同种类杂草危害对水稻产量影响[J].广东农业科学,2012,39(13):98-99,109. |
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| 作者姓名： | 岳茂峰 冯莉 田兴山 梁帝允 杨彩宏 杨红梅 崔烨 |
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| 作者单位： | 1. 广东省农科院植物保护研究所/广东省植物保护新技术重点实验室,广东广州,510640
2. 全国农业技术推广服务中心,北京,100125 |
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| 基金项目： | 国家公益性行业(农业)科研专项，广东省科技计划项目 |
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| 摘 要： | 在常年稻田中设置禾本科杂草、莎草科杂草、阔叶类杂草以及混合杂草自然发生区,研究不同种类杂草危害对水稻产量的影响。结果表明,禾本科杂草区以稗草(Echinochloa crusgalli)为主,密度为102.8茎/m2,产量损失为65.09%;莎草科杂草区以异型莎草(Cyperus difformis)为主,杂草密度为240.2茎/m2,产量损失为56.82%;阔叶类杂草区以节节菜(Rotala indica)为主,杂草密度为183.6茎/m2,产量损失为31.84%;混合杂草区杂草群落主要以稗草(Echinochloa crusgalli)+异型莎草(Cyperus difformis)+节节菜(Rotala indica)为主,总密度为253.2茎/m2,产量损失达70.51%。禾本科杂草区、莎草科杂草区、阔叶类杂草区水稻产量差异显著;以杂草单茎危害率衡量不同类型杂草对水稻产量损失的影响依次为禾本科杂草>莎草科杂草>阔叶类杂草。
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| 关 键 词： | 禾本科杂草 莎草科杂草 阔叶类杂草 水稻 产量损失 |
Influence on rice yield loss caused by different kinds of weeds |
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| YUE Mao-feng
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FENG Li
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TIAN Xing-shan
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LIANG Di-yun
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YANG Cai-hong
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YANG Hong-mei
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CUI Ye.Influence on rice yield loss caused by different kinds of weeds[J].Guangdong Agricultural Sciences,2012,39(13):98-99,109. |
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| Authors: | YUE Mao-feng FENG Li TIAN Xing-shan LIANG Di-yun YANG Cai-hong YANG Hong-mei CUI Ye |
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| Institution: | 1(1.Institute of Plant Protection,Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of High Technology for Plant Protection,Guangzhou 510640,China;2.National Agricultural Technology Extension and Service Center,Beijing 100125,China) |
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| Abstract: | This research was conducted to study the influence of different kinds of weeds to rice yield in paddy field by settings grass weeds plots,sedge plots,broadleaf weeds plots and mixed weeds plots.The results showed that weed density of grass weeds plots was 102.8 stem/m2 mainly constituted by Echinochloa crusgalli with yield loss of 65.09%;weed density of sedge plots was 240.2 stem/m2 mainly constituted by Cyperus difformis with yield loss of 56.82%;weed density of broadleaf weeds plots was 183.6 stem/m2 mainly constituted by Rotala indica with yield loss of 31.84%.Weed density of mixed weeds plots was 253.2 stem/m2 mainly constituted by Echinochloa crusgalli,Cyperus difformis and Rotala indica with yield loss of 70.51%.There was significant difference among the rice yield of grass weeds plots,sedge plots and broadleaf weeds plots.The damage rate per stem caused by grass weeds was the largest,followed by sedge and broadleaf weeds |
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| Keywords: | grass weeds sedge broadleaf weeds rice yield loss |
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