| 稻田双穗雀稗生物学特性、发生危害及防控 |
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| 引用本文： | 王修慧,陆永良,廖冬如,李浩元,余柳青,邱任华. 稻田双穗雀稗生物学特性、发生危害及防控[J]. 江西农业学报, 2011, 0(10): 121-124,127 |
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| 作者姓名： | 王修慧 陆永良 廖冬如 李浩元 余柳青 邱任华 |
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| 作者单位： | 江西省恒湖垦殖场;中国水稻研究所;江西农业工程职业学院;江西省珠湖农场; |
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| 基金项目： | 国家现代水稻产业技术体系专项(nycytx-01) |
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| 摘 要： | 2010年对鄱阳湖区东北部、中部、西南部三地的中晚稻田抽样调查表明,该区稻田双穗雀稗的发生频率为70.69%～86.21%,发生密度为0.12～0.29株/m2。对机插晚稻田间双穗雀稗的危害损失测定表明,水稻产量损失与双穗雀稗密度、植株鲜重有显著的正相关性,在产量损失构成因素中以有效穗数、穗实粒数影响占主导;每1.26 m2内有双穗雀稗1、2、3、5株,产量损失率分别达到17.24%、27.33%、49.13%、57.78%,每株双穗雀稗可使水稻减产11.0%～17.0%。提出了耕前灭生除草、农艺措施控草、苗期使用选择性除草剂的综合防控技术。
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| 关 键 词： | 双穗雀稗 生物学特性 水稻产量损失率 防控技术 鄱阳湖区 |
Biological Characteristics,Occurrence,Damage and Control of Paspalum distichum in Rice Field |
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| WANG Xiu-hui,LU Yong-liang,LIAO Dong-ru,LI Hao-yuan,YU Liu-qing,QIU Ren-hua. Biological Characteristics,Occurrence,Damage and Control of Paspalum distichum in Rice Field[J]. Acta Agriculturae Jiangxi, 2011, 0(10): 121-124,127 |
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| Authors: | WANG Xiu-hui LU Yong-liang LIAO Dong-ru LI Hao-yuan YU Liu-qing QIU Ren-hua |
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| Affiliation: | WANG Xiu-hui1,LU Yong-liang2,LIAO Dong-ru3,LI Hao-yuan1,YU Liu-qing2,QIU Ren-hua4(1.Henghu Farm in Jiangxi Province,Xinjian 330123,China,2.China National Rice Research Institute,Hangzhou 310006,3.Jiangxi Vocational College of Agricultural Engineering,Zhangshu 331200,4.Zhuhu Animal Farm in Jiangxi Province,Poyang 333129,China) |
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| Abstract: | The middle and late rice fields in the northeast,center and southwest part of the Poyang Lake area were sampled and surveyed in 2010,the results indicated that the occurrence frequency of Paspalum distichum L.was from 70.69% to 86.21% in the rice field,and the occurrence density of this weed was 0.12~0.29 plants per square meter.The rice yield loss caused by Paspalum distichum in mechanically-transplanted late rice fields was determined,it was found that the rice yield loss had obvious positive correlation ... |
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| Keywords: | Paspalum distichum Biological characteristics Loss rate of rice yield Control technique Poyang Lake area |
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