| 川西北高寒牧区鸭茅产草量年际动态研究 |
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| 引用本文： | 张瑞珍,何光武,张新跃,刘登锴,马涛.川西北高寒牧区鸭茅产草量年际动态研究[J].草地学报,2011,19(6):1055-1059. |
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| 作者姓名： | 张瑞珍 何光武 张新跃 刘登锴 马涛 |
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| 作者单位： | 1. 四川省草原工作总站,四川成都,610041
2. 甘孜州草原站,四川甘孜州,626000 |
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| 摘 要： | 为了探讨鸭茅(Dactylis glomerata L.)在川西北高寒牧区的生产性能和利用年限,采用田间小区试验的方法,对宝兴鸭茅、川东鸭茅和特纳诺鸭茅3个鸭茅品种连续7年(2003-2009)进行产草量动态观测试验研究.结果表明:鸭茅在该地区种植,产草量成单峰曲线,播种当年草产量较低,次年可形成生产能力,第3,4年草产量达到高峰,之后开始下降,第7年下降至播种后第2年的水平,说明鸭茅在川西北建立人工草地时,播种一次,可连续利用6～7年.
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| 关 键 词： | 川西北 高寒牧区 鸭茅 产草量 年际动态 |
Yield Dynamics of Selected Ochardgrass for Alpine Pastoral Areas in Northwest Sichuan Province |
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| ZHANG Rui-zhen
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HE Guang-wu
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ZHANG Xin-yue
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LIU Deng-kai
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MA Tao.Yield Dynamics of Selected Ochardgrass for Alpine Pastoral Areas in Northwest Sichuan Province[J].Acta Agrestia Sinica,2011,19(6):1055-1059. |
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| Authors: | ZHANG Rui-zhen HE Guang-wu ZHANG Xin-yue LIU Deng-kai MA Tao |
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| Institution: | 1.General Grassland Station of Sichuan Province,Chengdu,Sichuan Province 610041,China; 2.Ganzi Prefecture Grassland station of Sichuan Province,Ganzi Prefecture,Sichuan Province 626000,China) |
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| Abstract: | Production performance trials of Baoxing,Chuandong,and Trerano varieties of Ochardgrass(Dactylis glomerataL.) in alpine pastoral areas of northwestern Sichuan were tested and observed for growth and production during 2003-2009 in field plots.Results show that the yield of Ochardgrass grown in this region is low for first-year sowing,followed by increased production capacity annually.Yields peak at third and fourth years,then decline.Seventh-year grass production declines to the second-year level.Results indicate that established Ochardgrass grassland can be sustainable for six to seven years after sowing. |
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| Keywords: | North-western Sichuan province Ochardgrass Alpine pastoral area Yield Dynamic |
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