Acta Agrestia Sinica

›› 2011, Vol. 19 ›› Issue (6): 1055-1059.DOI: 10.11733/j.issn.1007-0435.2011.06.028

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Yield Dynamics of Selected Ochardgrass for Alpine Pastoral Areas in Northwest Sichuan Province

ZHANG Rui-zhen1, HE Guang-wu1, ZHANG Xin-yue1, LIU Deng-kai2, MA Tao2   

  1. 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
  • Received:2011-06-03 Revised:2011-07-26 Online:2011-12-15 Published:2012-07-09

川西北高寒牧区鸭茅产草量年际动态研究

张瑞珍1, 何光武1, 张新跃1, 刘登锴2, 马涛2   

  1. 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
  • 通讯作者:
  • 作者简介:张瑞珍(1974- ),女,甘肃景泰人,畜牧师,硕士,从事工作是牧草高产栽培与新品种选育,E-mail:zhangruizh@yahoo.com.cn

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Abstract: Production performance trials of Baoxing,Chuandong,and Trerano varieties of Ochardgrass(Dactylis glomerata L.) 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.

Key words: North-western Sichuan province, Ochardgrass, Alpine pastoral area, Yield, Dynamic

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。

关键词: 川西北, 高寒牧区, 鸭茅, 产草量, 年际动态

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