草地学报

›› 2004, Vol. 12 ›› Issue (1): 57-59,65.DOI: 10.11733/j.issn.1007-0435.2004.01.013

• 研究论文 • 上一篇    下一篇

老芒麦需水特性及灌溉效果的研究

刘文清, 陈凤林   

  1. 中国农业科学院草原研究所, 呼和浩特, 010010
  • 收稿日期:2003-02-11 修回日期:2003-07-29 出版日期:2004-02-15 发布日期:2004-02-15
  • 作者简介:刘文清(1946- ),男,山东青岛人,副研究员,长期从事牧草栽培技术方面的研究,已发表学术论文17篇

Studies on Siberian Wildrye’s Water Demand and Irrigation Efficiency

LIU Wen-qing, CHEN Feng-lin   

  1. Institute of Grassland Research, CAAS. Huhhot, Inner Mongolia Autonomous Region 010010, China
  • Received:2003-02-11 Revised:2003-07-29 Online:2004-02-15 Published:2004-02-15

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摘要： 试验结果表明:生长第一年的老芒麦每形成1kg干物质需消耗0.56m3水,生长第二年需消耗0.498m3水,每形成1kg种子需要消耗水分2.766m3;老芒麦生长第一年耗水量最多在抽穗阶段,需水强度达94.35m3/hm2·d;生长第二年耗水最多在拔节到抽穗期,需水强度最高达122.1m3/hm2·d;全生育期灌水4～5次,每公顷灌溉定额2550～3000m3为好。

关键词: 草原学, 老芒麦, 需水, 灌溉

Abstract: An experiment shows that it takes 0.56 m3 of water for Siberian wildrye to produce 1 kg of hay in the first year,and 0.498 m3 of water to do the same in the second year. It takes 2.766 m3 of water for the grass to produce 1 kg of seed. The first year’s highest water consumption period falls on the heading stage,which amounts to 94.35 m~2/hm2 a day.The second year’s highest water consumption period lasts from the stem pushing to be heading stage,amounting to 122.1 m3/hm2 per day.During the growth stage Siberian wildrye needs to the watered four to five times,preferably 2550～3000 m3/hm2 each time to meet the need of the grass during its growing stage.

Key words: Grassland science, Siberian wildrye, Water need, Irrigation

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