Acta Agrestia Sinica ›› 2017, Vol. 25 ›› Issue (6): 1380-1388.DOI: 10.11733/j.issn.1007-0435.2017.06.032

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Study on the Effects of Alfalfa Growth and Yield under the Different Water Treatments in the Cold and Dry Region

CAO Biao, HE Jian-cun, BAI Yun-gang   

  1. Xinjiang Research Institute of Water Resources and Hydropower, Urumqi, Xinjiang 830049, China
  • Received:2017-04-14 Revised:2018-01-14 Online:2017-12-15 Published:2018-03-30

寒旱荒漠地区不同灌水处理对紫花苜蓿生长与产量的影响

曹彪, 何建村, 白云岗   

  1. 新疆水利水电科学研究院, 新疆 乌鲁木齐 830049
  • 作者简介:曹彪(1987-),男,硕士,工程师,主要从事节水灌溉技术及牧区水利方面研究,E-mail:657282699@qq.com
  • 基金资助:

    新疆自治区科技支撑项目(201431107)资助

Abstract:

To establish a reasonable irrigation system on Medicago sativa L that grown in the cold and arid area, we studied the suitable irrigation cycle and irrigation amount. The subsurface drip irrigation experiment of Medicago sativa L was carried out. The effects of irrigation cycle and irrigation amount on plant height, stem diameter and dry matter accumulation of M. sativa L at different growth stages were analyzed by ANOVA and SPSS 18.0. The results showed that the effects of irrigation time and irrigation amount on the plant height, stem diameter and dry matter accumulation of M. sativa L were different at different growth stages. It can achieve the effect of saving water and increasing production could be realized through a reasonable arrangement of irrigation cycle and irrigation amount. The suitable irrigation amount was 6 450 m3·hm2 in the whole growth period of Medicago sativa L in the cold and arid area. The first cutting irrigation times was about 8, and the total irrigation amount was 3 075 m3·hm2. The second cutting irrigation times was about 10, and the total irrigation amount was 3 375 m3·hm2.

Key words: Medicago sativa L, Irrigation cycle, Irrigation amount, Irrigation system

摘要:

为了研究寒旱荒漠地区紫花苜蓿(Medicago sativa L.)适宜的灌水周期和灌水量,寻找合理的灌溉制度,对紫花苜蓿在浅埋式滴灌条件下开展了大田滴灌试验,采用双因素方差分析法,分析了灌水周期和灌水定额对不同生育阶段紫花苜蓿株高、茎粗和干物质积累的影响。结果表明:灌水周期和灌水定额对不同生育阶段的紫花苜蓿株高、茎粗和干物质积累量影响程度各不相同,合理安排灌水周期和灌水定额可以达到节水增产的效果。寒旱荒漠地区紫花苜蓿全生育期适当的灌水总量约为6 450 m3·hm-2。其中第一茬紫花苜蓿灌水约8次,灌水量约为3 075 m3·hm-2;第二茬紫花苜蓿灌水约10次,灌水量约3 375 m3·hm-2

关键词: 紫花苜蓿, 灌水周期, 灌水定额, 灌溉制度

CLC Number: