Acta Agrestia Sinica ›› 2017, Vol. 25 ›› Issue (6): 1227-1231.DOI: 10.11733/j.issn.1007-0435.2017.06.010

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Water Requirement Regularity and Irrigation Quota of Alfalfa in Yuyang District

SUN Hong-ren1, YANG Xiao-jie2, CHEN Zhen3, ZHANG Bo-yu4, REN Yu-tian5   

  1. 1. Institute of Grassland Science, China Agricultural University, Beijing 100193, China;
    2. Tiantongyuan Southstreet Agency of Changping District, Beijing 102218, China;
    3. Feed and Forage Monitoring and Testing Station of Yulin City, Yulin, Shaanxi Province 719000, China;
    4. Grassland Work Station of Yuyang District, Yulin, Shaanxi Province 719000, China;
    5. Meteorological Bureau of Yulin City, Yulin, Shaanxi Province 719000, China
  • Received:2017-07-17 Revised:2018-01-12 Online:2017-12-15 Published:2018-03-30

榆阳区紫花苜蓿需水规律与灌溉定额

孙洪仁1, 杨晓洁2, 陈真3, 任榆田4, 田红卫5, 张博宇5   

  1. 1. 中国农业大学草地研究所, 北京 100193;
    2. 北京市昌平区天通苑南街道办事处, 北京 102218;
    3. 陕西省榆林市饲料饲草监测检验站, 陕西 榆林 719000;
    4. 陕西省榆林市榆阳区草原工作站, 陕西 榆林 719000;
    5. 陕西省榆林市气象局, 陕西 榆林 719000
  • 通讯作者: 孙洪仁,E-mail:sunhongren@cau.edu.cn
  • 作者简介:孙洪仁(1965-),男,吉林怀德人,硕士,副教授,主要从事牧草与作物水肥管理研究,E-mail:sunhongren@cau.edu.cn
  • 基金资助:

    农业部公益性行业项目“苜蓿高效种植技术研究与示范”(201403048);国家现代农业产业技术体系建设项目“现代牧草产业技术体系建设”(CARS-35)资助

Abstract:

To provide a scientific basis for alfalfa(Medicago sativa L.) irrigation in Yuyang district of Yulin city of Shaanxi province(YDYCSP), the water requirement regularity and irrigation quota of alfalfa in YDYCSP were studied using the 20 years meteorological data from 1996 to 2015 of YDYCSP and the method of FAO Penman-Monteith equation. The results showed that the water requirement of alfalfa in YDYCSP from the first to fourth harvest, growing season, non-growing season, and full year were 221, 187, 169, 179, 755, 70 and 825 mm, respectively. The rate of water requirement were 4.3, 4.7, 4.1, 2.5, 3.7, 0.4 and 2.3 mm·d-1, respectively. The irrigation requirement were 194, 118, 66, 131, 508, 56 and 564 mm, respectively. The irrigation quota were 228, 139, 78, 154, 598, 66 and 664 mm, respectively.

Key words: Yuyang district, Alfalfa, Irrigation quota, Water requirement regularity, Water requirement, Water requirement rate, Irrigation requirement

摘要:

为了给陕西省榆林市榆阳区紫花苜蓿(Medicago sativa L.)灌溉提供科学依据,利用1996-2015年20年气象数据,采用联合国粮农组织推荐的彭曼-蒙特斯公式法,研究了榆阳区紫花苜蓿需水规律和灌溉定额。结果表明,榆阳区紫花苜蓿第1~4茬、生长季、非生长季和全年需水量分别为249、194、177、199、819、74和893 mm,需水强度分别为4.1、4.8、4.3、2.4、3.7、0.5和2.5 mm·d-1,灌溉需水量分别为209、143、79、98、529、57和586 mm,灌溉定额分别为246、168、93、115、622、67和689 mm。

关键词: 榆阳区, 紫花苜蓿, 灌溉定额, 需水规律, 需水量, 需水强度, 灌溉需水量

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