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陕西泾阳玉米耗水规律研究
引用本文:周英,徐腊梅.陕西泾阳玉米耗水规律研究[J].南京气象学院学报,1998,21(1):125-129.
作者姓名:周英  徐腊梅
作者单位:南京气象学院应用气象学系
摘    要:根据玉米地和对照地的平行观测资料,分析了玉米发育过程中的根系吸水情况、作物耗水特点以及水分的供需矛盾。提出了玉米生长发育和产量形成过程中的需水关键期概念,并引入了作物耗水特性系数,客观定量地反映玉米耗水的生理生态特性。

关 键 词:农田蒸散  土壤吸力  零通量面  玉米  耗水规律

STUDY ON WATER CONSUMPTION IN CORN GROWTH
Zhou Ying,Xu Lamei.STUDY ON WATER CONSUMPTION IN CORN GROWTH[J].Journal of Nanjing Institute of Meteorology,1998,21(1):125-129.
Authors:Zhou Ying  Xu Lamei
Abstract:Based on observations of a corn field and an uncropped plot in Jingyang county, Shaanxi, study has been done of root water uptake and water supply consumption pattern in the crop growth season, whereby proposed is a concept of a critical water period during its development and yield formation, into which a characteristic consumption coefficient is introduced, whereby objectively and quantitatively revealed is the consumption related physiological ecological character of summer sowed corn.
Keywords:field evapotranspiration  soil  tension  zero  flux  plane  available water storage
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