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中国沙漠 ›› 1999, Vol. 19 ›› Issue (s1): 137-139.

• 论文 • 上一篇    下一篇

科尔沁沙地玉米耗水规律初探

张铜会, 赵哈林, 赵学勇, 赵爱芬   

  1. 中国科学院兰州沙漠研究所, 兰州 730000
  • 出版日期:1999-12-31 发布日期:1999-12-31
  • 基金资助:
    本文得到96-920-13-02、49890330、980121、KE-952-91-218、KE-95 T-04-01-04项目的资助

Study on Water Consumption of Spring Maize in Horqin Sandy Land

ZHANG Tong-hui, ZHAO Ha-lin, ZHAO Xue-yong, ZHAO Ai-fen   

  1. Institute of Desert Research, Chinese Academy of Sicences, Lanzhou 730000, China
  • Online:1999-12-31 Published:1999-12-31

摘要: 运用蒸渗仪对沙地玉米的耗水量做了测定研究。结果表明,玉米在本地区的耗水量为464.6mm,其中播种-拔节期为67.7mm,拔节-抽穗期为164.4mm,抽穗-灌浆期为102.2mm,灌浆-成熟期130.3mm;水分生产率为10.84kg·hm-2·mm-1;沙地玉米田的日蒸散曲线在苗期和拔节期呈现抛物线型,但在抽穗和灌浆期则为一个双峰曲线;本地区的降水不能满足玉米的生长需要,需灌溉予以补充。

关键词: 科尔沁沙地, 玉米, 蒸渗仪, 耗水量

Abstract: The water consumption of spring maize (Huangbao 417) was measured by Lysimeter in sandy cropland at Naiman Station of Dersertification Research, Naiman Banner, Inner Mongolia. The results show that the water consumption of spring maize is 464.6 mm, in which 67.7 mm, 164.4 mm, 102.2 mm and 130.3 mm are relatively used in the periods from sowing to elongation stage, from elongation to heading stage, from heading to the stage of grain in milk and from the stage of grain in milk to harvesting stage; the water use efficiency is 10.84 kg·hm-2·mm-1; the curves of diurnal evapotranspiration of spring maize are parabolic pattern at seedling stage and elongation stage, and that are double peak pattern at the stage of grain in milk and at maturity stage; the precipitation of spring maize from sowing to harvesting is not enough for it to grow well unless irrigation.

Key words: Horqin Sandy Land, Spring maize, Lysimeter, Water consumption

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