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Sciences in Cold and Arid Regions ›› 2016, Vol. 8 ›› Issue (4): 334-342.doi: 10.3724/SP.J.1226.2016.00334

• ARTICLES • Previous Articles    

Impact of soil conditions on the physiological characteristics of maize plants in an arid region, Northwest China

LiWen Zhao1,2, ZhiBin He1,2, WenZhi Zhao1,2   

  1. 1. Linze Inland River Basin Research Station, Chinese Ecosystem Network Research, Lanzhou, Gansu 730000, China;
    2. Key Laboratory of Ecohydrology of Inland River Basin, Cold and Arid Regions Environmental and Engineering Re-search Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
  • Received:2016-04-10 Revised:2016-06-21 Published:2018-11-23
  • Contact: LiWen Zhao, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences. No. 320, West Donggang Road, Lanzhou, Gansu 730000, China. Tel:+86 13919797860; E-mail:zhaoli-wen@lzb.ac.cn E-mail:zhaoli-wen@lzb.ac.cn
  • Supported by:
    This work was supported by the China Postdoctoral Science Foundation (Grant No. 2015M572622) and the National Natural Science Foundation of China (Grant No. 41501044). The authors greatly appreciate the help from Prof. YongZhong Su, Dr. XiBin Ji and Dr. BoWen Jin in carrying out the experiments.

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Abstract: Overuse of irrigation water to ensure the crop yield of maize plants has caused serious water shortage problems in the middle reach of Heihe River, China. Thus, further research on the physiological characteristics, i.e., photosynthetic rate and leaf transpiration rate, are urgently needed to develop an efficient irrigation management system. In this paper, we selected two common soil textures (sandy loam, sand) and three one-time irrigation volumes (60 mm, 20 mm, 0 mm) in order to analyze the impact of soil conditions on the physiological characteristics of maize plants. Physiological and meteorological factors, soil water content and plant growing parameters were synchronously monitored on Jun. 30, Jul. 25 and Aug. 27 of 2012. The results indicate that sandy loam is better than sand for the growth of maize plants and single irrigation may provide limited influence on the physiological characteristics. Thus, increasing irrigation times and decreasing one-time volume is suggested for an efficient irrigation system.

Key words: photosynthesis, leaf transpiration, water use efficiency, maize plant, soil water content

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