干湿交替灌溉对水稻产量与水分利用效率的影响.pdf

作物学报 ACTA AGRONOMICA SINICA 2016, 42(7): 10261036 / ISSN 0496-3490; CODEN TSHPA9 E-mail: xbzw@ DOI: 10.3724/SP.J.1006.2016.01026 干湿交替灌溉对水稻产量与水分利用效率的影响 褚 光 展明飞 朱宽宇 王志琴 杨建昌* / , 225009 : 3 24 () 6 ()2640 ( /) 7 d : (CI, ) (AWD), 2 , CI , AWD , 3 5.34%5.85%6.62%, 28.9% 25.3%27.6% , (10~20 cm) : ; ; ; ; Effects of Alternate Wetting and Drying Irrigation on Yield and Water Use Efficiency of Rice * CHU Guang, ZHAN Ming-Fei, ZHU Kuan-Yu, WANG Zhi-Qin, and YANG Jian-Chang Jiangsu Key Laboratory of Crop Genetics and Physiology / Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China Abstract: Alternate wetting and drying (AWD) irrigation has been widely adopted to replace conventional irrigation (CI) for sav- ing water and increasing water use efficiency (WUE) in irrigated rice systems in China. However, there is limited information about how AWD affects yield, WUE, and root and shoot growth and development. To fill this knowledge gap, we conducted the experiment using three local high-yielding rice cultivars, Wuyunjing 24 (japonica ), Yangliangyou 6 (two-line indica hybrid rice), and Yongyou 2640 (three-line indica/japonica hybrid rice) under the two w