半干旱区不同灌溉水源对芹菜生长特性和产量的影响
李拥军, 赵晓乐

Effects of different irtigation sources on growth characteristics and yields of celery in semi-arid region
LI Yongjun, ZHAO Xiaole
图1 芹菜生育期灌溉量和降水量
Fig.1 Irrigation and precipitation of celery during the growth period