Effects of Nitrogen Levels on Photosynthetic Characteristics of Triticum aestivum L. in Dry Farmland
GAO Su-ling, MIAO Feng, CHEN Jian-hui, XIN Long-fei, SHAO Rui-xin
ACTA AGRICULTURAE BOREALI-SINICA . 2013, (4): 169 -173 .  DOI: 10.3969/j.issn.1000-7091.2013.04.031