The Effects of Nitrogen on Photosynthesis and Activities of Cellular Protection Enzymes in Cotton Cultivars with Different Senescing Properties
ZHANG Hai-na, LI Cun-dong, XIAO Kai
ACTA AGRICULTURAE BOREALI-SINICA . 2008, (5): 170 -174 .  DOI: 10.7668/hbnxb.2008.05.037