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中国农学通报
长期定位施肥对夏玉米光合性状及产量的影响
王继芳,刘树堂,宋希云
he effect of the long-term located fertilization on summer maize photosynthetic characteristics and yield
中国农学通报 . 2009, (15): 0 .  DOI: 10.11924/j.issn.1000-6850.2009-0805