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Effects of Nitrogen Application Level on Nitrogen Absorption and Efficiency of Maize ‘Qianxing201’
宋碧 张军 刘兵 龚成兴 郭天英 张荣达 唐义
Chinese Agricultural Science Bulletin . 2013, (30): 50 -54 .  DOI: 10.11924/j.issn.1000-6850.2012-3507