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Nitrogen Applying on Dry Matter Accumulation and N, P and K Absorption Efficiencies of Sweet Potato
陈娟 曲明山 郭宁 陈保华 张静 张怀文 廖洪
Journal of Agriculture . 2014, (3): 35 -38 .  DOI: 10.11924/j.issn.2095-4050.2013-xb0642