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Effect of different nitrogen level on root morphology and nitrogen utilization of oil flax
CUI Hong-yan, HU Fa-long§, FANG Zi-sen*, REN Pan-rong, NIU Jun-yi
中国油料作物学报 . 2015, (5): 694 .  DOI: 10.7505/j.issn.1007-9084.2015.05.016