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A Study on the Contents of N/P/K and Soluble Sugar in Leaves and Stems for Perennial Upland Cotton
陈国平1,2,张新1,周瑞阳1,赵洪涛1
Chinese Agricultural Science Bulletin . 2010, (7): 72 -77 .  DOI: 10.11924/j.issn.1000-6850.2009-2433