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Effects of Different Potassium Concentration on Seedlings Growth of Three Varieties of Maize
安琼 王丽敏 张鹏 曹宁 张玉斌 闫飞
Chinese Agricultural Science Bulletin . 2011, (5): 115 -119 .  DOI: 10.11924/j.issn.1000-6850.2010-3171