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缓释尿素施用量对韭菜生长和土壤有效氮的影响
卢威 杨开静 李东坡 于立芝 汤丽娟
Effect of Different Doses of Controlled-release-urea on the Growth of Chinese Chive and Soil Available Nitrogen
中国农学通报 . 2012, (4): 236 -239 .  DOI: 10.11924/j.issn.1000-6850.2011-2606