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Influence of Controlled Release Nitrogen Fertilizer on Growth and Nitrogen Fertilizer Utilization Ratio of the Lettuce
Huang Yun, Liao Tiejun, Wang Zhenyin, Xiang Huahui
Chinese Agricultural Science Bulletin . 2006, (2): 219 -219 .  DOI: 10.11924/j.issn.1000-6850.0602219