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N-release Characteristics of Controlled Release Urea Coated with Natural Organic Material and Its Biological Efficiency on Chinese Cabbage
王恩飞 崔智多 蒋小姝 莫海涛 张小勇
Chinese Agricultural Science Bulletin . 2012, (30): 90 -94 .  DOI: 10.11924/j.issn.1000-6850.2011-3919