About Lun Fei
About College of Resources and Environment Sciences,China Agricultural University
About Liu Junguo
About School of Environmental Science and Engineering,South University of Science and Technology of China
About Zhang Dan
About Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences
About Ziyuan Kexue
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About crop(agriculture)
About farm land
About phosphate fertilizer
About source of pollution
About output(production)
About phosphorus
About crop yield
About rural village
About dynamic model
About People's Republic of China
About area source of pollution
About 比較分析
About マテリアルフロー分析
About 食料生産
About 利用効率
About soil P balance
About P use efficiency
About cropland
About China
About Fertilizer application and efficiency
About Fertilizers in general
About 中国
About 農地
About リン
About 収支
About 利用効率
About 研究