A database of previously published studies for a systematic review on site-specific nutrient management in Africa and Asia

Data sets included in the database evaluated Site-Specific Nutrient Management (SSNM) and Farmers’ Fertilizer Practice (FFP) on maize, rice and wheat in Africa and Asia. Information captured includes, with countries, cropping systems, crop type, seasons, climatic conditions, number of replications, number of nitrogen (N) splits, N, phosphorus (P) and potassium (K) fertilizer rates, grain yield, agronomic efficiency of N (AEN), partial factor of productivity N (PFP N), total fertilizer cost (TFC), gross return, and gross return above fertilizer cost (GRF).本数据库收录的数据集针对非洲与亚洲地区的玉米、水稻及小麦，评估了特定地点养分管理（Site-Specific Nutrient Management, SSNM）与农户施肥习惯（Farmers’ Fertilizer Practice, FFP）的应用效果。所收录的信息涵盖：研究涉及国家、种植制度、作物类型、种植季、气候条件、试验重复次数、氮肥分次施用次数、氮（N）、磷（P）及钾（K）肥料施用量、籽粒产量、氮肥农学效率（Agronomic Efficiency of N, AEN）、氮肥偏生产力（Partial Factor Productivity of N, PFP_N）、总肥料成本（Total Fertilizer Cost, TFC）、总收益以及肥料成本后总收益（Gross Return Above Fertilizer Cost, GRF）。