A database of previously published studies for a systematic review on site-specific nutrient management in Africa and Asia
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'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)' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["maize","rice","Site-Specific Nutrient Management","smallholder farming systems","wheat"]} <|eot_id|>
 Here is the Description of a dataset. Description:'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)' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
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)
maize; rice; Site-Specific Nutrient Management; smallholder farming systems; wheat