Sorghum productivity and water use under Phosphorus fertilization in the Sudan savanna of Nigeria
<|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:'Low soil fertility and water shortage are major constraints to food production and food security in semi-arid environments.  Field  experiments were  conducted  during two  growing  seasons (2014 and  2015) in Nigeria.  The  study examined the  effects  of  Phosphorus  (P) applications on crop transpiration (ETc) water use efficiency (WUE)and agronomy phosphorus use efficiency  (APUE) and  sorghum  productivity.  The  experiments were  arranged  in split  plot  design  with five  (5) P-fertilizerlevels(0,  15,  30,  45  and  60  kg  P205ha-1)  as  the  main  plot  and  threevarieties  (CSR01, ICSV400  and  local)  as  sub-plot  in  four  replications.Results  showed  significant  differences  (P<0.05) amongthe  P  levels  and sorghum  varieties  for  grain  yield  in both  locations  and  seasons.  P increased grain yield by 19-39% over' . 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" : ["Days to flowering","Days to maturity","Grain Harvest index","Grain yield","Phosphorus","Plant height","Replication number","Sorghum","Stalk yield","Thousand Grain Weight"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Low soil fertility and water shortage are major constraints to food production and food security in semi-arid environments.  Field  experiments were  conducted  during two  growing  seasons (2014 and  2015) in Nigeria.  The  study examined the  effects  of  Phosphorus  (P) applications on crop transpiration (ETc) water use efficiency (WUE)and agronomy phosphorus use efficiency  (APUE) and  sorghum  productivity.  The  experiments were  arranged  in split  plot  design  with five  (5) P-fertilizerlevels(0,  15,  30,  45  and  60  kg  P205ha-1)  as  the  main  plot  and  threevarieties  (CSR01, ICSV400  and  local)  as  sub-plot  in  four  replications.Results  showed  significant  differences  (P<0.05) amongthe  P  levels  and sorghum  varieties  for  grain  yield  in both  locations  and  seasons.  P increased grain yield by 19-39% over' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Low soil fertility and water shortage are major constraints to food production and food security in semi-arid environments.  Field  experiments were  conducted  during two  growing  seasons (2014 and  2015) in Nigeria.  The  study examined the  effects  of  Phosphorus  (P) applications on crop transpiration (ETc) water use efficiency (WUE)and agronomy phosphorus use efficiency  (APUE) and  sorghum  productivity.  The  experiments were  arranged  in split  plot  design  with five  (5) P-fertilizerlevels(0,  15,  30,  45  and  60  kg  P205ha-1)  as  the  main  plot  and  threevarieties  (CSR01, ICSV400  and  local)  as  sub-plot  in  four  replications.Results  showed  significant  differences  (P<0.05) amongthe  P  levels  and sorghum  varieties  for  grain  yield  in both  locations  and  seasons.  P increased grain yield by 19-39% over
Days to flowering; Days to maturity; Grain Harvest index; Grain yield; Phosphorus; Plant height; Replication number; Sorghum; Stalk yield; Thousand Grain Weight