<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Assessing the Fertilizer Phosphorus Requirement of Grain Sorghum"^^ . "Two methods were evaluated for determining the fertilizer phosphorus requirements (FPR) of sorghum grown on a Vertisol under rainfed conditions. The first method was based on P on applied P uptake, and grain yield relationships for grain sorghum. In this method, P uptake at a given yield was determined from the relationship between total P uptake and grain yield. The amount of fertilizer P applied for the given P uptake and grain yield was then, determined from the relationship between P applied and P uptake. In the second method, FPR was determined using the equation: FPR=(Up-U0)/PRF, where Up is P uptake at a given yield, U0 is P uptake from unfertilized soil, and PRF is the recovery of applied P. The parameters, U0, Up, and PRF were determined in a field experiment in India. There was a good agreement between the observed value of FPR and predicted values determined by the two methods. These results suggest that the simple models based on P uptake can be utilized for determining the fertilizer requirements of crops."^^ . "1999" . . "30" . "11/12" . . "Communications in Soil Science and Plant Analysis"^^ . . . . . . . . "K L"^^ . "Sahrawat"^^ . "K L Sahrawat"^^ . . . . . . "Assessing the Fertilizer Phosphorus Requirement of Grain Sorghum (PDF)"^^ . . . . . . "Assessing the Fertilizer Phosphorus Requirement of Grain Sorghum (Image (JPEG))"^^ . . . . . "HTML Summary of #1804 \n\nAssessing the Fertilizer Phosphorus Requirement of Grain Sorghum\n\n" . "text/html" . . . "Sorghum"@en . .