Influence of Phosphorus Fertilizer Placement on Sub-irrigated Meadows

Abstract

On two Nebraska sub-irrigated meadows drilling phosphorus fertilizer at a depth of 3 to 4 inches resulted in lower dry matter yields and lower percentages of phosphorus as compared with surface application. By labelling superphosphate (35 lb P/ac) with 32 P it was shown that grasses, which constituted the bulk of the forage, took up less fertilizer phosphorus when the latter was drilled in than when applied on the surface.