Abstract

                                The mobility of nitrogen and potassium in soils with sub soil compaction of bulk densities 1.5, 1.7 and 1.9 g/cc in red sandy loam soils with deccan maize as test crop was studied. The movement of nitrogen and potassium was observed to be reduced at higher bulk densities of 1.7 and 1.9 g/cc. The higher levels of nitrogen did not influence the yield of grain as well as uptake of N and K nutrients beyond an optimum bulk density of 1.7 g/cc. N at 135 kg/ha increased the yield and uptake of Nand K

Key words : Compaction, Nitrogen, Availability to Maize