De Jager, J. M.Howard, Micheal David2022-06-022022-06-021993-11http://hdl.handle.net/11660/11652Abstract not availableenDissertation (M.Sc.Agric. (Agricultural Economics))--University of the Free State, 1993Nitrogen fertilizersSoils -- Nitrogen contentEffect of nitrogen on plantsSimulation studies on Digitaria eriantha Steud. Subsp. eriantha at differing soil nitrogen levelsDissertationUniversity of the Free State