B.Ag.Sci. Honours (2015)
Most pasture legumes can obtain a substantial amount of their N requirement from nitrogen fixation. This gives them an advantage over grasses and other non-legume pasture species under low soil N conditions. Legumes can also use water more efficiently than grasses, particularly legume species with deep root systems. The aim of this project was the quantify the N yield and water use of two pastures – pure lucerne and a cocksfoot-perennial lupin mixture – grazed by sheep in dryland conditions. Stephanie was supervised by Dr Alistair Black.