1. Grain and protein responses to nitrogen applied to wheat growing on a red Earth;Angus;Aust. J. Agric. Res.,1991
2. The effect of long-term reduced tillage on the infiltration of water into soil in the Victorian Wimmera and Mallee;Bissett,1992
3. Inorganic forms of nitrogen;Bremner,1965
4. Response of soil and crop water relations to tillage;Fischer,1987