Application of anhydrous ammonia or urea during the fallow period for winter cereals on the Darling Downs, Queensland. II : The recovery of 15N by wheat and sorghum in soil and plant at harvest

@inproceedings{Strong1992ApplicationOA,
  title={Application of anhydrous ammonia or urea during the fallow period for winter cereals on the Darling Downs, Queensland. II : The recovery of 15N by wheat and sorghum in soil and plant at harvest},
  author={Wm Strong and Paul G. Saffigna and James Erwin. Cooper and A. L. Cogle},
  year={1992}
}