Animal feed : an important fertiliser input source /
Malmqvist, S.-O.
Göransson, L.(Leif)
Fertiliser Society.
York : Fertiliser Society,
c1997.
Contents: Pt.  1: Phosphorus /   S-O Malmqvist part -- pt. 2: Nitrogen in pig feeds /    L. Göransson.
Paper presented to the Fertiliser Society in Cambridge, on the 12th December 1997.
Bibliography: p16.
Feeds
Fertilizers
Phosphatic fertilizers
Biofertilizers