An Assessment of the Variation of Manure Nitrogen Efficiency throughout Europe and an Appraisal of Means to Increase Manure-N Efficiency

1. Webb, J.
2. Sørensen, P.
3. Velthof, G.
4. Amon, B.
5. Pinto, M.
6. Rodhe, L.
7. Salomon, E.
8. Hutchings, N.
9. Burczyk, P.
10. Reid, J.