N.P.K. residues from fertilisers and farmyard manure, in long-term experiments at Rothamstead /
Warren, R. G.
Fertiliser Society.
Rothamsted Experimental Station.
London : Fertiliser Society,
[1956]
"Paper read before the Fertiliser Society in London on 23rd February, 1956."
Includes bibliographical references.
Fertilizers.
Farm manure.
Soil exhaustion.
Soil fertility.
Soils