Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and on a long ley: II. N, P and K removed by the crops
Widdowson, F. V., Penny, A. and Williams, Rodney
(1967)
Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and on a long ley: II. N, P and K removed by the crops.
The Journal of Agricultural Science, 68 (2).
pp. 293-300.
10.1017/S0021859600016361
RESP-5565
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