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The agricultural evaluation of nitrophosphate with particular references to direct and cumulative phosphate effects, and to interaction between water-solubility and granule size / by P.F.J. van Burg.
by Mattingly, G. E. G.; Burg, P. F. J. van.;
Year: 1963., Callno: 631.85 BUR
Book
Nitrogen and grassland : proceedings of the First General Meeting of the European Grassland Federation, Wageningen, 1965 / edited by P.F.J. van Burg.
by European Grassland Federation General Meeting (1st : 1965 : Wageningen); Burg, P. F. J. van.;
Year: 1966., Callno: 631.84:633.2.03 NIT
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