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Original Articles

A case history of a national fertilizer experiment

Pages 93-96 | Published online: 11 Nov 2008

References

  • Mallarino , A.P. and Blackmer , A.M. 1992 . Comparison of methods for determining critical concentrations of soil test phosphorus for corn . Agron. J. , 84 : 850 – 856 .
  • Thomas , G.W. 1989 . The soil bank account and the farmer's bank account . J. Prod. Agric. , 2 : 122 – 124 .
  • Wallace , A. and Procopiou , J. 1982 . A statistical analysis of crop responses to nitrogen and phosphorus fertilizers in Greece . Comm. Soil Sci. Plant Anal. , 13 : 7 – 19 .
  • Wallace , A. and Wallace , G.A. 1990 . The meaning of multiple fraction yield plot (MFYP) in conventional and high technological agriculture and also in environmentally safe agriculture . J. Plant Nutr. , 13 : 309 – 466 .

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