Assessment of fertilizer P residues in a calcareous vertisol

@article{Warren2004AssessmentOF,
  title={Assessment of fertilizer P residues in a calcareous vertisol},
  author={Garth Warren and Kanwar Lal Sahrawat},
  journal={Fertilizer research},
  year={2004},
  volume={34},
  pages={45-53}
}
The amounts of available P in a Typic Pellustert containing different levels of residual fertilizer P were assessed in a field experiment and chemically with cation-anion-exchange resin, using: (i) P desorbed after 1 extraction, (ii) cumulative P from 8 extractions [Resin8-P] and (iii) the asymptote of the extraction curve. P exchangeable to32P, Olsen-P and… CONTINUE READING