Aluminum and Calcium Constraints to Continuous Crop Production in a Brazilian Amazon Oxisol

@article{Smyth1992AluminumAC,
  title={Aluminum and Calcium Constraints to Continuous Crop Production in a Brazilian Amazon Oxisol},
  author={Timothy J. Smyth and Manoel da Silva Cravo},
  journal={Agronomy Journal},
  year={1992},
  volume={84},
  pages={843-850}
}