TY - JOUR A1 - Baquy, M. A.-A. A1 - Li, J.-Y. A1 - Xu, C.-Y. A1 - Mehmood, K. A1 - Xu, R.-K. T1 - Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops JO - Solid Earth J1 - SE VL - 8 IS - 1 SP - 149 EP - 159 Y1 - 2017/02/09 PB - Copernicus Publications SN - 1869-9529 UR - https://se.copernicus.org/articles/8/149/2017/ L1 - https://se.copernicus.org/articles/8/149/2017/se-8-149-2017.pdf DO - 10.5194/se-8-149-2017 ER -