作者: M Madeira , E Auxtero , E. Sousa
DOI: 10.1016/S0016-7061(03)00125-3
关键词:
摘要: … with acidified 1 M KCl and the NH 4 + in the … exchange capacities (ECEC SM and ECEC sm ) were then calculated by taking the respective values of the sum of bases plus the 1 M KCl …