The electrostatically bonded (EB)-H+ and EB-Al3+ acidities constituted 39.3 and 60.7 per cent of exchangeable acidity while pH dependent and exchange acidities comprised 92.2 and 7.8 per cent of total acidity, respectively. Various forms of acidities are significantly related to pH, organic carbon, exchangeable and extractable A13+ and exchangeable Ca3+ and Mg2+. Land use pattern also affect the various forms of acidities considerably. Shifting cultivation increased all forms of acidities whereas the terrace cultivation brought them to the lowest magnitude.
Forms of acidity, electrostatically bonded H+ and Al3+ acidities, shifting and terrace cultivation
