TY - JOUR N2 - Simple and multiple regression analyses was used to examine the relationships between cation exchange capacity (CEC) and organic matter, and clay content of 40 surface Philippine soils to determine the contributions of organic matter and clay to CEC. CEC was significantly correlated to organic matter (r = 0.512) and clay (r = 0.580) contents. Multiple regression analysis showed that on average organic matter and clay fractions contributed 37.6 and 62.4% respectively to the CEC of the soils. It was also found that 60% variation in CEC could be solely attributed to the variation in organic matter and clay contents together. AV - restricted A1 - Sahrawat, K L TI - An analysis of the contribution of organic matter and clay to cation exchange capacity of some philippine soils UR - http://dx.doi.org/10.1080/00103628309367409 JF - Communications in Soil Science and Plant Analysis SP - 803 Y1 - 1983/// ID - icrisat4228 EP - 809 SN - 0010-3624 VL - 14 PB - Taylor & Francis IS - 9 ER -