CONTRIBUTION OF CLAY AND ORGANIC-MATTER TO CATION-EXCHANGE CAPACITY OF CHERNOZEMIC SOILS

[1] Buckman H.O., 1969, NATURE PROPERTIES SO

[2] HALLSWORTH E. G., 1958, JOUR AGRIC SCI, V51, P1, DOI 10.1017/S0021859600032743

[3] HELLING CHARLES S., 1964, SOIL SCI SOC AMER PROC, V28, P517

[4] LUGOLOPEZ MA, 1969, AGR U PUERTO RICO, V53, P369

[5] PAUL EA, 1969, PEDOLOGY QUATERNARY

[6] RENGER VM, 1965, Z PFLANZENERNAEHR DU, V110, P10

[7] St. ARNAUD R. J., 1963, CANADIAN JOUR SOIL SCI, V43, P336

[8] WARDER F. G., 1952, SCI AGRIC [OTTAWA], V32, P535

[1] Buckman H.O., 1969, NATURE PROPERTIES SO

[2] HALLSWORTH E. G., 1958, JOUR AGRIC SCI, V51, P1, DOI 10.1017/S0021859600032743

[3] HELLING CHARLES S., 1964, SOIL SCI SOC AMER PROC, V28, P517

[4] LUGOLOPEZ MA, 1969, AGR U PUERTO RICO, V53, P369

[5] PAUL EA, 1969, PEDOLOGY QUATERNARY

[6] RENGER VM, 1965, Z PFLANZENERNAEHR DU, V110, P10

[7] St. ARNAUD R. J., 1963, CANADIAN JOUR SOIL SCI, V43, P336

[8] WARDER F. G., 1952, SCI AGRIC [OTTAWA], V32, P535