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- [2] MINERAL-COMPOSITION OF VOLCANIC SOILS IN THE TROPICAL REGION OF COSTA-RICA [J]. SOVIET SOIL SCIENCE, 1981, 13 (04): : 95 - 102
- [4] ACTIVE ALUMINUM IN SOILS DERIVED FROM VOLCANIC ASHES IN COSTA-RICA AND GUATEMALA [J]. TURRIALBA, 1984, 34 (03): : 396 - 398
- [5] CONTENT AND RATIO OF GROUPS AND FORMS OF IRON COMPOUNDS IN THE VOLCANIC SOILS OF COSTA-RICA [J]. SOVIET SOIL SCIENCE, 1980, 12 (05): : 545 - 553
- [10] LIME REQUIREMENTS OF 3 ACID SOILS OF COSTA-RICA [J]. AGRONOMIA COSTARRICENSE, 1979, 3 (02): : 101 - 108