@book{c4c22f080f1f4ea4a36717374f10ea55,
title = "Orienterend onderzoek naar de ervaringen met ontginning en verbetering van tropische gronden in Brazilie : interim rapport",
keywords = "plantenvoeding, kunstmeststoffen, mest, grondanalyse, ontginning, bossen, landbouw, plantenecologie, vegetatie, brazili{\"e}, agrarische bedrijfsvoering, plant nutrition, fertilizers, manures, soil analysis, reclamation, forests, agriculture, plant ecology, vegetation, brazil, farm management",
author = "J.G. Heymeyer",
year = "1968",
language = "Dutch",
publisher = "ILRI",
}