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Citation: B. Wick et al., SOIL MICROBIOLOGICAL PARAMETERS AS INDICATORS OF SOIL QUALITY UNDER IMPROVED FALLOW MANAGEMENT-SYSTEMS IN SOUTH-WESTERN NIGERIA, Plant and soil, 202(1), 1998, pp. 97-107

Authors: VLEK PLG KUHNE RF DENICH M

Citation: Plg. Vlek et al., NUTRIENT RESOURCES FOR CROP PRODUCTION IN THE TROPICS, Philosophical transactions-Royal Society of London. Biological sciences, 352(1356), 1997, pp. 975-984

Authors: AKONDE TP KUHNE RF STEINMULLER N LEIHNER DE

Citation: Tp. Akonde et al., ALLEY CROPPING ON AN ULTISOL IN SUBHUMID BENIN .3. NUTRIENT BUDGET OFMAIZE, CASSAVA AND TREES, Agroforestry systems, 37(3), 1997, pp. 213-226