SOIL SCIENCE PROJECT TOPICS AND MATERIALS

Showing all 58 results

Aggregate stability of Nkpologu sandy loam soil under different soil and crop management systems
APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEM IN SOIL SURVEY AND VEGETATION ASSESSMENT FOR CONSERVATION AND BIODIVERSITY MANAGEMENT OF KAMUKU NATIONAL PARK, KADUNA STATE, NIGERIA
ASSESSMENT OF HETEROGENITY IN SOIL PROPERTIES OF NIMBIA FOREST RESERVE IN SOUTHERN GUINEA SAVANNAH OF NIGERIA FOR SITE SPECIFIC MANAGEMENT
ASSESSMENT OF VERTICAL TRANSPORT OF LEAD (Pb) FROM A FREE DRAINAGE LYSIMETER IN CONTAMINATED SOILS IN SUDAN SAVANNA OF NIGERIA
CHARACTERIZATION AND EVALUATION OF FOUR TOPOSEQUENCES IN EHA-ALUMONA, EASTERN NIGERIACHARACTERIZATION AND EVALUATION OF FOUR TOPOSEQUENCES IN EHA-ALUMONA, EASTERN NIGERIA
CHARACTERIZATION AND MAPPING OF GULLY EROSION FEATURES IN TWO GEOLOGICAL FORMATIONS OF EASTERN NIGERIA USING GLOBAL POSITIONING SYSTEM (GPS) AND SATELLITE AERIAL PHOTO
CHARACTERIZATION AND MAPPING OF GULLY EROSION FEATURES IN TWO GEOLOGICAL FORMATIONS OF EASTERN NIGERIA USING GLOBAL POSITIONING SYSTEM (GPS) AND SATELLITE AERIAL PHOTO
CHARACTERIZATION, CLASSIFICATION AND SUITABILITY ASSESSMENT OF SOILS FOR SELECTED ARABLE CROPS PRODUCTION IN BENDE LOCAL GOVERNMENT AREA OF ABIA STATE, NIGERIA
COMPARATIVE ANALYSIS OF THE PHYSICAL CHARACTERISTICS OF WATER STABLE AGGREGATES IN SOME FOREST AND CULTIVATED SOILS OF ENUGU STATE, SOUTH EASTERN NIGERIA.
COMPARATIVE EFFECTS OF LIME, POULTRY MANURE AND NPK COMPOUND FERTILIZER ON SOIL PHYSICOCHEMICAL PROPERTIES AND YIELD OF MAIZE IN AN ULTISOL OF SOUTHEASTERN NIGERIA.
COMPARISON OF THE PHYSICOCHEMIAL POTENTIAL OF BOILER ASH, POULTRY DROPPINGS AND INORGANIC FERTILIZER AND THEIR EFFECTS ON ULTISOL AND MAIZE PERFORMANCE IN SOUTH EASTERN NIGERIA
CONCRETIONARY NODULES AS NUTRIENTS SINKS AND THEIR EFFECT ON PHOSPHATE ADSORPTION IN A PLINTHIC HAPLUSTALF
CONTAMINATION ASSESSMENT OF SPENT POT LINING WASTE FROM ALUMINUIM SMELTER PLANT ON SOIL ENVIRONMENT IN AKWA IBOM STATE
EFFECT OF LAND USE AND SLOPE GRADIENTS ON SELECTED PROPERTIES AND SOIL QUALITY OF AN ALFISOL IN AFAKA FOREST, NORTHERN GUINEA SAVANNA OF NIGERIA
EFFECT OF LANDUSE TYPES ON GEOCHEMISTRY OF SOIL IN THE NORTHERN GUINEA SAVANNA OF NIGERIA
EFFECT OF LONG TERM ROTATION, NITROGEN FERTILIZER AND TILLAGE ON SOIL QUALITY AND MAIZE YIELD IN THE NORTHERN GUINEA SAVANNA OF NIGERIA
EFFECT OF MOLYBDENUM FERTILIZATION ON SEED MOLYBDENUM CONTENT, NODULATION AND YIELD OF GROUNDNUT AND COWPEA GENOTYPES IN A SAVANNA ALFISOL
EFFECT OF POULTRY MANURE AND NPK FERTILIZER ON THE GROWTH AND YIELD OF OKRA (Abelmoschus esculentus (L) moench)
EFFECT OF SELECTED FORAGE LEGUMES ON SOIL QUALITY AND MAIZE YIELD IN THE SAVANNA
EFFECT OF TILLAGE, SORGHUM/DESMODIUM INTERCROP AND FERTILIZER RATES ON SOIL QUALITY IN THE NORTHERN GUINEA SAVANNA
EFFECTS OF COVER MANAGEMENT PRACTICES ON PHYSICAL PROPERTIES, RUNOFF AND EROSION IN NSUKKA SANDY LOAM SOIL
EFFECTS OF INTEGRATED SOIL FERTILITY MANAGEMENT TECHNOLOGY ON SOIL FERTILITY AND CROP PRODUCTIVITY OF SMALL HOLDER FARMS IN IKARA, NORTHERN GUINEA SAVANNA OF NIGERIA
EFFECTS OF NITROGEN AND MICRONUTRIENTS ON YIELD AND PROTEIN QUALITY OF MAIZE IN A NORTHERN GUINEA SAVANNA ALFISOL OF NIGERIA
EFFECTS OF SAWAH WATER MANAGEMENT SYSTEMS ON SOIL PROPERTIES AND RICE GRAIN YIELD IN EBONYI STATE SOUTHEASTERN NIGERIA
EVALUATING THE EFFECTIVENESS OF FOUR SELECTED METHODS OF INVESTIGATING SOIL EROSION EFFECT ON SOIL PRODUCTIVITY IN NSUKKA, ENUGU STATE, NIGERIA
EVALUATION OF MAIZE-DESMODIUM -SOYBEAN CROPPING EFFECT ON SOIL QUALITY AND CROP YIELDS IN AN ALFISOLS OF NORTHERN GUINEA SAVANNA, NIGERIA
EVALUATION OF THE CAUSES OF SOIL DEGRADATION AROUND A TOWNSHIP WATER TREATMENT PLANT AT AJIWA IN KATSINA STATE, NIGERIA
HYDRAULIC CHARACTERISTICS AND TEMPORAL VARIABILITY OF SOIL PROPERTIES UNDER A LONG-TERM TRIAL IN SAMARU, NORTHERN GUINEASAVANNA OF NIGERIA
IMPACT OF TOPOGRAPHY ON DISTRIBUTION OF SOILS FORMED FROM BASEMENT COMPLEX ROCKS IN PART OF KUBANNI BASIN, NORTHERN NIGERIA
INFLUENCE OF COMPACTION AND MOISTURE REGIME ON PERFORMANCE OF RHIZOBIUM-INOCULATED SOYBEAN (Glycine max L. Merill) IN AN ALFISOL OF NORTHERN GUINEA SAVANNA OF NIGERIA
INFLUENCE OF PARENT MATERIALS ON COMPOSITION AND QUALITY OF PLINTHITE AS A RAW MATERIAL FOR THE BUILDING AND CONSTRUCTION INDUSTRY
ISOLATION AND CHARACTERISATION OF INDIGENOUS RHIZOBIA AND RESPONSE TO INOCULATION BY PROMISCUOUS SOYBEAN IN THE NIGERIAN SAVANNA
KINETICS OF PHOSPHATE RELEASE IN SOME FOREST AND SAVANNA SOILS
KINETICS OF SULPHATE DESORPTION IN SELECTED SOILS AS INFLUENCED BY PARENT MATERIALS AND BIOCHAR IN BAUCHI NORTH, SUDAN SAVANNA, NIGERIA
LAND EVALUATION USING CONVENTIONAL AND SATELLITE DATA TECHNIQUES IN TOMAS IRRIGATION SCHEME, KANO STATE, NIGERIA
LAND SUITABILITY EVALUATION FOR SOME SELECTED LAND USE TYPES IN THE INSTITUTE FOR AGRICULTURAL RESEARCH FARM, ZARIA, NIGERIA
MAIZE RESPONSE TO COWDUNG, NITROGEN AND SULPHUR FERTILIZATION AND EFFECT ON SOIL PROPERTIES IN A NORTHERN GUINEA SAVANNAH ALFISOL OF NIGERIA
MAXIMIZING YIELD AND NET RETURNS TO NITROGEN, PHOSPHORUS AND POTASSIUM FERTILIZER APPLICATION IN RICE (Oryza sativa. L) PRODUCTION ON LOWLAND SOILS
MORPHOLOGY, CHARACTERIZATION AND CLASSIFICATION OF SOILS OF API-RIVER FLOOD PLAIN IN OPI, SOUTHEASTERN NIGERIA
NITROGEN MANAGEMENT OPTIONS FOR IRRIGATED AND RAIN-FED RICE (Oryza sativa L.) VARIETIES IN SUDAN SAVANNA OF NIGERIA
OPTIMIZATION OF BIOLOGICAL NITROGEN FIXATON AND YIELD OF GROUNDNUT (Arachishypogaea L.) IN A SAVANNA ALFISOL THROUGH FERTILIZER APPLICATION AND SOIL AMENDMENT
OPTIMIZED INORGANIC FERTILIZER APPLICATION ON SORGHUM YIELD AND NITROGEN USE EFFICIENCIES IN THE NIGERIAN SAVANNA
PEDOGENESIS OF A LITHOSEQUENCE IN THE NORTHERN GUINEA SAVANNA OF KADUNA STATE, NIGERIA
PHOSPHATE MOBILIZATION BY ADDITION OF ORGANIC ACIDS IN TWO SOILS OF THE SOUTHERN GUINEA SAVANNA OF NIGRIA
PHYSICAL QUALITY OF AN ALFISOL AS INFLUENCED BY CULTIVATION OF JATROPHA CURCAS L. AT SAMARU, NORTHERN NIGERIA
RESPONSE OF GROUNDNUT (Arachis hypogaea L.) TO RHIZOBIA INOCULATION, NITROGEN AND PHOSPHORUS FERTILIZERS ON AN ALFISOL IN THE NORTHERN GUINEA SAVANNA OF NIGERIA BY MARTHA TIMOTHY BULUS DEPARTMENT OF SOIL SCIENCE, FACULTY OF AGRICULTURE, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA OCTOBER,
SOIL CHARACTERIZATION AND LAND SUITABILITY EVALUATION OF ANUKA FARMLAND IN NSUKKA LOCAL GOVERNMENT AREA OF ENUGU STATE, NIGERIA
SOIL DISPERSION AND HYDRAULIC CONDUCTIVITY IN RELATION TO CLAY CONTENT, EXCHANGEABLE SODIUM PERCENTAGE AND ELECTROLYTE CONCENTRATION IN SOILS OF SOUTHEASTERN NIGERIA
SOIL ORGANIC CARBON SEQUESTRATION POTENTIALS IN AGGREGATE FRACTIONS OF CULTIVATED AND UNCULTIVATED SOILS OF SOUTHEASTERN NIGERIA
SOIL QUALITY AND MAIZE YIELD AS INFLUENCED BY TILLAGE/LEGUME MANAGEMENT AND FERTILIZER RATES IN SAMARU ALFISOLS, NIGERIA
SYMBIOTIC NITROGEN FIXATION AND CONTRIBUTION TO SOIL NITROGEN BY GROUNDNUT (ARACHIS HYPOGAEA L) GENOTYPES IN THE NORTHERN GUINEA SAVANNA OF NIGERIA
THE EESPONSE OF SOYBEAN {Glycine max (L. ) Merr) TO SULPHUR FERTILIZATION ON SELECTED SOILS OF THE NIGERIAN SAVANNA
THE EFFECT OF SEWAGE EFFLUENT ON THE PERMEABILITY OF SOIL
THE MICROENVIRONMENT OF A CEREAL BASED INTERCROP AT SAMARU. NORTHERN NIGERIA
THE RESPONSE OF MAIZE (Zea mavs L.) TO SOIL AND FOLIAR APPLIED UREA IN NORTHERN GUINEA SAVANNA OF NIGERIA
THE USE OF ORGANIC MANURE SUPPLEMENTED WITH INORGANIC FERTILIZER IN CROP PRODUCTION IN THE NORTHERN GUINEA SAVANNA ZONE OF NIGERIA
UPWARD WATER AND SALT MOVEMENT IN LABORATORY COLUMNS AS AFFECTED BY DEPTH OF WATER TABLE
VARIABILITY WITHIN COWPEA GENOTYPES TO APPLIED PHOSPHORUS AND RESIDUAL EFFECT ON SORGHUM PRODUCTION ON P DEFICIENT SOILS OF SUDAN AND SAHEL SAVANNAS.

SOIL SCIENCE PROJECT TOPICS AND MATERIALS

Aggregate stability of Nkpologu sandy loam soil under different soil and crop management systems

APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEM IN SOIL SURVEY AND VEGETATION ASSESSMENT FOR CONSERVATION AND BIODIVERSITY MANAGEMENT OF KAMUKU NATIONAL PARK, KADUNA STATE, NIGERIA

ASSESSMENT OF HETEROGENITY IN SOIL PROPERTIES OF NIMBIA FOREST RESERVE IN SOUTHERN GUINEA SAVANNAH OF NIGERIA FOR SITE SPECIFIC MANAGEMENT

ASSESSMENT OF VERTICAL TRANSPORT OF LEAD (Pb) FROM A FREE DRAINAGE LYSIMETER IN CONTAMINATED SOILS IN SUDAN SAVANNA OF NIGERIA

CHARACTERIZATION AND EVALUATION OF FOUR TOPOSEQUENCES IN EHA-ALUMONA, EASTERN NIGERIACHARACTERIZATION AND EVALUATION OF FOUR TOPOSEQUENCES IN EHA-ALUMONA, EASTERN NIGERIA

CHARACTERIZATION AND MAPPING OF GULLY EROSION FEATURES IN TWO GEOLOGICAL FORMATIONS OF EASTERN NIGERIA USING GLOBAL POSITIONING SYSTEM (GPS) AND SATELLITE AERIAL PHOTO

CHARACTERIZATION AND MAPPING OF GULLY EROSION FEATURES IN TWO GEOLOGICAL FORMATIONS OF EASTERN NIGERIA USING GLOBAL POSITIONING SYSTEM (GPS) AND SATELLITE AERIAL PHOTO

CHARACTERIZATION, CLASSIFICATION AND SUITABILITY ASSESSMENT OF SOILS FOR SELECTED ARABLE CROPS PRODUCTION IN BENDE LOCAL GOVERNMENT AREA OF ABIA STATE, NIGERIA

COMPARATIVE ANALYSIS OF THE PHYSICAL CHARACTERISTICS OF WATER STABLE AGGREGATES IN SOME FOREST AND CULTIVATED SOILS OF ENUGU STATE, SOUTH EASTERN NIGERIA.

COMPARATIVE EFFECTS OF LIME, POULTRY MANURE AND NPK COMPOUND FERTILIZER ON SOIL PHYSICOCHEMICAL PROPERTIES AND YIELD OF MAIZE IN AN ULTISOL OF SOUTHEASTERN NIGERIA.

COMPARISON OF THE PHYSICOCHEMIAL POTENTIAL OF BOILER ASH, POULTRY DROPPINGS AND INORGANIC FERTILIZER AND THEIR EFFECTS ON ULTISOL AND MAIZE PERFORMANCE IN SOUTH EASTERN NIGERIA

CONCRETIONARY NODULES AS NUTRIENTS SINKS AND THEIR EFFECT ON PHOSPHATE ADSORPTION IN A PLINTHIC HAPLUSTALF

CONTAMINATION ASSESSMENT OF SPENT POT LINING WASTE FROM ALUMINUIM SMELTER PLANT ON SOIL ENVIRONMENT IN AKWA IBOM STATE

EFFECT OF LAND USE AND SLOPE GRADIENTS ON SELECTED PROPERTIES AND SOIL QUALITY OF AN ALFISOL IN AFAKA FOREST, NORTHERN GUINEA SAVANNA OF NIGERIA

EFFECT OF LANDUSE TYPES ON GEOCHEMISTRY OF SOIL IN THE NORTHERN GUINEA SAVANNA OF NIGERIA

EFFECT OF LONG TERM ROTATION, NITROGEN FERTILIZER AND TILLAGE ON SOIL QUALITY AND MAIZE YIELD IN THE NORTHERN GUINEA SAVANNA OF NIGERIA

EFFECT OF MOLYBDENUM FERTILIZATION ON SEED MOLYBDENUM CONTENT, NODULATION AND YIELD OF GROUNDNUT AND COWPEA GENOTYPES IN A SAVANNA ALFISOL

EFFECT OF POULTRY MANURE AND NPK FERTILIZER ON THE GROWTH AND YIELD OF OKRA (Abelmoschus esculentus (L) moench)

EFFECT OF SELECTED FORAGE LEGUMES ON SOIL QUALITY AND MAIZE YIELD IN THE SAVANNA

EFFECT OF TILLAGE, SORGHUM/DESMODIUM INTERCROP AND FERTILIZER RATES ON SOIL QUALITY IN THE NORTHERN GUINEA SAVANNA

EFFECTS OF COVER MANAGEMENT PRACTICES ON PHYSICAL PROPERTIES, RUNOFF AND EROSION IN NSUKKA SANDY LOAM SOIL

EFFECTS OF INTEGRATED SOIL FERTILITY MANAGEMENT TECHNOLOGY ON SOIL FERTILITY AND CROP PRODUCTIVITY OF SMALL HOLDER FARMS IN IKARA, NORTHERN GUINEA SAVANNA OF NIGERIA

EFFECTS OF NITROGEN AND MICRONUTRIENTS ON YIELD AND PROTEIN QUALITY OF MAIZE IN A NORTHERN GUINEA SAVANNA ALFISOL OF NIGERIA

EFFECTS OF SAWAH WATER MANAGEMENT SYSTEMS ON SOIL PROPERTIES AND RICE GRAIN YIELD IN EBONYI STATE SOUTHEASTERN NIGERIA

EVALUATING THE EFFECTIVENESS OF FOUR SELECTED METHODS OF INVESTIGATING SOIL EROSION EFFECT ON SOIL PRODUCTIVITY IN NSUKKA, ENUGU STATE, NIGERIA

EVALUATION OF MAIZE-DESMODIUM -SOYBEAN CROPPING EFFECT ON SOIL QUALITY AND CROP YIELDS IN AN ALFISOLS OF NORTHERN GUINEA SAVANNA, NIGERIA

EVALUATION OF THE CAUSES OF SOIL DEGRADATION AROUND A TOWNSHIP WATER TREATMENT PLANT AT AJIWA IN KATSINA STATE, NIGERIA

HYDRAULIC CHARACTERISTICS AND TEMPORAL VARIABILITY OF SOIL PROPERTIES UNDER A LONG-TERM TRIAL IN SAMARU, NORTHERN GUINEASAVANNA OF NIGERIA

IMPACT OF TOPOGRAPHY ON DISTRIBUTION OF SOILS FORMED FROM BASEMENT COMPLEX ROCKS IN PART OF KUBANNI BASIN, NORTHERN NIGERIA

INFLUENCE OF COMPACTION AND MOISTURE REGIME ON PERFORMANCE OF RHIZOBIUM-INOCULATED SOYBEAN (Glycine max L. Merill) IN AN ALFISOL OF NORTHERN GUINEA SAVANNA OF NIGERIA

INFLUENCE OF PARENT MATERIALS ON COMPOSITION AND QUALITY OF PLINTHITE AS A RAW MATERIAL FOR THE BUILDING AND CONSTRUCTION INDUSTRY

ISOLATION AND CHARACTERISATION OF INDIGENOUS RHIZOBIA AND RESPONSE TO INOCULATION BY PROMISCUOUS SOYBEAN IN THE NIGERIAN SAVANNA

KINETICS OF PHOSPHATE RELEASE IN SOME FOREST AND SAVANNA SOILS

KINETICS OF SULPHATE DESORPTION IN SELECTED SOILS AS INFLUENCED BY PARENT MATERIALS AND BIOCHAR IN BAUCHI NORTH, SUDAN SAVANNA, NIGERIA

LAND EVALUATION USING CONVENTIONAL AND SATELLITE DATA TECHNIQUES IN TOMAS IRRIGATION SCHEME, KANO STATE, NIGERIA

LAND SUITABILITY EVALUATION FOR SOME SELECTED LAND USE TYPES IN THE INSTITUTE FOR AGRICULTURAL RESEARCH FARM, ZARIA, NIGERIA

MAIZE RESPONSE TO COWDUNG, NITROGEN AND SULPHUR FERTILIZATION AND EFFECT ON SOIL PROPERTIES IN A NORTHERN GUINEA SAVANNAH ALFISOL OF NIGERIA

MAXIMIZING YIELD AND NET RETURNS TO NITROGEN, PHOSPHORUS AND POTASSIUM FERTILIZER APPLICATION IN RICE (Oryza sativa. L) PRODUCTION ON LOWLAND SOILS

MORPHOLOGY, CHARACTERIZATION AND CLASSIFICATION OF SOILS OF API-RIVER FLOOD PLAIN IN OPI, SOUTHEASTERN NIGERIA

NITROGEN MANAGEMENT OPTIONS FOR IRRIGATED AND RAIN-FED RICE (Oryza sativa L.) VARIETIES IN SUDAN SAVANNA OF NIGERIA

OPTIMIZATION OF BIOLOGICAL NITROGEN FIXATON AND YIELD OF GROUNDNUT (Arachishypogaea L.) IN A SAVANNA ALFISOL THROUGH FERTILIZER APPLICATION AND SOIL AMENDMENT

OPTIMIZED INORGANIC FERTILIZER APPLICATION ON SORGHUM YIELD AND NITROGEN USE EFFICIENCIES IN THE NIGERIAN SAVANNA

PEDOGENESIS OF A LITHOSEQUENCE IN THE NORTHERN GUINEA SAVANNA OF KADUNA STATE, NIGERIA

PHOSPHATE MOBILIZATION BY ADDITION OF ORGANIC ACIDS IN TWO SOILS OF THE SOUTHERN GUINEA SAVANNA OF NIGRIA

PHYSICAL QUALITY OF AN ALFISOL AS INFLUENCED BY CULTIVATION OF JATROPHA CURCAS L. AT SAMARU, NORTHERN NIGERIA

RESPONSE OF GROUNDNUT (Arachis hypogaea L.) TO RHIZOBIA INOCULATION, NITROGEN AND PHOSPHORUS FERTILIZERS ON AN ALFISOL IN THE NORTHERN GUINEA SAVANNA OF NIGERIA BY MARTHA TIMOTHY BULUS DEPARTMENT OF SOIL SCIENCE, FACULTY OF AGRICULTURE, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA OCTOBER,

SOIL CHARACTERIZATION AND LAND SUITABILITY EVALUATION OF ANUKA FARMLAND IN NSUKKA LOCAL GOVERNMENT AREA OF ENUGU STATE, NIGERIA

SOIL DISPERSION AND HYDRAULIC CONDUCTIVITY IN RELATION TO CLAY CONTENT, EXCHANGEABLE SODIUM PERCENTAGE AND ELECTROLYTE CONCENTRATION IN SOILS OF SOUTHEASTERN NIGERIA

SOIL ORGANIC CARBON SEQUESTRATION POTENTIALS IN AGGREGATE FRACTIONS OF CULTIVATED AND UNCULTIVATED SOILS OF SOUTHEASTERN NIGERIA

SOIL QUALITY AND MAIZE YIELD AS INFLUENCED BY TILLAGE/LEGUME MANAGEMENT AND FERTILIZER RATES IN SAMARU ALFISOLS, NIGERIA

SYMBIOTIC NITROGEN FIXATION AND CONTRIBUTION TO SOIL NITROGEN BY GROUNDNUT (ARACHIS HYPOGAEA L) GENOTYPES IN THE NORTHERN GUINEA SAVANNA OF NIGERIA

THE EESPONSE OF SOYBEAN {Glycine max (L. ) Merr) TO SULPHUR FERTILIZATION ON SELECTED SOILS OF THE NIGERIAN SAVANNA

THE EFFECT OF SEWAGE EFFLUENT ON THE PERMEABILITY OF SOIL

THE MICROENVIRONMENT OF A CEREAL BASED INTERCROP AT SAMARU. NORTHERN NIGERIA

THE RESPONSE OF MAIZE (Zea mavs L.) TO SOIL AND FOLIAR APPLIED UREA IN NORTHERN GUINEA SAVANNA OF NIGERIA

THE USE OF ORGANIC MANURE SUPPLEMENTED WITH INORGANIC FERTILIZER IN CROP PRODUCTION IN THE NORTHERN GUINEA SAVANNA ZONE OF NIGERIA

UPWARD WATER AND SALT MOVEMENT IN LABORATORY COLUMNS AS AFFECTED BY DEPTH OF WATER TABLE

VARIABILITY WITHIN COWPEA GENOTYPES TO APPLIED PHOSPHORUS AND RESIDUAL EFFECT ON SORGHUM PRODUCTION ON P DEFICIENT SOILS OF SUDAN AND SAHEL SAVANNAS.