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Aspect of the biology of Rastrococcus sp.（Hemiptera：Psuedococcidae）on Acalypha hispida in southern guinea savanna of Nigeria
Acalypha antenna instar Rastroccocus savanna stylet
2009/3/3
The biology and description of various developmental stages of the mealybug found on the green acalypha plant in Ogbomoso, Southern Guinea Savanna was evaluated. The study shows that the stylets o...
Hydrothermal effects on the performance of maize and cucumber intercrop in a tropical wet and dry climate in Nigeria
Hydrothermal agro-meteorological precipitation
2010/9/10
Maize and cucumber were intercropped in a simple randomized complete block design (RCBD) with three replicates in two field trials in early and late planting seasons of 2004. The result showed that me...
Participatory assessment of the impact of Women in Agriculture Programme of Borno State, Nigeria
Participatory assessment Women Agriculture Programme Borno State
2009/2/20
This study assessed the impact of the Women in Agriculture (WIA) programme of Borno State, Nigeria. Primary data were collected using a structured questionnaire administered to 90 WIA participants s...
Longevity of maize（Zea mays L.）seeds during low input storage under ambient conditions of southwestern Nigeria
Probit analysis Seed conservation Tropical seed storage
2009/2/19
Seed longevity of two commercial hybrid maize (Zea mays L.) varieties (‘Oba-Super’ and ‘Suwan-1’) were evaluated under simulated low-input seed storage systems typical of the tropics. Saturated salt...
Agronomic traits and tuber quality attributes of farmer grown cassava（Manihot esculenta）landraces in Nigeria
Africa Cyanogenic potential Cassava germplasm Mealiness
2009/2/19
Eleven Nigerian cassava landraces with desirable pest and disease resistance were evaluated for 18 agronomic and tuber quality traits along with two popularly grown cultivars including an improved gen...
Genetic variability of fresh fruit bunch yield in Deli/dura x tenera breeding populations of oil palm（Elaeis guineensis Jacq）in Nigeria
Deli/dura x tenera Heritability Phenotypic coefficient of variation Genotypic coefficient of variation
2009/2/19
A study was conducted to assess the extent of genetic variability, broad-sense heritability, and correlation between yield and yield components in three Deli/dura x tenera (DxT) breeding populations. ...
Growth and yield of white guinea yam（Dioscorea rotundata Poir.）influenced by NPK fertilization on a forest site in Nigeria
Crop growth rate Leaf area index Total dry matter yield
2009/2/19
Two field experiments were conducted at Evboneka in Edo State, Nigeria to determine the optimum fertilizer requirement of white guinea yam (Dioscorea rotundata Poir) and to develop an efficient fert...
Traditional Farmer-Managed Irrigation System in Central Nigeria
community-managed irrigation farmer organization off-season crop production rice production water management
2010/3/4
This paper examines the characteristics of a traditional farmer-managed irrigation system in Nigeria, through the presentation of a detailed case study. It documents the development of a traditional i...
The Influence of Minisett Size on the Profitability of Yam Production in Edo State, Nigeria
Forest Forest-Savanna transition minisett seed yam profitability technical efficiency
2010/11/11
This study compared the influence of different minisett sizes (ranging from 25g to 50g) on the
profit realizable from yam production in the Forest and Forest-Savanna transition zones of Edo State, wi...
Distribution of carbohydrate pools within water-stable aggregates of an Ultisol in Southern Nigeria
carbohydrate concentrations water-stable aggregates Nigerian Ultiso
2008/11/26
R-CHOc, irrespective of the type of amendment. The distribution of the carbohydrate fractions within the water-stable aggregates generally decreased with increasing time of sampling. At the 3rd and 6...
Application of SLEMSA and USLE erosion models for potential erosion hazard mapping in south-eastern nigeria
topography erodibility tropics West Africa cartography
2008/11/24
Assessment of potential soil erosion aids in detailed farm planning and management. Two potential erosion hazard maps of Anambra and Enugu States of Nigeria were developed by the application of SLEMSA...
Effects of land use on some structural properties of an Ultisol in south-eastern Nigeria
structure sustainability porosity aggregate stability soil conservation
2008/11/24
0.25 mm, volumetric moisture content at field capacity (FC) and organic matter content. Structural properties which are affected by land use are total porosity, bulk density, and organic matter.
...
Some factors affecting clay dispersion and aggregate stability in selected soils of Nigeria
aggregate stability aggregated clay chemical extractants tropics water-dispersible clay
2008/11/24
Using 22 soil samples from Nigeria, comprising Alfisols, Entisols, Inceptisols, Ultisols and Vertisols with 77- 676 g kg-1 clay, we studied the effect of various treatments on clay dispersion. Aggrega...
Runoff, sediment yield and erodibility characteristics of some soils of central eastern nigeria under simulated rainfall
runoff rainfall simulation sediment yield soil management infiltration
2008/11/13
0.5 mm) were found to negatively relate with splash and sediment yield. The measured and calculated erodibility ratings did not agree with the ranking of the soils. However, such parameters as exchang...
Reduction in organic matter fractions and structural stability following cultivation of tropical forests in Ethiopia and Nigeria
organic matter aggregate stability tropical soils
2008/11/12
The objectives of this study were: to assess changes in the organic matter (OM) fractions of the surface layer (0-20 cm) of the forested Ethiopian and Nigerian soils following their conversion to arab...