A5091329585- Irrigation Practices and Water Management
- Soil and Unsaturated Flow
- Agricultural pest management studies
- Legume Nitrogen Fixing Symbiosis
- Agronomic Practices and Intercropping Systems
- Research in Cotton Cultivation
- Phytase and its Applications
- Soybean genetics and cultivation
- Plant Water Relations and Carbon Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Soil Carbon and Nitrogen Dynamics
- Cocoa and Sweet Potato Agronomy
- Agroforestry and silvopastoral systems
- Odor and Emission Control Technologies
- Landfill Environmental Impact Studies
- Edible Oils Quality and Analysis
- Soil erosion and sediment transport
- Hydrology and Watershed Management Studies
- Rice Cultivation and Yield Improvement
- Potato Plant Research
- Groundwater flow and contamination studies
- Magnetic and Electromagnetic Effects
- Indigenous Knowledge Systems and Agriculture
- Composting and Vermicomposting Techniques
- Land Rights and Reforms
International Institute of Tropical Agriculture
2016-2021
International Institute of Tropical Agriculture
2016
Auburn University
2011-2012
King Abdulaziz City for Science and Technology
2004
Saudi Arabia Basic Industries (Saudi Arabia)
2003
Cornell University
1997
This study evaluated the symbiotic effectiveness and economic evaluation of Rhizobium inoculants with objective recommending most effective inoculant strain for soybean cowpea production in Northern Ghana. Field experiments were established three locations using randomized complete block design five blocks. A total four treatments (Legumefix, Biofix, 100 kg N ha-1 uninoculated control BR 3267, 3262, cowpea) applied. At Nyankpala, inoculation Legumefix Biofix led to significant (P < 0.05)...
Low and declining soil fertility has been recognized for a long time as major impediment to intensifying agriculture in sub-Saharan Africa (SSA). Consequently, from the inception of international agricultural research, centres operating SSA have had research programme focusing on management, including International Institute Tropical Agriculture (IITA). The scope, content, approaches management changed over past decades response lessons learnt internal external drivers this paper uses IITA...
Sweet potato (Ipomoea batatas (L) Lam) yields currently stand at 4.5 t ha-1 on smallholder farms in Uganda, despite the attainable yield (45-48 ha-1) of NASPOT 11 cultivar comparable to potential (45 sub-Saharan Africa (SSA). On-farm field experiments were conducted for two seasons Mt Elgon High Farmlands and Lake Victoria Crescent agro-ecological zones Uganda determine biofertilizers, specifically arbuscular mycorrhizal fungi (AMF), increase sweet (NASPOT cultivar). Two kinds biofertilizers...
Use of inorganic fertilizer is an essential practice to optimize crop productivity in the poor fertility soils sub-Saharan Africa, but it has been linked high cost production, contamination surface and/or ground water by nitrate leaching and eutrophication phosphate run-off.Besides, secondary effects on soil biotic community impoverishment have weakened cropping systems making them increasingly dependent external chemical fertilizers.Efficient plant nutrition management should ensure both...
African yam bean ( Sphenostylis stenocarpa (Hochst ex. A. Rich.) Harms) is an annual legume with the capacity to produce seeds in a pod and tubers varying seed patterns colors. It suggested have potential significantly boost food security sub-Saharan Africa due its considerable nutritional qualities but still yet underutilized. Many farmers show limited interest production owing knowledge of profile, income generation for small-holder farmers’, processing, other related utilization concerns....
A plate meter for measuring pasture mass was calibrated at Agroforestry Research Site in Blacksburg, Virginia, USA, using six ungrazed plots of established tall fescue overseeded with orchardgrass. Each plot interplanted bare root honey locust and black walnut seedlings spaced along a gradient ranging from 1.8 to 11.0 m. Plate height (PH) forage between trees measured by placing 46 mm × 5.6-mm-thick acrylic plastic on canopy locations four times season. PH ground as it rested canopy. To...
Fluctuations in dryland cotton yield the Tennessee Valley region of northern Alabama are common and usually related to irregular drought periods during growing season. Subsurface drip irrigation (SDI) has gained popularity as a water delivery system for small, irregular-shaped fields. A seven-year study was conducted with objective determine response seed SDI tape orientation relative crop row direction different rates under conditions Valley. Seven treatments were tested randomized...
Fluctuations in cotton (Gossypium hirsutum, L.) yield the Tennessee Valley of Alabama are common and usually related to drought or irregular rainfall. A sprinkler irrigation study was established from 1999 2004 evaluate minimum design flow rate produce optimum yields economic gain. replicated randomized block consisting four treatments ranging one inch every 12.5 days (equivalent 1.5 gpm acre-1 system capability) 3.1 (6.0 acre-1) a control, rainfed treatment. Daily plant water requirement...
Abstract. Adegboyega TT, Abberton MT, Abdelgadir AH, Mahamadi D, Olaniyi OA, Ofodile S, Babalola OO. 2021. Variation in winged bean (Psophocarpus tetragonolobus) growth parameters, seed yield, nodulation, and nitrogen fixation. Asian J Agric 5: 61-71. Underutilized legumes are widely distributed tropical agriculture associated with low yield. Thus they have not really been fully explored due to lack of research investment, breeding programs targeting crop improvement, marketing, awareness...
The operation of onsite septic effluent disposal without considering seasonal moisture changes in drain field conditions can be a major cause the failure conventional systems. This study addressed this issue from soil hydraulic perspective by using real-time levels to limit vertisol via subsurface drip irrigation. A prototype system was field-tested Houston clay and results describe subsequent impact on selected chemical properties. After one year dosing with synthetic wastewater, total...
Liquid dairy manure and dry broiler litter samples were laboratory tested to determine the effects of four preservation techniques on form concentration nitrogen. 300-mL fresh from Virginia poultry farms analyzed for total Kjeldahl, ammonium, nitrate/nitrite nitrogen within 24 h farm sampling at end seven days. The considered storage samples; (i) ambient temperature (26C), (ii) by refrigeration (4C), (iii) freezing (-22C), (iv) acidification with concentrated sulfuric acid (H2SO4) pH < 2...
Four years of field research are presented for a subsurface drip irrigation study installed at the Tennessee Valley Research and Extension Center in northern Alabama 2006. Study objectives to evaluate effect four precision fertigation management scenarios non-fertigated control on cotton yield, nutrient uptake, lint quality. Approximately 7,500 feet SDI tape positive displacement liquid fertilizer injectors were used replications five timing treatments randomized complete block design. Each...