A5063318291- Agronomic Practices and Intercropping Systems
- Weed Control and Herbicide Applications
- Legume Nitrogen Fixing Symbiosis
- Plant Parasitism and Resistance
- Agricultural Innovations and Practices
- Agricultural pest management studies
- Cassava research and cyanide
- Allelopathy and phytotoxic interactions
- Agriculture and Rural Development Research
- Agroforestry and silvopastoral systems
- Crop Yield and Soil Fertility
- Banana Cultivation and Research
- Bioenergy crop production and management
- Rice Cultivation and Yield Improvement
- Biological Control of Invasive Species
- Nematode management and characterization studies
- Ecology and Vegetation Dynamics Studies
- Soil Carbon and Nitrogen Dynamics
- Soil erosion and sediment transport
- Microfinance and Financial Inclusion
- African Botany and Ecology Studies
- Innovation and Socioeconomic Development
- Climate change impacts on agriculture
- Soybean genetics and cultivation
- Rangeland Management and Livestock Ecology
Golden Valley Agricultural Research Trust
2020-2023
International Institute of Tropical Agriculture
2004-2021
International Institute of Tropical Agriculture
2005-2021
Hokkaido University
2021
Instituto de Investigação Agrária de Moçambique
2009
University of Guelph
1995-1996
Cowpea (Vigna unguiculata) is a major source of dietary protein and essential component the cropping systems in semi-arid regions Sub-Saharan Africa. However, yields are very low due to lack improved cultivars, poor management practices, limited inputs use. The objectives this study were assess effects rhizobia inoculant P on nodulation, N accumulation yield two cowpea cultivars Mozambique. Field was conducted three contrasting environments during 2013/2014 2014/2015 seasons using randomized...
Adoption of improved agricultural technologies has long been recognized as critical for reducing poverty through increased productivity, incomes, and asset accumulation. Using a nationally representative survey data from sample over 1500 households in Nigeria, this paper evaluates the impacts adoption cowpea varieties on income reduction using an endogenous switching regression model. The results showed that per capita household ownership by 17 24 percentage points, respectively. based...
In southern Africa, conservation agriculture (CA) has been promoted to address low agricultural productivity, food insecurity, and land degradation. However, despite significant experimental evidence on the agronomic economic benefits of CA large scale investments by donor community national governments, adoption rates among smallholders remain below expectation. The main objective this research project was thus investigate why previous efforts technologies practices in Africa have not led...
Common ragweed is a major problem in white bean production systems Ontario. The influence of time emergence and density common on growth seed yield was examined Ontario at Elora 1990, Woodstock Staffa 1991 1992. Ragweed emerged with seedlings (VE) the second trifoliate stage (V3). Time weed affected all locations. When 1.5 m −1 row VE crop 10 to 22% loss occurred. Yield losses 4 9% occurred when V3 stage. parameter estimates, i.e., predicted weed-free (YWF) maximum (A), varied among...
It is widely recognized that female farmers have considerably less access to productive assets and support services than male farmers. There limited evidence of gender gaps in technology adoption agricultural productivity after accounting for the differential factors production between males females. This study investigates differences improved technologies Malawi using nationally representative data collected from 1600 households 5238 plots. We used a multivariate probit model analyze...
Abstract Production and utilization of crop residues as mulch effective weed management are two central elements in the successful implementation Conservation Agriculture (CA) systems southern Africa. Yet, challenges residue availability for or difficulties managing proliferation CA bigger than a micro-level focus on weeds themselves. The bottlenecks symptoms broader systemic complications that cannot be resolved without appreciating interactions between current scientific understanding its...
Corn ( Zea mays L.) production is gradually spreading into the Sudan savanna zone of West Africa where limited by erratic and inadequate rainfall. To increase corn production, practices should be properly designed to minimize effects low precipitation high temperatures that characterize zone. A study, determine performance late (120 d), early (90 extra‐early maturing (80 d) cultivars over a range planting dates, was performed in savannas northeast Nigeria. Delaying generally increased days...
In most sub-Saharan African countries, staple cereal grains harbor many fungi and some produce mycotoxins that negatively impact health trade. Maize three small grain cereals (sorghum, pearl millet, finger millet) produced by smallholder farmers in Zimbabwe during 2016 2017 were examined for fungal community structure, total aflatoxin (AF) fumonisin (FM) content. A of 800 maize 180 samples collected at harvest storage from four agroecological zones. Fusarium spp. dominated the associated...
The parasitic angiosperms, Striga hermonthica and S. gesnerioides , obligate root parasites endemic in sub-Saharan Africa, constitute severe constraints to cereal legume production West Central Africa. Over the years, a range of effective component technologies has been identified for control potential these demonstrated under researcher-managed conditions. To promote farmer testing technologies, community workshops were conducted 42 rural communities Kaduna State, northern Nigeria. These...
Cogongrass is a difficult weed to control in small-scale farming systems and often causes significant crop yield reduction. Field experiments were conducted from 1996 1999 at three sites located the forest/savanna transition zone of Nigeria determine influence intercropping cover crops on cogongrass, corn, cassava growth. Total cogongrass biomass (shoots rhizomes) onset study was highest Ijaiye (889 g m−2), followed by Umumba (445 least Ezillo (138 m−2). Velvetbean had percent ground (67...
Abstract The main objective of this study was to determine the attitude farmers towards erosion and adoption appropriate soil conservation technologies (SCTs). For survey, were selected from communities Esa Oke, Elwure Owode-Ede Akoda in Osun State Nigeria. In first three did receive training on conservation, fourth not. About 60 interviewed obtain information personal socio-economic characteristics, awareness environmental problems, control experiences with SCTs. Statistical data analyses...
Abstract One of the main barriers to adopting smallholder agricultural mechanization in developing countries is mismatch between economies scale machines and farm size. Private sector‐led services hold a promise address this challenge, but there lack evidence on demand for services. This study estimates farmers' willingness pay using double‐bounded contingent valuation method data from 1512 households. Results show that, average, farmers are willing 11%, 33%, 5% more than prevailing market...
Southern Africa has been experiencing long-term changes in its climate and future projections imply that droughts should last longer become more intense southern Africa. Already, the region an increase consecutive drought years. This study contributes to literature by using bio-economic modeling simulate impact of on food security identify plausible pathways for enhancing regional under drought. Food production were projected adjusted version a multi-market multi-commodity global model,...
Field experiments were conducted in 1992 to 1993 and 1995 1996 Ibadan, Nigeria, assess the effect of velvetbean herbicides on maize (corn) cogongrass growth regrowth weed 1 yr after treatment. In cover cropping with imazapyr glyphosate application reduced density as much handweeded control. The smothering was equivalent that at 1.8 kg/ha but less than even lowest rate 0.5 kg/ha. Addition adjuvant did not improve efficacy either herbicide. Maize grain yield higher plots fallow dominated by...
Speargrass, Imperata cylindrica (L.) Raeuschel, is a serious weed, threatening crop productivity in smallholder farms West Africa. Since the use of more effective practices such as deep tillage and chemical control beyond means resource-poor farmers who carry out most agricultural activities this region, low-input alternative technology needs to be developed. Field studies were conducted during 1993/1994 1995/1996 growing seasons investigate influence three velvetbean accessions two levels...