Publications in VIVO

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Kamara, Alpha Savannah Systems Agronomist, IITA

IITA
IWMI

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selected publications

article
- Maize hybrids response to high plant density in the Guinea savannah of Nigeria. Journal of Crop Improvement. 35:1-20. 2021
- Productivity, Water- and Nitrogen-Use Efficiency, and Profitability of Pearl Millet (Pennisetum glaucum) under Different Nitrogen Applications in Semiarid Region of Nigeria. International Journal of Agronomy. 2020:1-12. 2020
- CERES-Maize model for simulating genotype-by-environment interaction of maize and its stability in the dry and wet savannas of Nigeria.. Field Crops Research. 253:107826. 2020
- Mitigating Striga hermonthica parasitism and damage in maize using soybean rotation, nitrogen application, and Striga-resistant varieties in the Nigerian savannas. Experimental Agriculture. 56:620-632. 2020
- Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa. Agricultural Systems. 180:102790. 2020
- Understanding the response of sorghum cultivars to nitrogen applications in the semi-arid Nigeria using the agricultural production systems simulator. International plant nutrition colloquium. 10. 43:834-850. 2020
- Adoption and Ex-post Impacts of Improved Cowpea Varieties on Productivity and Net Returns in Nigeria. Journal of Agricultural Economics. 71:165-183. 2020
- Can a Combination of UAV-Derived Vegetation Indices with Biophysical Variables Improve Yield Variability Assessment in Smallholder Farms?. AGRONOMY-BASEL. 10. 2020
- Modeling Planting-Date Effects on Intermediate-Maturing Maize in Contrasting Environments in the Nigerian Savanna: An Application of DSSAT Model. AGRONOMY-BASEL. 10. 2020
- Using a Participatory Approach and Legume Integration to Increase the Productivity of Early Maturing Maize in the Nigerian Sudan Savannas. International Journal of Agronomy. 2019:1-8. 2019
- Ex‐ante evaluation of promising soybean innovations for sub‐Saharan Africa. Food and Energy Security. 8. 2019
- Balanced nutrient requirements for maize in the Northern Nigerian Savanna: Parameterization and validation of QUEFTS model. Field Crops Research. 241:107585. 2019
- Market‐led options to scale up legume seeds in developing countries: Experiences from the Tropical Legumes Project. Plant Breeding. 138:474-486. 2019
- Inheritance of resistance to Cercospora leaf spot disease of cowpea [Vigna unguiculata (L.) Walp]. Euphytica. 215:101. 2019
- Physiological Evaluations of Maize Hybrids under Low Nitrogen 2019
- Options for calibrating CERES-maize genotype specific parameters under data-scarce environments.. PLOS ONE. 14. 2019
- Yield, N Uptake and N Utilization of Early Maturing, Drought and Striga-Tolerant Maize Varieties under Low N Conditions. Communications in Soil Science and Plant Analysis. 50:373-387. 2019
- Sustaining the beneficial effects of maize production in Nigeria: Does adoption of short season maize varieties matter?. Experimental Agriculture. 55:885-897. 2019
- MAIZE-SOYBEAN INTERCROPPING for SUSTAINABLE INTENSIFICATION of CEREAL-LEGUME CROPPING SYSTEMS in NORTHERN NIGERIA. Experimental Agriculture. 55:73-87. 2019
- Genetic analysis of Fusarium wilt resistance in cowpea (Vigna unguiculata Walp.). Plant Breeding. 137:773-781. 2018
- Effectiveness of imazaquin seed treatment on Striga gesnerioides control and growth traits of seven cowpea genotypes. Journal of Plant Pathology. 100:477-484. 2018
- Options for calibrating CERES-maize genotype specific parameters under data-scarce environments. bioRxiv. 353045. 2018
- Evaluating maize yield variability and gaps in two agroecologies in northern Ghana using a crop simulation model. The South African Journal of Plant and Soil. 35:137-147. 2018
- Effects of plant density on the performance of cowpea in Nigerian savannas.. Experimental Agriculture. 54:120-132. 2018
- Looking back and moving forward: 50 years of soil and soil fertility management research in sub-Saharan Africa. International Journal of Agricultural Sustainability. 15:613-631. 2017
- Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis. Euphytica. 213:244. 2017
- New sources of aphids [Aphis craccivora (Koch)] resistance in cowpea germplasm using phenotypic and molecular marker approaches. Euphytica. 213:178. 2017
- Agronomic evaluation of cowpea cultivars developed for the West African Savannas. Legume Research. 40:669-676. 2017
- Breeding cowpea for resistance to Striga gesnerioides in the Nigerian dry savannas using marker-assisted selection. Plant Breeding. 136:393-399. 2017
- Identification of new sources of resistance to Striga gesnerioides in cowpea Vigna unguiculata accessions. Genetic Resources and Crop Evolution. 64:901-911. 2017
- Using CERES-Maize and ENSO as Decision Support Tools to Evaluate Climate-Sensitive Farm Management Practices for Maize Production in the Northern Regions of Ghana.. Frontiers in Plant Science. 8:31. 2017
- Profitability and technical efficiency of soybean production in northern Nigeria 2017
- Consistency of performance of early-maturing maize cultivars in Striga-infested and Striga-free environments. Canadian Journal of Plant Science. 95:1073-1084. 2015
- Cowpea response to planting date under different maize maturity types in West African Sudan savannah. Journal of Tropical Agriculture. 52:139-144. 2014
- Assessment of the relationship between soil properties, Striga hermonthica infestation and the on-farm yields of maize in the dry Savannas of Nigeria. Crop Protection. 66:90-97. 2014
- Agronomic Response of Soybean Varieties to Plant Population in the Guinea Savannas of Nigeria. Agronomy Journal. 106:1051-1059. 2014
- Assessment of level, extent and factors influencing Striga infestation of cereals and cowpea in a Sudan Savanna ecology of northern Nigeria. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 188:111-121. 2014
- Performance of cowpea cultivars when grown as an intercrop with maize of contrasting maturities. Archives of Agronomy and Soil Science. 60:597-608. 2014
- Assessment of nitrogen uptake and utilization in drought tolerant and Striga resistant tropical maize varieties. Archives of Agronomy and Soil Science. 60:195-207. 2014
- Determinants of adoption of agricultural innovations and profitability of cereals and legumes in the Sudan savanna of Nigeria 2014
- Evaluation of multi-stress tolerant maize varieties for sustainable intensification in Northern Guinea Savanna of north eastern Nigeria. Maydica. 59:137-143. 2014
- Mid-term and cost-benefit study of smallholder farmers in Striga-Infested maize and cowpea growing areas of Northern Nigeria 2014
- Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria. Archives of Phytopathology and Plant Protection. 46:52-63. 2013
- Agronomic response of drought-tolerant and Striga-resistant maize cultivars to nitrogen fertilization in the Nigerian Guinea savannahs.. Maydica. 57:114-120. 2012
- Are investments in an informal seed system for cowpea a worthwhile endeavour. International Journal of Plant Production. 6:367-386. 2012
- Agronomic response of drought-tolerant and Striga-resistant maize cultivars to nitrogen fertilization in the Nigerian Guinea savannahs. Maydica. 57:114-120. 2012
- Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties 2012
- PHOSPHORUS AND NITROGEN FERTILIZATION OF SOYBEAN IN THE NIGERIAN SAVANNA. Experimental Agriculture. 48:39-48. 2012
- Phosphorus effects on growth and yield of groundnut varieties in the tropical savannas of northeast Nigeria.. Journal of Tropical Agriculture. 49:25-30. 2011
- Genetic Gain in Yield and Agronomic Characteristics of Cowpea Cultivars Developed in the Sudan Savannas of Nigeria over the Past Three Decades. Crop Science. 51:1877-1886. 2011
- Response of exotic sorghum (Sorghum bicolor [L.] Moench) cultivars to planting date under natural infestation of Striga hermonthica (Del) Benth. in the Sudan savanna zone of northeast Nigeria. Archives of Agronomy and Soil Science. 57:679-692. 2011
- Development aid and access to water and sanitation in Sub-Saharan Africa 2011
- Influence of nitrogen fertilization on yield and yield components of rain-fed lowland NERIC rice in the northern Guinea savanna of Nigeria 2011
- Influence of nitrogen fertilization on yield and yield components of rain-fed lowland NERICA (R) rice in the northern Guinea savanna of Nigeria. African Journal of Agricultural Research. 6:3092-3097. 2011
- Soil Fertility Variability in Relation to the Yields of Maize and Soybean Under Intensifying Cropping Systems in the Tropical Savannas of Northeastern Nigeria 2011
- Integrating planting date with insecticide spraying regimes to manage insect pests of cowpea in north-eastern Nigeria.. International Journal of Pest Management. 56:243-253. 2010
- A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria. Archives of Agronomy and Soil Science. 56:355-370. 2010
- Breeding progress for grain yield and associated traits in medium and late maturing promiscuous soybeans in Nigeria. Euphytica. 175:251-260. 2010
- Analysing the prospect of the "IAR4D's innovation platforms" in improving the productive efficiencies of cereal-legume farmers in the Sudan Savanna of Nigeria. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT. 8:813-820. 2010
- Analysing the prospect of the IAR4D's innovation platforms in improving the productive efficienceis of cereal-legume farmers in the Sudan Savanna of Nigeria 2010
- Analysis of technical efficiency among community-based seed producers in the savannas of Borno State, Nigeria 2010
- Field evaluation of sorghum varieties to Striga hermonthica infestation in north eastern Nigerian savannas 2010
- Impact of promoting sustainable agriculture in Borno (PROSAB) program on adoption of improved crop varieties in Borno State of Nigeria. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT. 8:391-398. 2010
- Response of Upland Rice Cultivars to Nitrogen Fertilizer in the Savannas of Nigeria. Agronomy Journal. 102:333-339. 2010
- Using a linear discriminant analysis approach of baseline conditions to develop household categories in the Sudan Savanna ( KKM PLS SSA CP ), Nigeria 2010
- Using a linear discriminant analysis approach of baseline conditions to develop household categories in the Sudan savanna (KKM PLS SSA CP), Nigeria. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT. 8:805-812. 2010
- The Impact of Treadle Pump Irrigation Technology Adoption on Poverty in Ghana. The Journal of Agricultural Education and Extension. 15:357-369. 2009
- Response of early maturing maize landraces and improved varieties to moisture deficit and sufficient water supply. Plant Genetic Resources. 7:205-215. 2009
- Improvement in Grain and Fodder Yields of Early‐Maturing Promiscuous Soybean Varieties in the Guinea Savanna of Nigeria. Crop Science. 49:2037-2042. 2009
- Influence of nitrogen fertilization on the performance of early and late maturing maize varieties under natural infestation with Striga hermonthica (Del.) Benth. Archives of Agronomy and Soil Science. 55:125-145. 2009
- Planting date and cultivar effects on grain yield in dryland corn production. Agronomy Journal. 101:91-98. 2009
- Production du niebe en Afrique de l'Ouest: guide du paysan 2009
- Response of upland rice cultivars to weed competition in the savannas of West Africa. Crop Protection. 28:90-96. 2009
- A PARTICIPATORY APPROACH TO INCREASING PRODUCTIVITY OF MAIZE THROUGH STRIGA HERMONTHICA CONTROL IN NORTHEAST NIGERIA. Experimental Agriculture. 44:349-364. 2008
- Field performance of improved cowpea varieties under conditions of natural infestation by the parasitic weed Striga gesnerioides. International Journal of Pest Management. 54:189-195. 2008
- Analyses of soil physico chemical properties determining Striga hermonthica infestations and grain yield of maize (Zea mays L.) in nigerian Guinea and Sudan savannas 2008
- EVALUATION OF ARTIFICIAL FIELD INFESTATION TECHNIQUES WITH STRIGA HERMONTHICA FOR RESISTANCE SCREENING IN MAIZE (ZEA MAYS L.). Maydica. 53:97-100. 2008
- Guide to Rice Production in Borno State, Nigeria 2008
- Guide to safe and effective use of pesticides for crop production in Borno State, Nigeria 2008
- Response of corn genotypes to weed interference and nitrogen in Nigeria 2008
- Response of low-N pool maize population to nitrogen uptake and use efficiency after three cycles of full-sib recurrent selection. The Journal of Agricultural Science. 145:481-490. 2007
- Influence of phosphorus application on growth and yield of soybean genotypes in the tropical savannas of northeast Nigeria. Archives of Agronomy and Soil Science. 53:539-552. 2007
- Assessment of striga infestation in crop fields in the savanna zones of northeast Nigeria 2007
- Cultivar and nitrogen fertilization effects on Striga infestation and grain yield of early maturing tropical maize. Maydica. 52:415-423. 2007
- Evaluation of cowpea genotypes for their reactions to Striga gesnerioides in the dry savanna of northeast Nigeria 2007
- Influence of insecticide spraying regimes and cultivar on insect pests and yield of cowpea in the dry savannas of north-eastern Nigeria. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT. 5:154-158. 2007
- Infestation of crop fields by Striga species in the savanna zones of northeast Nigeria.. Agriculture, Ecosystems & Environment. 116:251-254. 2006
- Genetic gains from cycles of full-sib recurrent selection for low nitrogen tolerance in a tropical maize population 2006
- Guide to soybean production in Borno State, Nigeria 2006
- Performance of old and new maize hybrids at high plant densities in the tropical Guinea Savanna 2006
- Progress in breeding tropical maize for adaptation to sub-optimal soil nitrogen at IITA 2006
- Effect of Drought and Weed Management on Maize Genotypes and the Tensiometric Soil Water Content of an Eutric Nitisol in South Western Nigeria. Plant and Soil. 276:61-68. 2005
- Screening maize for drought tolerance in the Guinea savanna of West and Central Africa. Cereal Research Communications. 33:533-540. 2005
- PERFORMANCE OF DIVERSE MAIZE GENOTYPES UNDER NITROGEN DEFICIENCY IN THE NORTHERN GUINEA SAVANNA OF NIGERIA. Experimental Agriculture. 41:199-212. 2005
- Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria 2005
- Property rights and land use change: Implications for sustainable resource management in Borana, southern Ethiopia. Journal of Sustainable Agriculture. 25:45-61. 2005
- Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa. JOURNAL OF AGRICULTURAL SCIENCE. 142:567-575. 2004
- Effects of drought screening methodology on genetic variances and covariances in Pool 16 DT maize population. JOURNAL OF AGRICULTURAL SCIENCE. 142:445-452. 2004
- Combating Striga hermonthica in the West African savannas using host-plant resistance and legume trap crops 2004
- Agronomic performance of maize (Zea mays L.) breeding lines derived from a low nitrogen maize population. JOURNAL OF AGRICULTURAL SCIENCE. 141:221-230. 2003
- The influence of drought stress on growth, yield and yield components of selected maize genotypes. The Journal of Agricultural Science. 141:43-50. 2003
- Association of vertical root-pulling resistance with root lodging and grain yield in selected S1 maize lines derived from a tropical low-Nitrogen population 2003
- Co-operation in risky environments: Evidence from Southern Ethiopia. Journal of African Economies. 12:236-270. 2003
- Water for food, livelihoods and nature: simulations for policy dialogue in South Africa. Physics and Chemistry of The Earth. 28:1085-1094. 2003
- Breeding of drought and water stress tolerant crops 2001
- Contrasting responses of 12 maize cultivars to terminal drought 2001
- Selective control of weeds in an arable crop by mulches from some multipurpose trees in Southwestern Nigeria. Agroforestry Systems. 50:17-26. 2000
- Gender and variety selection: Farmers assessment of local corn varieties in southern Mali 1997
- The effect of mulch from three multipurpose trees on weed composition and biomass in maize 1997
- Cropping systems in uplands 1976
dataset
- TAMASA Nigeria. UAV and ground measurements in Nutrient Omission Trials (NOT), 2016 2017
- TAMASA Nigeria. UAV and ground measurements in farmers' fields around Nutrient Omission Trials, 2016 2017
document
review
- Public sector soybean (Glycine max) breeding: Advances in cultivar development in the African tropics. Plant Breeding. 455-464. 2019