Working Document Series Open Access Validation of satellite derived rainfall estimates over Kenya C. B. Lukorito · E. Muigai Njoroge · N. J. Muthama · G. O. Ouma Precipitation is one of the major components of the earth’s climate system. Many countries in the tropics depend on rainfall for the agricultural and hydrological activities which are dominant in their economies. Rainfall information is a … RUF-34783 2010 CC BY 4.0 11 Sep 2015
Working Document Series Open Access Enhancing the capacity of Kenya on climate risk reduction and climate change adaptation for sustainable agricultural productivity and food security C. B. Lukorito · G. O. Ouma Most vulnerable groups in countries in Sub Saharan Africa including Kenya are the poor who have least capacity for coping with the adverse impacts of the current climate extremes, and adapting to future climate changes. Lack of suitable co… RUF-34772 2010 CC BY 4.0 11 Sep 2015
Working Document Series Open Access Effects of cowpea leaf harvesting initiation time on yields and profitability of dual-purpose sole cowpea and cowpea-maize intercrop J.N. Aguyoh · F. M. Itulya · S. Mwanarusi · G. Owour Dual-purpose cowpea production is a common component of many tropical and sub tropical subsistence farming systems. However, limited information exists on effects of leaf harvesting initiation time on yields and profitability of dual-purpo… RUF-34752 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Effect of nitrogen and phosphorous rates and sources on grain and forage yield of maize in river Nile State A. Abd Elrahman · Ezeldeen Ahmed The study was conducted at two locations, namely, Hudeiba Research Station Farm (moderately fertile soil) and Matera (poor soil) in River Nile State for two seasons between 20082010. The objective of the study was to investigate the effect… RUF-34716 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Enhancing village chicken productivity through parasite management for effective newcastle disease vaccination in Kenya L.C. Bebora · C.O. Gor · N. Maingi · P.G. Mbuthia +1 more Newcastle disease (ND) is documented among the most important diseases of poultry in the world, causing devastating losses in both commercial and village chickens. It is capable of causing mortality rates of up to 100% of the flock and, as… RUF-34715 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Integrated soil fertility management in South Kivu province, Democratic Republic of Congo B.J. Bashagaluke · R.D Birindwa · L.N. Cizungu · M.J. Walangululu This paper describes a collaborative research involving South Kivu province in Democratic Republic of Congo, Rwanda and Burundi to disseminate resilient agro-ecosystem packages. Modifying crop arrangement by planting legumes within and bet… RUF-34705 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access The link between seasonal climatic variability and poverty: A case study of pastoral and agro-pastoral communities in Baringo District, Kenya D.M. Nyariki · V.O. Wasonga · A.M. Yazan Elhadi Poverty remains rampant in the dry districts of Kenya so that it has now become an important item on Kenya’s development agenda. The dry districts of Kenya receive low amounts of rainfall, which is also erratic. These regions are predomina… RUF-34545 2010 CC BY 4.0 27 Aug 2015
Working Document Series Open Access Participatory analysis of growing season: A key for understanding and copping drought risk in northern Ethiopia A. Araya Berhe Prolonged drought is one of the most serious climatic hazards affecting agricultural production and those most at risk are those countries currently vulnerable to climate variability. Barley is one of the economical and staple food crops g… RUF-34469 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Linkages between crop residues, termite prevalence, crop lodging and subsequent crop yield under conservation agriculture in Zimbabwe E. F. Mutsamba · I. Nyagumbo Farmers believe that addition of residues to fields in conservation agriculture (CA) attract termites hence increase lodging, although they are beliefs that termites prefer feeding on dry matter and leave the crop. This study carried out i… RUF-34415 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Factors influencing pesticide use among cocoa farmers in Ondo State, Nigeria Akeem Abiade. Tijani Cocoa production in Nigeria is constrained by insect pests and diseases. The brown cocoa mirid (Sahlbergella singularis), the swollen shoot virus transmitted by mealy bugs and the black pod disease (Phytophthora palmivora and P. megakarya)… RUF-34393 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Response of sorghum genotypes to indigenous and exotic stem borers in Kenya P. Gibson · S. Kyamanywa · M. Mgonja · P.W. Muturi +1 more Field trials are being conduced in Kenya to identify sources of resistance, especially multiple resistance to Buseola fusca and Chilo partellus, two devastating pests of maize in sub-Saharan Africa. Genotypes ICSB 464, ICSB 467, Macia, IES… RUF-34367 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Effects of chicken and cattle manure on wheat production and soil properties in the high terrace and Karu soils in River Nile State in the Sudan Hassan Khalid Ali · Ali Alkhazin Ali Yousif This study was conducted at Hudeiba Research farm on karu and high terrace soils for two consecutive seasons (2008/09 and 2009/10). Organic manures are traditionally used for supplying plant nutrients. Eight different fertilizer combinatio… RUF-34343 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Diversity and colonization of permanent and semi-permanent breeding habitats by Anopheles mosquitoes in a semi-arid ecosystem of Baringo district in Kenya S.O. Arum · E.D. Kokwaro · F. Mulwa Diversity, occurrence and utilization of mosquito breeding habitats is an essential component of vector ecology and important in designing and implementation of vector management programs. A one year larval survey was conducted to determin… RUF-34341 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Seasonal rainfall variability, drought characterisation and efficacy of interpolation techniques: Case of Kenya’s central highlands M. Oscar Kisaka · F.S. Mairura · M. Mucheru-Muna · D.N. Mugendi +2 more Drier parts Eastern Kenya, endure persistent crop failure and declining agricultural productivity which have been attributed, in part, to high temperatures, prolonged dry-spells and particularly erratic rainfall. Understanding spatial-temp… RUF-34241 2014 CC BY 4.0 17 Aug 2015
Working Document Series Open Access Trend in climate variation in Karamoja Sub-region, northern eastern Uganda D. Aleper · A. Egeru · L. MacOpiyo · M.G.J. Majaliwa +1 more This study focused at determining the spatial and temporal rainfall and temperature characteristics in Karamoja with a view of establishing the intensity of climate variability. The study utilized historical data (1947-1976) and NOAA reana… RUF-34237 2014 CC BY 4.0 17 Aug 2015
Working Document Series Open Access In-season nitrogen prediction for the quality protein maize using the pocket hand-held NDVI sensor on farmers’ field around Ilu-Gelan and Bako-Tibe, Ethiopia Tolera Abera · Tolessa Debele · Haekoo Kim · Ernest Semu +1 more The “pocket” hand-held Normalized Difference Vegetative Index (NDVI) sensor for inseason highland quality protein maize nitrogen rate determination for side-dressing was conducted in 2013cropping season on seven farmers’ field around Bako-… RUF-34117 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Biomass accumulation and nitrogen fixation of soybean varieties, grain yields of soybean and maize intercropped at different planting densities in western Kenya F. Baijukya · R. Onwonga · M. Simbine Biomass accumulation and nitrogen fixation of soybean (Glycine max) and grain yields of maize (Zea mays) and soybean intercropped at different planting densities was assessed in two villages of Butere and Mumias district of western Kenya d… RUF-34108 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Xanthomonas campestris pv. musacearum insect vector activity on banana across altitude and seasons in Rwanda G. Blomme · G. Night · W. Ocimati · A. Rutikanga +1 more Banana Xanthomonas Wilt (BXW) ( Xanthomonas campestris pv. musacearum -Xcm) disease is considered the most important threat to banana production in the Great Lakes Region of Africa. Insect vectors are one of the key ways through which the … RUF-34104 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Effects of ethephon and potassium nitrate on off-season flower induction in mango J. Ambuko · M. Hutchinson · S. Maloba · W.O. Owino Mango (Mangifera indica) fruit production in Kenya is seasonal with peak and off seasons – one of the contributing factors to postharvest losses. Off-season flower induction is a strategy that can be used to address mango seasonality. Mani… RUF-34031 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Row covers for management of insect-vectored viral diseases of tomato in Uganda H. Jurua · J. Karungi · M.K.N. Ochwo-Ssemakula · P. Sseruwagi Tomato production in Uganda is constrained by among others use of low quality planting materials, non-availability of inputs, sub-optimum agronomic practices, pests and diseases. Studies have shown that viral diseases have quickly become a… RUF-34016 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Evaluation of exotic cowpea genotypes for grain yields in autumn, winter and summer seasons Ahmed Osman Abunearan Medani Cowpea (Vigna unguiculata) as leguminous crop was being needed by the people to supplement their diet in form of protein. Our local cultivars did not provide the continuous yields throughout the year; therefore the current research is requ… RUF-33973 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access The effects of climate variability on Prosopis juliflora spread, vegetation trends and livestock dynamics in the drylands of Kenya J. Kinama · R. Kyuma · R.G. Wahome · V.O. Wasonga The effects of climate variability and Prosopis juliflora invasion on pastoral livestock production and pastoral livelihoods have not been assessed. A study was conducted to determine the effect of climate variability and Prosopis juliflor… RUF-33891 2014 CC BY 4.0 11 Aug 2015
Theses & Dissertations Open Access Impacts of climate change on durum wheat (Triticum turgidum L var durum) production: analysis of future adaptation measures in the Central Rift Valley of Ethiopia Olivier Abayisenga Assessing impact of climate change on durum wheat production and analysis of future adaptation measures bears enormous advantages in general and in Ethiopia in particular, owing to the country’s low adaptative capacity.The analysis shows t… RUF-33788 2015 CC BY 4.0 29 Jul 2015
Theses & Dissertations Open Access Characterization of climate variability and water harvesting system for crop production in Adulala Watershed, Central Rift Valley of Ethiopia Moffat Goma Scarcity of water is the most severe constraint for traditional agriculture in semi-arid areas of Ethiopia. Precipitation is extremely variable, thus water harvesting is crucial for ensuring improved crop production. A study was carried ou… RUF-33786 2015 CC BY 4.0 28 Jul 2015
Journal articles Open Access Using APSIM-model as a decision-support-tool for long-term integrated-nitrogen-management and maize productivity under semi-arid conditions in Kenya M. Oscar Kisaka · F.S. Mairura · M.W. Mucheru-Muna · D.N. Mugendi +3 more There is continued decline in per capita agricultural productivity in the drier parts of Kenya’s central highlands. The declines have been linked to low and declining soil fertility, soil water, high atmospheric heat, prolonged dry-spells … RUF-33784 2015 CC BY 4.0 28 Jul 2015
