Working Document Series Open Access Influence of soil fertility management on Striga seed bank dynamics and grain yield of sorghum in semi arid areas G. Chemining’wa · A. Kudra · R.N. Onwonga · K.P. Sibuga The parasitic weed Striga poses a serious threat to cereal production in sub-Saharan Africa. Infestation usually results in significant yield losses, quite often over 70%. Many control options have been reported but, the effect of soil fer… RUF-35067 2010 CC BY 4.0 16 Sep 2015
Working Document Series Open Access Influence of water quality parameters on Opsaridium microlepis catches in the Linthipe River in central Malawi D. Jamu · E. Kaunda · M. Limuwa · F. Maguza-Tembo +1 more The dwindling catches of the fish Opsaridium microlepis (locally called mpasa) from the Linthipe river in Malawi is of great concern. This is especially so given that the species has disappeared from some other river systems in Malawi. One… RUF-35045 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access Reproductive biology and cryopreservation of milt of Alestes baremoze (Joannis, 1835) of Lake Albert, Uganda M. Agaba · J.S. Balirwa · G.M. Kamugisa · D. Kassam +1 more This study is designed to generate knowledge relevant to the domestication, breeding, production and propagation of Alestes baremoze fish species in captivity through artificial spawning and in vitro fertilization. The study aims at broade… RUF-35007 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access Population dynamics and impact of trawling on the population structure of four key-indicator fish species in the South East arm of Lake Malawi A.M.E. Bulirani · E. Kaunda A study to assess impact of trawling on fish species population and dynamics has been initiated in Lake Malawi. Population dynamics of four indicator species will be monitored and used as a proxy indicator of the status of fishery in Lake … RUF-34989 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access Genetic and phenotypic evaluation of Zimbabwean Jersey cattle towards the development of a selection index T.E. Halimani · E.V Imbayawro-Chikosi · E.M. Missanjo A multitrait selection index for Zimbabwean Jersey cattle was constructed using 10 986 records (305-day) from 25 herds with calving period from 1996 to 2008 using data from the Livestock Identification Trust. Genetic and phenotypic paramet… RUF-34915 2010 CC BY 4.0 14 Sep 2015
Working Document Series Open Access Breed preference, selection criteria and production performance of dairy cattle in the selected smallholder dairy farms in Zimbabwe B.T. Hanyani-Mlambo · E.V Imbayawro-Chikosi · L. Marius · C. Mutisi This study identified breed preferences, production performance and selection criteria used in selecting dairy breeds in Zimbabwe. A questionnaire based survey was conducted on 109 smallholder dairy farmers in Zimbabwe and data were analyz… RUF-34869 CC BY 4.0 14 Sep 2015
Working Document Series Open Access Producer and consumer preferences for maize and sorghum quality characteristics in Uganda R. Ajambo · B. Bashaasha · G. Elepu · P. Okori Maize and sorghum are important staple food crops in Uganda and are emerging cash crops. Despite release of several improved varieties of maize and sorghum, adoption rates among farmers remain low. This is due to breeding programmes ignori… RUF-34809 2010 CC BY 4.0 11 Sep 2015
Working Document Series Open Access Evaluation of Chilli pepper genotypes for yield and reaction to field diseases V. Nsabiyera · M. Ochwo-Ssemakula · P. Sseruwagi The performance of 25 chilli (16 exotic and 9 local) genotypes for yield and associated traits and reaction to field diseases was assessed at the National Crops Resources Research Institute (NaCRRI)- Namulonge from June-November, 2009. Tot… RUF-34753 2010 CC BY 4.0 10 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 Explanatory variables associated with the yield perfomance gap among small, medium and large scale sugar cane growers at Ubombo Sugar B. M. Dlamini · M. Mbuyazwe Dlamini In Swaziland, sugar cane is grown on small, medium and large scale. The yield of sugarcane between these grower types is large, with small scale producers having the least yield. The study was therefore carried out to determine factors res… RUF-34747 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Effect of pruning on yield and quality of selected indeterminate tomato lines C. Mbonihankuye In this study, we investigated the effect of prunning intensity on tomato fruit yield of five introductions and one variety. Tomato line significantly affected all tomato yield components in addition to marketable and non-marketable yield.… RUF-34744 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Effect of different types of organic fertilizers on growth, quality and yield of tomatoes in sandy soil M. I. Khalid Hamden This study was conducted in Bara locality during the period 2009-2010 to assess the impact of using different types of organic fertilizers on tomato yield growing in a sandy soil. Five treatments were compared, i.e., compost, fresh chicken… RUF-34738 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Effect of fecal manure from cattle fed Calliandra, Gliricidia and Luecaena browse/maize silages on soil productivity F. B. Bareeba · H. Kato · E. N. Sabiiti Browses have tannins and lignin which bind protein N and fiber and could subsequently affect release of manure nutrients in the soil when fed to animals. In this experiment, which was a pot experiment, cattle fecal manure from browse/maize… RUF-34733 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 Adapting soybean varieties to soil fertility variability for increased productivity in smallholder systems of Uganda P. Ebanyat · G. Elepu · P. Tukamuhabwa Biophysical conditions; climate and soil types underpin the suitability for growing of different crops at larger scales such as the agroecological regions while at the lower scales, crop production is governed by soil fertility status and … RUF-34712 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Test of AquaCrop model in simulating biomass and yield of water deficient and irrigated barley Kebede Afewerk · Alemie Araya With the current water shortage in Eastern Africa, improving crop water use is vital especially in the arid and semi-arid regions of Ethiopia. To understand the response of barley (Hordeum vulgare) to water and to simulate the biomass and … RUF-34709 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 Characterisation of micronutrient (zinc and iron), dense tropical maize hybrids grown in two different environments in Zambia L. Sinyinda Iron and zinc deficiencies that are prevalent in most sub-Saharan African countries have been attributed to the low grain micronutrient levels in local varieties. The study characterised micronutrient (iron and zinc) dense maize germplasm … RUF-34697 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Evaluation of water productivity for maize under drip irrigation J.J. Kashaigili · H. Mahoo · F.R. Silungwe, F.R. A drip system operating under deficit irrigation was used to evaluate water productivity (WP) of TMV-1 maize variety in Morogoro, Tanzania. A block was divided into four sub-blocks; and each randomly assigned with deficit treatment (T1, T2… RUF-34693 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Effects of optimised innovative soil fertility and water management technologies on maize production in two contrasting soils in Harare, Zimbabwe S. Madyiwa · J. Nyamangara · B. Nyamasoka · P. Nyamugafata +1 more Poor soil fertility and fertiliser management coupled with increased frequency of mid-season droughts induced by climate change have made it difficult for urban farmers to get sustainable crop yields especially on sandy soils. Urban farmer… RUF-34692 2010 CC BY 4.0 10 Sep 2015
Working Document Series Open Access Evaluation of physiological and morphological traits conferring drought tolerance in cowpea D. Lungu · K. Simango A field study was carried at Gwebi VTC to determine relationships among the morpho-physiological traits associated with drought tolerance in cowpea. Fifteen genotypes were planted in RCBD with three replications under two moisture environm… RUF-34685 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access Strengthening researcher-extension-farmer participation in soil fertility restoration for sustainable crop production in western Kenya E. Adipala · B. Amar · L. Didier · S.O. Gudu +14 more Food insecurity in sub-Saharan Africa (SSA) results mainly from common and prolonged droughts, fertility depleted soils, poor economies and insignificant researcher-extension-farmer contacts to demonstrate technologies. The soils are predo… RUF-34673 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access Improving biological nitrogen fixation (BNF) by groundnuts grown in acid soils through amendment with calcitic and dolomitic limestones R. Merckx · J.K. Ogega · J.R. Okalebo · D.K. Okello +5 more Groundnut (Arachis hypogeal L.) is an oil crop legume capable of symbiotic nitrogen fixation. Soil acidity is a major limitation to symbiotic nitrogen fixation. Acid soils are widespread in Western Kenya and Eastern Uganda where groundnut … RUF-34659 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access Effects of innovative farmer practices in soil fertility and water management on soil productivity and maizeand leafy vegetable production in Harare, Zimbabwe S. Madyiwa · J. Nyamangara · B. Nyamasoka · P. Nyamugafata Poor soil fertility and increased frequency of mid-season droughts due to climate change have made it difficult for urban farmers to get sustainable crop yields especially on sandy soils. Higher yields can be attained by urban farmers if p… RUF-34657 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access The effect of super phosphate and planting density on mini-tuber production from true potato seed T. A. Mtaita · M. Mutetwa · M. D. Shoko Improving tuber seed quality and availability is institutionally complex in the tropics and sub-tropics. The main objective of this work was to evaluate the effect of superphosphate and plant density on mini-tuber production from true pota… RUF-34649 2010 CC BY 4.0 9 Sep 2015
