Working Document Series Open Access Effects of agronomic management practices on soil microbial communities in a maize cropping system J. M. Maingi · M. Mucheru-Muna · E. M. Njeru · M. M. Nyamwange Conventional and organic agriculture are mainstream soil agronomic management practices used by farmers in Kenya to improve crop production and soil fertility. However, long-term use of these soil management systems can have deleterious or… RUF-39764 2018 CC BY 4.0 18 Jan 2023
Working Document Series Open Access Effect of chisel plough shank design on some soil physical properties and sorghum growth and yield attributes in Gardud soil types B.Z. Moayad · B.O. Sarra Effect of curved and obtuse shank designs of chisel plough on some physical properties of sandy clay loam and sandy clay soil as well as sorghum growth and yield attributes were studied. In sandy clay loam and sandy clay soil, the curved s… RUF-39349 2018 CC BY 4.0 28 Jul 2021
Journal articles Open Access Oil-Gas and Environmental Nexus: Impact of Human Actions on selected Soil Physicochemical Parameters in Port Harcourt and its environment, Nigeria E. Ibisime · W.P. Muyoma · L. Odokuma · R. Ramkat Impact of oil and gas activities on quality of soil in Port Harcourt and its environments was assessed. The study evaluates levels of physicochemical parameters associated with oil and gas industry in soils of 9 locations in Port Harcourt … RUF-39069 2018 CC BY 4.0 26 Feb 2021
Working Document Series Open Access Influence of Mavuno and farm yard manure fertilization on soil carbon fractions in soils of western Kenya S. C. Kamanga · R.N. Onwonga Soil management practices alter organic carbon fraction distribution and hence the ability of the soil to sequester carbon and/or resist erosion. The current study’s main objective was to investigate the influence of organic (FYM) and inor… RUF-38593 2018 CC BY 4.0 25 Aug 2020
Working Document Series Open Access Bioconversion of rice straw using lignocellulolytic microorganisms for improved soil fertility and sustainable crop productivity in Mwea, Kenya A. W. Karanja · J. M. Maingi · Ezekiel Mugendi Njeru Soil fertility in most crop producing areas in Kenya has greatly declined due to practices such as continuous cultivation and nutrient extraction through crop harvest without adequate nutrient replenishment. Presently, the need to boost su… RUF-38591 2018 CC BY 4.0 25 Aug 2020
Working Document Series Open Access Restoration status of Nakayiba wetland, Masaka, Uganda J. Bunyangha · H. S. Busulwa · P. Mucunguzi Many wetlands in Uganda have been converted into uses that are injurious to nature. However, besides just a few of them being restored, the success of restoration for any of them has not been assessed to guide future restoration efforts in… RUF-38538 2018 CC BY 4.0 13 Aug 2020
Working Document Series Open Access Restoration status of Nakayiba wetland, Masaka, Uganda J. Bunyangha · H. S. Busulwa · P. Mucunguzi Many wetlands in Uganda have been converted into uses that are injurious to nature. However, besides just a few of them being restored, the success of restoration for any of them has not been assessed to guide future restoration efforts in… RUF-38537 2018 CC BY 4.0 13 Aug 2020
Working Document Series Open Access Interaction entre les activités du 137Cs et la matière organique dans les sols du sous bassin versant de Bougoula en zone soudanienne du Mali B. Ahamadou · A. Bengaly · P. Bonte · D. Diallo Rural development, water resources management and more generally environmental protection programs need decision support tools. There is an urgent need to find simple, reliable and inexpensive diagnostic methods. The cesium 137 (137Cs) met… RUF-38533 2018 CC BY 4.0 13 Aug 2020
Theses & Dissertations Open Access Evaluation of some plant extracts as surface-active agents in drilling mud formulations T. C. Biwott This research was aimed at: evaluating physicochemical properties of Carica papaya -PL, Vernonia amygdalina - BL, Terminalia mantaly - TL and Moringa oleifera – ML; establishing rheological properties of the drilling mud formulated with th… RUF-38463 2020 CC BY 4.0 8 Aug 2020
Theses & Dissertations Open Access Evaluation of Soil properties and response of Maize (Zea mays L.) To bioslurry and mineral fertilizers in terraced acrisols and lixisols of Rwanda A. Fashaho Land terracing is promoted as a management practice for effective soil conservation in hilly areas of Rwanda. However, terraced lands are likely to have low crop productivity where management practices, especially fertilizer application, d… RUF-38462 2020 CC BY 4.0 8 Aug 2020
Journal articles Open Access Terminalia mantaly leaves as a novel additive in water-based drilling MUD J.O. Akaranta · T. C. Biwott · Oriji Boniface · A.K. Kiprop In drilling processes, mud additives and cuttings comprise waste drilling fluids which end up being disposed into the environment. Naturally based mud additives that are eco-friendly, cheap and can improve the rheological properties and fi… RUF-38421 2019 CC BY 4.0 3 Aug 2020
Journal articles Open Access Variations in Soil Chemical Properties, Bacteria and Fungi Populations Along Slope Positions and Profile Depths in Terraced and Non-terraced Lands of Rwanda highlands A. Fashaho · J.J. Lelei · A. O. Musandu · S.M. Mwonga +1 more The objective of the current study was to evaluate the effect of terracing on soil chemical and biological properties in the Rwanda highlands. The study was done in March 2017. Composite soil samples were collected from the top, middle and… RUF-38418 2019 CC BY 4.0 30 Jul 2020
Journal articles Open Access Effect of land terracing on soil physical properties across slope positions and profile depths in medium and high altitude regions of Rwanda A. Fashaho · J.J. Lelei · A. O. Musandu · S.M. Mwonga +1 more Although land terracing is promoted as a management practice for effective soil conservation in hilly areas, construction of terraces causes changes in soil properties. This study evaluated the effect of land terracing on some soil physica… RUF-38413 2019 CC BY 4.0 24 Jul 2020
Journal articles Open Access Topsoil removal and cultivation effects on structural and hydraulic properties P.O. Abam · S. Omovbude · Bassey Etim Udom Topsoil removal and intensive cultivation of fragile sandy loam soil may reduce water movement into and within the soil and decrease available water capacity. The purpose of this study was to determine if topsoil removal (SSR) and 10-year … RUF-38065 2018 CC BY 4.0 29 May 2019
Journal articles Open Access Soil physical properties and carbon/nitrogen relationships in stable aggregates under legume and grass fallow S. Omovbude · Bassey Etim Udom Short-season fallow with legumes and/or grasses can restore the soil organic C and nitrogen (N) and improve soil structure. In this study, we accessed the effects of 2-season legume and grass fallow on structural properties and C/N relatio… RUF-38062 2019 CC BY 4.0 29 May 2019
Journal articles Open Access Plastic limits and aggregates of soil after five annual applications of poultry manure and spent mushroom substrate Joy John Oluchi · Bassey Etim Udom Background and Objective: Information concerning moisture properties of soil on account of their direct relation with changes of soil matrix can be obtained by evaluating the Atterberg limits of the soil. The study was carried out to evalu… RUF-38059 2019 CC BY 4.0 29 May 2019
Journal articles Open Access Critical moisture content, bulk density relationships and compaction of cultivated and uncultivated soils in the humid tropics Joy Ehilegbu · Bassey Etim Udom Soil compaction affects soil fertility through increasing bulk density and soil strength. It also decreases infiltration rate, total porosity and amount of water stored in the root zone for crop use. In this study, we evaluated the optimum… RUF-38055 2018 CC BY 4.0 29 May 2019
Working Document Series Open Access The atmospheric deposition of phosphorus and nitrogen on Lake Kivu M. Bagalwa · H.A. Bootsma · F. Kansiime · K. Karume +2 more Phosphorus and nitrogen are most often identified as the nutrients limiting algal biomass and productivity in aquatic ecosystems. Sources of new nutrients for lakes include riverine input, atmospheric deposition, N fixation, and occasional… RUF-37164 2016 CC BY 4.0 20 Sep 2017
Theses & Dissertations Open Access Physio-chemical characteristics, isotopic signatures and hydrochemistry of two contrasting wetlands in two agro-ecological zones of Lesotho R. Mating Agricultural activities; grazing and cropping are thought to be the major contributors to non-point wetland pollution and other land degradation forms in the highlands and foothills while industrial effluents and domestic waste disposal ar… RUF-35534 2012 CC BY 4.0 30 Sep 2015
Working Document Series Open Access S1 and S2 selection of Longe 4 maize variety for tolerance to low soil nitrogen in Uganda G. Asea · R. Edema · P. Gibson · P. Namugga Low nitrogen is a major environmental stress leading to low yields in maize. Identification of varieties able to perform well under low soil N is of great significance to the resource poor farmers in the country especially when input costs… RUF-35227 2010 CC BY 4.0 17 Sep 2015
Working Document Series Open Access Experiences in the ‘One health approach’: Situational analysis of preparedness for Epi-Zoonotic emergencies in six Eastern Africa countries W. Bazeyo · G. Burnham · J. Keyyu · J. Kiguli +9 more This paper reports on a situation analysis that assessed the capacity for response to zoonotic emergencies in 6 countries, namely Uganda, Kenya, DR Congo, Ethiopia, Rwanda and Tanzania. Most of the countries did not have policies for prepa… RUF-34908 2010 CC BY 4.0 14 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 Determination of Uranium Concentration in Selected Agriculture Soils of Bah District in Tanzania and its uptake by Food Crops A.K. Kaaya · C.A. Makoti · E.M.M. Marwa This research aims to determine the level of uranium (U) contamination in selected agricultural soils of Bahi District and its uptake by food crops for its proper management. The research will involve determination of spatial distribution … RUF-33093 2012 CC BY 4.0 21 May 2014
Working Document Series Open Access Effectiveness of White Lupin (Lupinus albus) and Chickpea (Cicer arietinum ) in Enhancing Phosphorus Release from Rock Phosphate J.J. Lelei · R.N. Onwonga · J.P. Ouma Smallholder farming systems are characterised by application of suboptimal rates or non utilisation of inorganic fertilisers due to their exorbitant prices vis-à-vis low financial return from crops. Minjingu rock phosphate (MPR) would be a… RUF-32687 2012 CC BY 4.0 18 May 2014
Working Document Series Open Access Inheritance of Phosphorus use Efficiency and Resistance to Anthracnose in Selected Sorghum Genotypes Grown in the Acid Soils of Western Kenya S. Gudu · A. Nyambok · P. Okori The acid soils of Western Kenya where most of the sorghum is grown have very low available phosphorus, and thus cannot support optimal sorghum productivity. In addition, foliar anthracnose (Colletotrichum sublineolum L.) also reduces sorgh… RUF-32546 2012 CC BY 4.0 17 May 2014
