Working Document Series Open Access Upscaling the use of efficient and affordable soil fertility replenishment practices for small holder farmers of western Kenya B. Amar · M. A. Bekunda · A. K. Koech · M. N. Koech +4 more The study assessed the agronomic effectiveness of fertilizer use recommendations in western Kenya on maize yields. The treatments included: FURP – 75kg N/ha CAN and 26kgP/ha DAP; 2) FURP – 75kg N/ha CAN and 26kgP/ha DAP plus lime (2t/ha); … RUF-35093 2010 CC BY 4.0 16 Sep 2015
Working Document Series Open Access Effects of lime and phosphorus fertilizer on maize performance in acid soils of western Kenya J.R. Okalebo · V.S. Omenyo · C.O. Othieno Western Kenya continues to experience food insecurity due to increasing soil acidity and consequent phosphorus deficiencies with 0.9 million hectares of land having pH < 5.5. Liming is one of the interventions recommended to ameliorate … RUF-34675 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 Lime requirement of selected acid soils of Lesotho and response of field beans to lime application M.V. Marake · T. Nkheloane A greenhouse experiment was undertaken to evaluate the effects of lime application (at different rates) on soil pH, exchangeable aluminium (Al3+) and plant response to lime application across four of the strongly acidic soils series of Les… RUF-34651 2010 CC BY 4.0 9 Sep 2015
Working Document Series Open Access Determining appropriate mode and rate of applying lime to improve maize production in acid soils of north Kakamega and Siaya districts, Kenya J.K. Kiplagat · J.R. Okalebo · C.O. Othieno Increasing soil acidity is a major cause of low soil fertility in western Kenya where about 57,670 hectares is acidic. While liming can increase soil pH, the most appropriate method of application needs to be determined. This study aimed a… RUF-34599 2010 CC BY 4.0 8 Sep 2015
Working Document Series Open Access Soil microbial biomass changes with application of organic and inorganic in acid soil of Embu County, Central highlands of Kenya B.O. Danga · J.N. Mugwe · B. Verde Most studies are focused on fertiliser either organic or inorganic to improve soil fertility, health and crop yields in most of the farming systems worldwide. Although organic and inorganic soil fertility improvements impact indirectly on … RUF-34133 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Interactive effect of goat manure, phosphate fertiliser and lime on soil fertility in Embu County, Kenya B.O. Danga · J. Mugwe · B. Verde Nutrient mining resulting from crop uptake and erosion; and soil acidity which makes plant nutrients less available through different means such as phosphorus fixation and impairment of biological mediated processes in the soil. A study wa… RUF-34126 2014 CC BY 4.0 13 Aug 2015
Working Document Series Open Access Chemical Properties of Travertine from Different Sources in Rwanda with Regards to Their Calcium Oxide and Magnesium Oxide Contents E. Marwa · F.X. Naramabuye · E Semu · N.S. Sirikare This study was conducted in the districts of Rusizi, Korongi and Musanze districts, Rwanda in areas where travertine is found. The objective of the study was to characterize the chemical compositions of travertine for use in amending soil … RUF-33176 2012 CC BY 4.0 22 May 2014
Working Document Series Open Access Effectiveness of Rhizobium Leguminosarum Strains Nodulating Hairy Vetch, an Introduced Forage Legume in the Sandy Soils of Zimbabwe F Mapanda · A. Tumbure · M. Wuta Results from field experiments in Zimbabwe in 2009/10 - 2010 11 showed that nodulation of hairy vetch is erratic resulting in poor performance of the crop. The need to inoculate hairy vetch was therefore assessed using three (3) Rhizobium… RUF-32034 2012 CC BY 4.0 13 May 2014
Working Document Series Open Access Diversity and Symbiotic Effectiveness of Acid Tolerant Groundnut Rhizobia inWestern Kenya Soils J.K. Ogega · J.R. Okalebo · D.A. Onyango · B.A. Were This study was carried out to find suitable strains of rhizobia for use in ground nut production under acid-aluminium soils. Thirty-six rhizobia isolates tolerant to high soil aluminium were identified.. The isolates were gram negative rod… RUF-31909 2012 CC BY 4.0 12 May 2014
Working Document Series Open Access Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones R. Merckx · J.K. Ogega · J.R. Okalebo · D.K. Okello +5 more Groundnut is an important grain legume in the traditional cropping systems of western Kenya and eastern Uganda. This research focuses on assessing and utilising the biological nitrogen fixation (BNF) potential of groundnut in alleviating s… RUF-31894 2012 CC BY 4.0 12 May 2014
Working Document Series Open Access Effectiveness of Bradyrhizobia and Lime on Yield of Groundnuts and Maize Under Intercrop System in Acids Soils of Western Kenya J.K. Ogega · J.R. Okalebo · D.A. Onyango · C. Othieno +2 more Bradyrhizobia is the rhizobia species that fixes nitrogen in the groundnut crop. Soil acidity is a constraint to effective bradyrhizobia activity. Western Kenya is characterised by acid soils and thus unconducive for bradyrhizobia activity… RUF-31842 2012 CC BY 4.0 8 May 2014
Working Document Series Open Access Improving Soil Properties Through Use of Unburnt Local Limes in Acidic Soils of Burera District, Rwanda J.N. Mugwe · A. Nduwumuremyi · V. Ruganzu This study was carried out at Rwerere Research Station located in the highlands of Buberuka, Rwanda. Three local limes (Musanze, Rusizi and Karongi) were evaluated in a randomized complete block design (RCBD)) experiment established in Sep… RUF-31834 2012 CC BY 4.0 8 May 2014
