Browsing by Author "Mugendi, Daniel N."
Now showing items 21-40 of 81
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Fertilizer nitrogen recovery as affected by soil organic matter status in two sites in Kenya
Karunditu, M.W.; Mugendi, Daniel N.; Kung’u, James; Vanlauwe, B. (Springer, 2007)Management of nitrogen (N) nutrition is a vital aspect in maize production systems ofKenya. In Central andWestern parts of Kenya, high population density has eliminated the use of traditional fallow farming systems for ... -
Household's socio-economic factors influencing the level of adaptation to climate variability in the dry zones of Eastern Kenya
Mugendi, Daniel N.; Mugi-Ngenga, E.W.; Mucheru-Muna, M.W.; Mugwe, Jayne; Ngetich, F.K.; Mairura, F.S. (Elsevier, 2015-11)Climate variability has a negative impact on crop productivity and has had an effect on many small-holder farmers in the arid and semi-arid lands (ASALs). Small-holder farmers in Eastern Kenya are faced with the constraint ... -
Impacts of vegetative contour hedges on soil inorganic-N cycling and erosional losses in Arable Steep-lands of the Central Highlands of Kenya
Mutegi, James; Mugendi, Daniel N.; Verchot, Louis V.; Kungu, James (Springer, 2007)Moderate to steep landscapes and severe soil, water and nutrient losses characterize over 40% of arable land in the central highlands of Kenya. To study the effectiveness of biological methods in management and enhancement ... -
Improving food production using ‘best bet’ soil fertility technologies in the Central highlands of Kenya
Mugendi, Daniel N.; Mucheru-Muna, Monicah; Mugwe, Jayne; Kung’u, James; Bationo, A. (Springer, 2007)Declining crop productivity is a major challenge facing smallholder farmers in central highlands of Kenya. This decline is caused by continuous cultivation of soils without adequate addition of external inputs in form of ... -
Integrating Farmers and Scientific Methods for Evaluating Climate Change Adaptation Options in Embu County
Njeru, P.N.; Mugwe, Jayne; Maina, I.; Mucheru-Muna, Monicah; Mugendi, Daniel N.; Lekasi, J.K.; Kimani, S.; Miriti, J.; Oeba, V.O.; Esilaba, A.O.; Mutuma, E.; Rao, K.P.; Muriithi, F. (Springer International Publishing, 2014-11)Potential for promoting sorghum crop as a climate change adaptation strategy for rain-fed agriculture in Embu County, Kenya was evaluated using farmer perceptions and scientific methods. Three hundred and sixty six smallholder ... -
Length of growing season, rainfall temporal distribution, onset and cessation dates in the Kenyan highlands
Ngetich, F.K.; Mugendi, Daniel N.; Mucheru-Muna, M.; Mugwe, Jayne; Shisanya, C.A.; Diels, J. (Elsevier, 2013-12)Dependence on uncertain rainfall and exposure to unmitigated climate risk are major obstacles in efforts to sustainably intensify agricultural production and enhance rural livelihoods. There is generally enough seasonal ... -
Microbial biomass and acid phosphomonoesterase activity in soils of the Central Highlands of Kenya
Kiboi, Milka N.; Ngetich, F.K.; Mugendi, Daniel N.; Muriuki, A.; Adamtey, N.; Fliessbach, A. (Elsevier, 2018-12)Soil biological properties are the most sensitive soil quality indicators that respond quickly to short-term soil fertility management changes. We studied the combined effects of tillage and soil external inputs on total ... -
Mycorrhiza co-association with Aspilia pruliseta Schweif. and phosphorus uptake effects on growth of gadam sorghum in the semi-arid lower Eastern Kenya
Muchoka, James; Mugendi, Daniel N.; Njiruh, Nthakanio P.; Onyari, Charles N.; Njeru, E. M. (Academic Journals, 2020-08)Mycorrhiza fungi are important components of soil microbiota in the rhizosphere and greatly influence the uptake of mineral elements by plants. A greenhouse experiment was conducted at the University of Embu to evaluate ... -
Nitrogen fertilizer equivalencies of organics of differing quality and optimum combination with inorganic nitrogen source in Central Kenya
Kimetu, J.M.; Mugendi, Daniel N.; Palm, C.A.; Mutuo, P.K.; Gachengo, C.N.; Bationo, A.; Nandwa, S. (Kluwer Academic Publishers, 2004)Decline in crop yields is a major problem facing smallholder farmers in Kenya and the entire Sub-Saharan region. This is attributed mainly to the mining of major nutrients due to continuous cropping without addition of ... -
Nitrogen recovery by alley-cropped maize and trees from 15N-labeled tree biomass in the subhumid highlands of Kenya
Mugendi, Daniel N.; Nair, P.K.; Graetz, D.A.; Mugwee, Jayne; O'Neill, M.K. (Springer-Verlag, 2000-05)The effectiveness of tree-leaf biomass as a source of N to crops in agroforestry systems depends on the rate at which crops can obtain N from the biomass. A study was conducted to determine the fate of 15N labeled, ... -
Partial balance of nitrogen in a maize cropping system in humic nitisol of Central Kenya
Kimetu, J.M.; Mugendi, Daniel N.; Bationo, A.; Palm, C.A.; Mutuo, P.K.; Kihara, J.; Nandwa, S.; Giller, K. (Springer Netherlands, 2007)The application of nitrogen in a soil under agricultural production is subject to several pathways including de-nitrification, leaching and recovery by an annual crop. This is as well greatly influenced by the management ... -
Phosphorus availability and exchangeable aluminum response to phosphate rock and organic inputs in the Central Highlands of Kenya
Omenda, Jane A.; Ngetich, F. K.; Kiboi, Milka N.; Mucheru-Muna, M.; Mugendi, Daniel N. (Heliyon, 2021-03)Soil acidity and phosphorus deficiency are some of the constraints hampering agricultural production in tropical regions. The prevalence of soil acidity is associated with phosphorus (P) insufficiency and aluminum ... -
Phosphorus availability and exchangeable aluminum response to phosphate rock and organic inputs in the Central Highlands of Kenya
Omenda, Jane A.; Ngetich, Kipchirchir F.; Kiboi, Milka N.; Muna, Mucheru; Mugendi, Daniel N. (Heliyon, 2021)Soil acidity and phosphorus deficiency are some of the constraints hampering agricultural production in tropical regions. The prevalence of soil acidity is associated with phosphorus (P) insufficiency and aluminum ... -
Potential of deterministic and geostatistical rainfall interpolation under high rainfall variability and dry spells: case of Kenya’s Central Highlands
Kisaka, Oscar M.; Mucheru-Muna, M.; Ngetich, F.K.; Mugwe, Jayne; Mugendi, Daniel N.; Mairura, F.; Shisanya, C.A.; Makokha, G. L. (Springer, 2015-03)Drier parts of Kenya’s Central Highlands endure persistent crop failure and declining agricultural productivity. These have, in part, attributed to high temperatures, prolonged dry spells and erratic rainfall. Understanding ... -
The Potential of Organic and Inorganic Nutrient Sources in Sub-Saharan African Crop Farming Systems
Ngetich, F.K.; Shisanya, C.A.; Mugwe, Jayne; Mucheru-Muna, Monicah; Mugendi, Daniel N. (2012-02)he Potential of Organic and Inorganic Nutrient Sources in Sub-Saharan African Crop Farming System -
The Potential of Organic and Inorganic Nutrient Sources in Sub-Saharan African Crop Farming Systems
Ngetich, F.K.; Shisanya, C.A.; Mugwe, Jayne; Mucheru-Muna, M.; Mugendi, Daniel N. (2012-02) -
Predicting decomposition patterns of tree biomass in tropical highland microregions of Kenya
Mugendi, Daniel N.; Nair, P.K. (Kluwer Academic Publishers, 1997)Decomposition- and nitrogen-release patterns of biomass from three agroforestry multipurpose trees (Calliandra calothyrsus, Cordia africana and Grevillea robusta) were investigated in four contrasting environments ... -
Prof. George Dei Speech by Principal on Academic Activism
Mugendi, Daniel N. (2014) -
Rainfall Variability, Drought Characterization, and Efficacy of Rainfall Data Reconstruction: Case of Eastern Kenya
Kisaka, Oscar M.; Mucheru-Muna, Monicah; Ngetich, F.K.; Mugwe, Jayne; Mugendi, Daniel N.; Mairura, F. (Hindawi Publishing Corporation, 2014-08)This study examined the extent of seasonal rainfall variability, drought occurrence, and the efficacy of interpolation techniques in eastern Kenya. Analyses of rainfall variability utilized rainfall anomaly index, coefficients ... -
Rainfall Variability, Drought Characterization, and Efficacy of Rainfall Data Reconstruction: Case of Eastern Kenya
Kisaka, Oscar M.; Mucheru-Muna, M.; Ngetich, F.K.; Mugwe, Jayne; Mugendi, Daniel N.; Mairura, F. (Hindawi Publishing Corporation, 2015)This study examined the extent of seasonal rainfall variability, drought occurrence, and the efficacy of interpolation techniques in eastern Kenya. Analyses of rainfall variability utilized rainfall anomaly index, coefficients ...