Browsing by Author "Mugendi, Daniel N."
Now showing items 1-20 of 81
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Adapting African Agriculture to Climate Change
Kisaka, Oscar M.; Mucheru-Muna, M.; Ngetich, F.K.; Mugwe, Jayne; Mugendi, Daniel N.; Mairura, F. (Springer, 2015)Drier parts of Embu County, Eastern Kenya, endure persistent crop failure and declining agricultural productivity which have been attributed, in part, to prolonged dry-spells and erratic rainfall. Nonetheless, understanding ... -
Alley cropping of maize with calliandra and leucaena in the subhumid highlands of Kenya Part 1. Soil-fertility changes and maize yield
Mugwe, Jayne; Mugendi, Daniel N.; Nair, P.K.; O’neill, M.K.; Woomer, P.L. (Kluwer Academic Publishers, 1999-06)Although N-rich leaf biomass of multipurpose trees is known to be a good source of N to crops, integrating such trees into crop production systems is a major challenge in the development of viable agroforestry systems. ... -
Alley cropping of maize with calliandra and leucaena in the subhumid highlands of Kenya Part 2. Biomass decomposition, N mineralization, and N uptake by maize
Mugendi, Daniel N.; Nair, P.K.; Mugwe, Jayne; O'Neill, M.K.; Swift, M.J.; Woomer, P. (Kluwer Academic Publishers, 1999-06)A major challenge in developing agroforestry approaches that utilize tree-leaf biomass for provision of N to crops is to ensure synchrony between the N released from decomposing prunings and N demand by crops. A study was ... -
Arbuscular Mycorrhizal Fungi Colonization in the Rhizosphere of Aspilia pruliseta Schweif. ext Schweif in the Semiarid Eastern Kenya
Muchoka, James P.; Mugendi, Daniel N.; Njiruh, Nthakanio P.; Onyari, Charles N.; Mbugua, Paul K.; Njeru, Ezekiel M. (Sage, 2020-09)The use of arbuscular mycorrhizal fungi (AMF) to enhance soil phosphate uptake is a biological technique considered to cure phosphate deficiency in soils. This study investigated association of Aspilia pruliseta Schweif ... -
Assessment of farmers’ perceptions of soil quality indicators within smallholder farms in the central highlands of Kenya
Mairura, F.S.; Mugendi, Daniel N.; Mwanje, J.I.; Ramisch, J.J.; Mbugua, P.K. (Springer, 2007)A study was conducted to determine farmers’ perceptions of soil quality and soil management practices that influenced soil fertility within farmers’ fields in Chuka and Gachoka divisions in central Kenya highlands. Soils ... -
Available technologies to replenish soil fertility in East Africa
Okalebo, J.R.; Othieno, C.O.; Woomer, P.L.; Karanja, N.K.; Semoka, J.R.; Bekunda, M.A.; Mugendi, Daniel N.; Muasya, R.M. (Springer, 2006)Low inherent soil fertility in the highly weathered and leached soils largely accounts for low and unsustained crop yields in most African countries. But in particular, the major nutrients, nitrogen (N) and phosphorus (P), ... -
Changes in Soil Organic Matter as Influenced by Organic Residue Management Regimes in Selected Experiments in Kenya
Waswa, B.S.; Mugendi, Daniel N.; Vanlauwe, B.; Kung’u, J. (Springer, 2007)The failure to understand the dynamics of soil organic matter (SOM) is a major limitation to the sustainability of smallholder production systems that predominantly relied on organic resources for the maintenance of soil ... -
Conservation tillage, local organic resources and nitrogen fertilizer combinations affect maize productivity, soil structure and nutrient balances in semi-arid Kenya
Kihara, J.; Bationo, A.; Mugendi, Daniel N.; Martius, C.; Vlek, P.L. (Springer, 2011-01)Smallholder land productivity in drylands can be increased by optimizing locally available resources, through nutrient enhancement and water conservation. In this study, we investigated the effect of tillage system, organic ... -
Decomposition of Cassia siamea loppings in semiarid Machakos, Kenya
Mugendi, Daniel N.; Mochoge, B.O.; Coulson, C.L.; Stigter, C.J.; Sang, F.K. (1994)The rate of decomposition of Cassia siamea Lam. prunings in an alley cropping system was investigated using litter bags in the semiarid area of the Machakos District, Kenya, during the short rains of 1988 and the long rains ... -
Dissemination of Integrated Soil Fertility Management Technologies Using Participatory Approaches in the Central Highlands of Kenya
Mugendi, Daniel N.; Mugwe, Jayne; Mucheru-Muna, Monicah; Karega, R.; Muriuki, J.; Vanlauwe, B.; Merckx, R. (Springer Netherlands, 2011-06)Declining soil fertility and productivity is a critical problem facing smallholder farmers in the central highlands of Kenya. A study to improve soil fertility and farm productivity within the smallholder farming systems ... -
The diversity of rural livelihoods and their influence on soil fertility in agricultural systems of East Africa – A typology of smallholder farms
Tittonell, P.; Muriuki, A.; Shepherd, K.D.; Mugendi, Daniel N.; Kaizzi, K.C.; Okeyo, J.; Verchot, L.; Coe, R.; Vanlauwe, B. (2010)Technological interventions to address the problem of poor productivity of smallholder agricultural systems must be designed to target socially diverse and spatially heterogeneous farms and farming systems. This paper ... -
Economic evaluation of local inputs in Meru South District, Kenya
Mucheru-Muna, Monicah; Mugendi, Daniel N.; Mugwe, Jayne; Kung’u, James (Springer, 2007)Declining land productivity is a major problem facing smallholder farmers in Kenya today. This decline is as a result of reduced soil fertility caused by continuous cultivation without adequate addition of manures and ... -
Effect of incorporating Cassia siamea prunings on maize yield in an alley cropping trial in semiarid Kenya
Mugendi, Daniel N.; Mochoge, B.O.; Coulson, C.L.; Stigter, C.J.; Sang, F.K. (1997)The influence of soil-incorporated Cassia siamea prunings on nutrient status of maize leaves, grain and yield was studied in an alley cropping experiment in semiarid Machakos, Kenya, during the 1988 long and short rainy ... -
Effect of plant biomass, manure and inorganic fertilizer on maize yield in the central Highlands of Kenya
Mugwe, Jayne; Mugendi, Daniel N.; Kungu, James; Mucheru-Muna, Monicah (2007)Soil fertility degradation remains the major biophysical cause of declining per capita crop production on smallholder farms in sub-Saharan Africa. Appropriate soil fertility regimes, are therefore, critical for improved ... -
Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping system in Meru South District, Kenya
Mucheru-Muna, Monicah; Mugendi, Daniel N.; Kung’u, James; Mugwe, Jayne; Bationo, A. (Springer, 2007-01)Soil nutrient depletion as a result of continuous cultivation of soils without adequate addition of external inputs is a major challenge in the highlands of Kenya. An experiment was set up in Meru South District, Kenya ... -
Effects of selected soil and water conservation techniques on runoff, sediment yield and maize productivity under sub-humid and semi-arid conditions in Kenya
Ngetich, F.K.; Diels, J.; Shisanya, C.A.; Mugwe, Jayne; Mucheru-muna, M.; Mugendi, Daniel N. (Elsevier, 2014-05)tillage practices on runoff amounts, sediment yield and maize yields under semi-arid and sub-humid environments. Field trials were set in Kigogo primary school in Meru South Sub-County, Tharaka Nithi County, representing ... -
Effects of selected soil and water conservation technologies onnutrient losses and maize yields in the central highlands of Kenya
Okeyo, A.I.; Mucheru-Muna, M.; Mugwe, Jayne; Ngetich, F.K.; Mugendi, Daniel N.; Diels, J.; Shisanyaaa, C.A. (Elsevier, 2014-02)tMitigating nutrient loss is a prerequisite of sustainable agriculture in the tropics. We evaluated threesoil and water conservation technologies (mulching, minimum tillage and tied ridging) for two croppingseasons (long ... -
Evaluation of Leucaena leucocephala as a source of N for maize
Mafongoya, P.L.; Mugendi, Daniel N.; Pedereira, C. (1997-01)Prunings of leucaena [Leucaena leucocephala (Lam.) De Wit] have long been regarded as a useful alternative to N fertilizer, but N use efficiency by crops is often low. The potential exists to synchronise nutrient ... -
Evaluation of the Potential of Using Nitrogen Fixing Legumes in Smallholder Farms of Meru South District, Kenya
Mugwe, Jayne; Mugendi, Daniel N.; Odee, D.W. (Springer, 2007)Soil fertility depletion in sub-Saharan Africa is a big constraint to increased food production to feed the ever-growing human population. Use of legumes to improve soil fertility is an option in the central highlands of ... -
Farming systems’ typologies analysis to inform agricultural greenhouse gas emissions potential from smallholder rain-fed farms in Kenya
Musafiri, Collins M.; Macharia, , Joseph M.; Ng’etich, Onesmus K.; Kiboi, Milka N.; Okeyo, Jeremiah; Shisanya, Chris A.; Okwuosa, , Elizabeth A.; Mugendi, Daniel N.; Ngetich, Felix K. (Elsevier B.V, 2020)Most sub-Saharan Africa smallholder farming systems are highly heterogeneous. Direct quantification of greenhouse gas emissions from these farming systems is hampered by di- versity at farm-level. Each farm contributes ...