Browsing BC-Department of Environmental Sciences by Issue Date

Now showing items 1-20 of 53

    • Soil Fertility Improvement Strategies for Increased Food Production in the Central Highlands of Kenya 

      Otor, S.C.J.; Mucheru-Muna, M. (Soil Science Society of East Africa, 2000-01)
      Continuous decline in soil productivity is a major constraint to the improvement of livelihoods of smallholder farmers of Kenya. In highlands, levels of soil nitrogen, phosphorus and sometimes potassium are low and the ...

    • Adoption and adaptation of nutrient replenishment technologies by farmers in Kirege sub-location of Central Kenya 

      Mucheru-Muna, M.; Muriu, F.; Kung'u, J.B.; Karega, R.; Njuki, J. (African Crop Science Society, 2003)
      Soil erosion, continuous cultivation, reduced land productivity, population pressure on land, low income, inappropriate and inadequate use of farm inputs such as fertilizers are some of the interrelated problems experienced ...

    • Improved food production by use of soil fertility amendment strategies in the central highlands of Kenya 

      Mugwe, J. N.; Mugendi, D.N.; Micheni, A.; Mugwe, J. N.; Kung'u, J.B.; Otor, S.C.J.; Gitari, J.; Mucheru-Muna, M. (Academy Science Publishers, 2003)
      Declining soil and crop productivity is a major problem facing smallholder farmers in eastern and central highlands of Kenya. This is caused by continuous cropping without addition of adequate external soil fertility inputs. ...

    • Nitrogen Fertilizer Equivalency Values for Different Organic Materials Based on Maize Performance at Kabete, Kenya 

      Mugendi, D.N.; Kung'u, J.B.; Kimetu, J.M.; Palm, C.A.; Mutuo, P.K.; Gachengo, C.N.; Nandwa, S. (Academy Science Publishers, 2004)
      Decline in crop yields has been a major problem facing small holder farming in Kenya and the entire sub-Saharan region. This is attributed mainly to the mining of macronutrients due to cropping without external addition ...

    • Soil Conservation and Fertility Improvement Using Leguminous Shrubs in Central Highlands of Kenya: NARFP Case Study 

      Mugendi, D.N.; Mugwe, J. N.; Okoba, B.; Tuwei, P.; O’Neill, M. (CIAT,, 2004)
      Declining land productivity with reduced crop yields has been a major problem facing smallholder farmers in the central highlands of Kenya. The major factors contributing to the reduced land productivity is soil impoverishment ...

    • Farmer participation in enhancing food productivity through agroforestry in the central highlands, Kenya 

      Mucheru-Muna, M.; Mugendi, D.N.; Kangai, R.; Kung'u, J.B.; Mugwe, J. N.; Otor, S.C.J. (African Network for Agroforestry Education (ANAFE, 2004)
      Declining food production is a major concern in Kenya. This decline is brought about by continuous cultivation of soils without adequate external inputs. A multidisciplinary farmers' participatory trial aimed at offering ...

    • The African Network for Soil Biology and Fertility: New Challenges and Opportunities 

      Mugendi, D.N.; Bationo, A.; Kimetu, J.; Ikerra, S.; Kimani, S.; Odendo, M.; Silver, M.; Swift, M.J.; Sanginga, N. (Academy Science Publishers, 2004)
      Soil fertility degradation has been described as the single most important constraint to food security in sub-Saharan Africa (SSA). Soil fertility decline is not just a problem of nutrient deficiency but also of ...

    • Impact of soil nutrient management practices on plant parasitic nematodes of maize in central Kenya 

      Mugendi, D.N.; Waceke, J.W.; Mbaru, N.J. (African Network for Agroforestry Education (ANAFE), 2004)
      Maize (Zea mays L.) is the staple food in Kenya. The current average production of 1.5-2 t per ha is far below the germ plasm potential of 3-7 t per ha. Low soil fertility, nematode and insect pests, diseases and poor ...

    • The place of agroforestry in the rehabilitation and utilisation of semi-desert environments of northern Kenya 

      Olukoye, Godfrey Alati; Wamicha, W. N.; van Eckert, M.; Kinyamario, I.; Mwanje, J. I. (African Network for Agroforestry Education (ANAFE, 2004)
      Increasing destruction and degradation of the natural resource base in the sand-duned landscapes of North Horr, Marsabit District, northern Kenya, are jeopardising efforts towards sustainable economic development. The ...

    • Gender-land degradation-livelihood nexus: lessonsfrom Ndome and Ghazi, Taita Taveta, Kenya 

      Waswa, F.; Mutheng, Kimanzi; Kutsch, Thomas (African Network for Agroforestry Education (ANAFE, 2004)
      As the world continues to grapple with the realities of sustainable development, it is becoming increasingly acceptable that meaningful progress cannot be made without active involvement of women and the youth at critical ...

    • Developing Agroforestry Curricula: A practical Guide for Academic Institutions in Africa and Asia 

      Rudebjer, P. G.; Temu, A. B.; Kung'u, J.B. (World Agroforestry Centre, 2005)
      We promote the view that agroforestry is not only a set of practices, but also about the processes in society that influence, and are influenced by, those practices. Recent advances in participatory approaches are heavily ...

    • Potential of Dryland Farming in Kenya and Environmental Implications 

      Waswa, F.; Mburu, John (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      With the arid and semi-arid lands (ASALs) accounting for more than 70%of Kenya's total land area, and supporting an increasing population of both humans and animals, investment in water resources development will be a ...

    • Gender and Environmental Management 

      Maina, L. W.; Owino, George Evans; Otor, S.C.J. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      The terms gender and development converge in various ways among them the consideration of varied roles that both sexes can play in development, the gendered distribution of benefits accruing from development together with ...

    • Energy for Sustainable Development 

      Kirubi, C. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      The concept of sustainable development refers to development that 'meets the needs of the present without compromising the ability of future generations to meet their own needs' (WCED, 1987). This has social, economic ...

    • Soil Fertility Enhancing Community Extension 

      Mucheru-Muna, M.; Mugendi, D.N.; Mugwe, J. N. (Manilla, 2006)
      This book ia an attempt to equip the extension personnel with soil fertlity packages that can easily be disseminated to farmer. The language is simple, while illustrations are used exclusively to explai technology usage ...

    • Application of Ecosystem Modelling in Environmental Management in Kenya 

      Olukoye, Godfrey Alati (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      Ecosystems are dynamic entities made up of several interactive biotic and abiotic factors that determine their production and productivity levels. Equally complex are the ecological processes that govern ecosystem ...

    • Opportunities and Challenges for Sustainable Agricultural Land Management in Kenya 

      Waswa, F. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      Despite technological advances in land management (i.e. use, care and improvement) across the world, land degradation not only persists, but also continues to escalate, thus threatening the livelihood of many agriculturally ...

    • Environment and Sustainable Development Nexus 

      Waswa, F.; Otor, S.C.J.; Mugendi, D.N. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      To appreciate the link between the environment and sustainable development, one needs to understand the basic concepts within ecology. While numerous literatures exists on this subject, ecology generally refers to the ...

    • The Potential Role of Life Cycle Approaches in Sustainable Development 

      Kituyi, E. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      Africa remains one of the most underdeveloped continents in the world. In the struggle to attain economic and social development, the region has _ witnessed serious unsustainable patterns of consumption and production (WSSD, ...

    • Understanding and Managing Eco-Conflicts and Environmental Insecurity 

      Waswa, F. (School of Environmental Studies and Human Sciences, Kenyatta University, 2006)
      The word conflict is commonly used in everyday speech to label various human experiences, ranging from indecision, disagreement and stress. A conflict situation thus contains the following four elements; a condition ...