Browsing BC-Department of Environmental Sciences by Title
Now showing items 1-20 of 53
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Adoption and adaptation of nutrient replenishment technologies by farmers in Kirege sub-location of Central Kenya
(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 ... -
The African Network for Soil Biology and Fertility: New Challenges and Opportunities
(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 ... -
Agroforestry for Land and Water Management in Kenya
(School of Environmental Studies and Human Sciences, Kenyatta University, 2007)A groforestry is an age-old practice that contains a strong element of r\management. It is a collective name for land-use systems and technol . where woody perennials are deliberately used on the same land-management ... -
Application of Ecosystem Modelling in Environmental Management in Kenya
(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 ... -
Assessment of farmers' perceptions of soil quality indicators within smallholder farms in the central highlands of Kenya
(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 ... -
Assessment of Occupational Safety Concerns in Pesticide Use Among Small-Scale Farmers in Sagana, Central Highlands, Kenya
(Springer, 2011)Small-scale farmers in Sagana area of central Kenya constitute a population at risk due to intensive use of pesticides in the production of mainly horticultural crops for commercial purposes. This chapter examines the ... -
Available technologies to replenish soil fertility in East Africa
(Springer Netherlands, 2007)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), ... -
Bioproduction Systems and their Environmental Implications
(School of Environmental Studies and Human Sciences, Kenyatta University, 2006)Bioproduction is a new term that has been coined to refer mainly to the agricultural processing and animal/ fish production systems of the agricultural industry. These two sectors are very critical for many African countries, ... -
Changes in Soil Organic Matter as Influenced by Organic Residue Management Regimes in Selected Experiments in Kenya
(Springer Netherlands, 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 ... -
Climate Change and Crop Yield in Sub-Saharan Africa
(Springer International Publishing, 2015)Recent scientific evidence shows that crop yields in many Sub Saharan Africa (SSA) countries are likely to be severely affected by climate change. Reliance on rainfall in this region increases the vulnerability of cereal ... -
Developing Agroforestry Curricula: A practical Guide for Academic Institutions in Africa and Asia
(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 ... -
Dissemination of Integrated Soil Fertility Management Technologies Using Participatory Approaches in the Central Highlands of Kenya
(Springer Netherlands, 2011)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 ... -
Economic Environmental Valuation
(School of Environmental Studies and Human Sciences, Kenyatta University, 2007)This chapter attempts to place a monetary value on environmental resources describing various methods of valuing an environmental resource with respect to costs and benefits. This is because externalities do arise from ... -
Effect of Organic Inputs and Mineral Fertilizer on Maize Yield in a Ferralsol and a Nitisol Soil in Central Kenya
(Springer Netherlands, 2011)Declining land productivity is a major problem facing smallholder farmers in Kenya today. This decline primarily results from a reduction in soil fertility caused by continuous cultivation without adequate addition of ... -
Energy for Sustainable Development
(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 ... -
Environment and Sustainable Development A Guide for Higher Education in Kenya
(School of Environmental Studies and Human Sciences, Kenyatta University, 2007)Over the last five decades the world has witnessed a number of significant and unprecedented environmental problems on scales not witnessed before, such as environmental deqradation and pollution, loss of biodiversity, ... -
Environment and Sustainable Development Nexus
(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 ... -
Environmental Philosophy, Education and Sustainable Development Nexus
(School of Environmental Studies and Human Sciences, Kenyatta University, 2007)Since the United Nations Conference on Human Environment, of 1972, governments have made it a policy to integrate sustainable development concerns in national agenda at all levels. The universities globally have responded by ... -
Evaluation of the Potential of using Nitrogen Fixing Legumes in Smallholder Farms of Meru South District, Kenya
(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 ...
