Applications of dairy wastewater as a fertilizer to agricultural land : an environmental management perspective
Date
2009-03
Authors
Torr, Leigh Christine
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
As with any form of intensive agriculture, there are potential environmental impacts
associated with the management and housing of livestock on dairy farms. Within the
field of dairy farming, particular focus falls to the issue of environmental degradation
of water resources, as this form of pollution is currently a major environmental issue
around the world. Conventional agricultural practices involving the application of
chemical fertilizers to land and crops are causing environmental problems as a result of
poor management practices. Dairy wastewater and manures could however be a
valuable resource for agricultural producers in the form of an alternate fertilizer for
their crops. Waste application as a fertilizer is more environmentally friendly than
chemical fertilizers, and could drastically reduce costs for farmers, whilst alleviating
storage and management problems often associated with farmyard manures (FYM).
The application of organic wastes, notably livestock manures, to land has historically
been important for maintaining soil fertility on farms in terms of nutrient status and
organic matter levels, as well as helping to reduce soil erosion and improve waterholding
capacity. The research sought to investigate the environmental and economical
feasibility of using dairy wastewater and manures as an alternative form of fertilizer
within agriculture in South Africa.
Description
Thesis (MSc (Geography and Environmental Studies))--University of Stellenbosch, 2009.
Keywords
Dissertations -- Geography and environmental studies, Theses -- Geography and environmental studies, Dairy waste -- South Africa, Animal waste -- South Africa, Farm manure -- South Africa, Waste products as fertilizers -- South Africa