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Eliminating Waste : Strategies for Sustainable Manure Management - Review -

  • Richard, T.L. (Department of Agricultural and Biosystem Engineering, Iowa Sate University) ;
  • Choi, H.L. (Department of Animal Science and Technology, CALS, Seoul National University)
  • Published : 1999.11.01

Abstract

Modern livestock production facilities face both challenges and opportunities with respect to sustainable manure management practices. Nutrient recycling is constrained by the size of modern livestock operations, the low nutrient density of liquid manures, and the spatial and temporal variability of manure nutrient concentrations. These constraints can and must be addressed or farmers will be increasingly drawn to nutrient wasting strategies such as anaerobic lagoons, wetlands, and other systems designed to treat and discharge nutrients to the environment. Intentional discharge of nutrients is difficult to justify in a sustainable agricultural production system, since replacing those nutrients through chemical fertilization requires considerable expenditure of energy. In contrast, there are several currently viable technologies which provide the homogenization and stabilization needed to successfully compete against chemical fertilizers, including composting, pelletization, and anaerobic digestion. Some of these technologies, particularly anaerobic digestion and composting, also open up increased opportunities to market the energy and nutrients in manure to non-agricultural uses. Future advances in biotechnology are likely to demonstrate additional options to transform manure into fuels, chemicals, and other non-agricultural products.

Keywords

Crop Farming;Livestock Farming;Livestock Manure;Waste;Nutrient Recycling

Cited by

  1. Farmer support for publicly funded sustainable agriculture research: The case of hoop structures for swine vol.16, pp.02, 2001, https://doi.org/10.1017/S0889189300008973
  2. Effectiveness of Mulching vs. Incorporation of Composted Cattle Manure in Soil Water Conservation for Wheat Based on Eco-Physiological Parameters vol.194, pp.1, 2008, https://doi.org/10.1111/j.1439-037X.2007.00291.x
  3. Mass and Energy Balances of Dry Thermophilic Anaerobic Digestion Treating Swine Manure Mixed with Rice Straw vol.2015, pp.2090-3146, 2015, https://doi.org/10.1155/2015/895015