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http://dx.doi.org/10.17137/korrae.2015.23.2.036

Livestock Manure Nutrients Flow Analysis of Integrated Crop-Livestock Farming Model Reflecting the Regional Characteristics  

Lee, Joon Hee (Department of Agricultural Biotechnology, Seoul National University)
Choi, Hong Lim (Department of Agricultural Biotechnology, Seoul National University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.23, no.2, 2015 , pp. 36-46 More about this Journal
Abstract
Integration of crop-livestock farming has been a problem-solving mode for abatement of environmental pollution and recovery of resources in recent years. The objectives of this study were 1) to suggest the customized integration of crop-livestock farming model reflecting the regional characteristics through in-depth analysis of case study and 2) to analyze the livestock nutrients flow in terms of three primary elements as nitrogen(N), phosphorous(P), and potassium(K). The personal interview and survey were carried out in 2012 for a total of 161 farms from four different regions(NS, NW, JJ, YC) in South Korea. The mass balance analysis was used to suggest and evaluate the models for two sites(JJ and YC). The results showed that NS and NW sites produced relatively more livestock manure than the sites of YC and JJ because of the regional differences in livestock numbers and urbanization. The models were suggested for the site JJ and site YC, and 'two track model(energy and resource recovery)' and 'dispersal type model' were assigned respectively. For the nutrient flows, the releasing P and K with new models had increased up to 7%, while N release had decreased down to 15% in both YC and JJ sites compared to the present treatment system. Estimated value showed that there was oversupply of N (719 ton/yr) and $P_2O_5$ (1,269 ton/yr) in YC and deficiency of N (671 ton/yr) and excessive $P_2O_5$ (32 ton/yr) in JJ respectively. Therefore, P runoff has to be considered an eutrophication occurs in rural small stream when an integration of crop-livestock farm system is applied into both sites.
Keywords
Integrated Crop-Livestock Farming; Nutrient Mass Balance; Compost; Liquid fertilizer;
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Times Cited By KSCI : 1  (Citation Analysis)
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