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		Journal of The Korean Society of Grassland and Forage Science :: Vol.32 No.4 pp.387-396 DOI:https://doi.org/10.5333/KGFS.2012.32.4.387 Open abstract    
Journal of The Korean Society of Grassland and Forage Science :: Vol.32 No.4 pp.387-396
			DOI:https://doi.org/10.5333/KGFS.2012.32.4.387
			 
			