Affiliation: | 1.Institute of Crop Science and Plant Breeding, Grass and Forage Science/Organic Agriculture, Kiel University, Hermann-Rodewald-Str. 9, 24118, Kiel, Germany ;2.USDA-ARS, Pasture Systems and Watershed Management Research Unit, Building 3702, Curtin Road, University Park, PA, 16802, USA ;3.Grass Based Dairy Systems, Animal Production Systems Group, Wageningen University (WUR), Wageningen, The Netherlands ; |