机译:Effect of clover cultivar on production and nitrogen fixation in clover-ryegrass swards under dairy cow grazing
nitrogen fixation; 15N; white clover; red clover; clover cultivars; #x2018; Grasslands Huia#x2019; Grasslands Pitau#x2019; GrasslandsKopu#x201; Grasslands Pawera#x2019; Aran white clover#x2019;