Grass–legume mixtures sustain strong yield advantage over monocultures under cool maritime growing conditions over a period of 5 years

Grassland-based livestock systems in cool maritime regions are commonly dominated by grass monocultures receiving relatively high levels of fertilizer. The current study investigated whether grass-legume mixtures can improve the productivity, resource efficiency and robustness of yield persistence of cultivated grassland under extreme growing conditions over a period of 5 years.Monocultures and mixtures of two grasses (Phleum pratense and...