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

Abstract

The results show that even in the less productive agricultural systems in the cool maritime regions grass-legume mixtures can contribute substantially and persistently to a more sustainable agriculture. Positive grass-legume interactions suggest that symbiotic N2 fixation is maintained even under these marginal conditions, provided that adapted species and cultivars are used.