The Influence of Nitrogen Applications and Low Rainfall Conditions on Yield of Mixed Grass-Legume Grassland for 2 Years

Mixed-species grassland containing legumes were suggested to increase yield compared monocultures. Furthermore, some be able sustain growth, even under drought conditions. The first aim of the current study was measure if multispecies with is also more productive when their N input due symbiotic N2 fixation taken into account. Our second determine benefit grass–legume mixtures in terms dry matter production naturally occurring grasslands, consisting monocultures and variable (a) Trifolium pratense, (b) Trifolium. repens, (c) Lolium perenne, (d) a mixture drought-tolerant grasses (GSWT based), assessed for over two years contrasting weather patterns. legume–grass seeding received either fixed (180 kg ha−1) or adapted N-fertilizer application (0–180 ha−1), latter taking assumed by showed improved both comparably humid drought-affected years. benefits considerably obvious but still measurable an regime. species diversity effect appears significantly dependent on additional supply enabled legumes’ N2-fixation. Legumes yielded equally well conditions, although major advantages during moderate White red clover, legumes, differed persistence elevated-N low-N fertilizer application, equal tolerance towards drought.