To meet the increasing demand for forage quality from grassland, different strategies of reseeding are used in practice. Commercial seed mixtures are usually sown with different overseeding techniques such as slot-drill machines or combined harrows. Natural self-seeding could be an interesting alternative to improve grassland stands without any technical effort. Two field trials have been carried out by AREC Raumberg-Gumpenstein to investigate different methods of grassland renovation in mountainous regions with consideration of technique, frequency, seed mixtures and also natural self-seeding. The efficiency of natural self-seeding was studied by quantifying the total seed-amount, the species spectrum, and by testing the germination capacity of the seeds. Yield and forage quality were considered as well as the botanical composition of the treated plots.
Pötsch, E.M., Graiss, W., Resch, R. and Krautzer, B. (2013): Grassland renovation by natural self-seeding. 17th EGF Symposium “The role of grasslands in a green future – threats and perspectives in less favoured areas”, Akureyri, Island, Grassland Science in Europe, 18, 23. June - 26. June 2013, 490-492.