Simulating tall fescue pasture growth in Argentina

摘要

Tall fescue (Festuca arundinacea Schreb) pastures have the potential to maintain high production rates under limiting climate conditions, especially in dry summers, improving the seasonal distribution of forage growth and year round production (Tharmaraj et al. 2008). The purpose of this work was to test the ability and flexibility of the DairyMod biophysical pasture-simulation model (Johnson etal. 2008), to predict herbage mass accumulation (HMA), of tall fescue pastures from Argentina under several environmental conditions that included different seasons, nitrogen fertilizer application levels and irrigation.