Agricultural effects on yield and nutritive value of grassland under a limited fertilisation rate on sandy soils in Flanders.

From 1999 to 2002, we studied the yield production and quality parameters of grassland installed on sandy soils (1) under normal management (NM), (2) under management with respect to meadow birds (MBM) -first mowing date 15 June or later- and (3) under botanical management (BM) -first mowing date 1 July or later. The experiments were conducted at two locations, Aalter and Geel. The biomass production under MBM and BM decreased by resp.