Fig. 2. Grass yield (a) and N uptake (b) for the 1994 midseason growth period (5 April–23 Aug. 1994). Unique regression model for each compost treatment because compost treatments were significantly different at P = 0.05 (Tables 4 and 5). Yield and N uptake (left axis) are for same time period as yield accumulation rate and N uptake rate (right axis).