Fig. 2. Response surfaces for broccoli aboveground biomass N for (a) 1993–1994, (b) 1994–1995, and (c) 1995–1996. Contour lines are in units of kg N ha-1. Response surface equations are given in Table 6.
Fig. 2. Response surfaces for broccoli aboveground biomass N for (a) 1993–1994, (b) 1994–1995, and (c) 1995–1996. Contour lines are in units of kg N ha-1. Response surface equations are given in Table 6.