Pastures maximise growth when kept in phase 2
Principle 2: Pastures will maximise their growth when kept in phase 2, when herbage mass is 1200-2500 kg/ha. At less than 1200 kg/ha, growth is limited by leaf area. At greater than 2500 kg/ha, growth is limited by light.
Figure 2 shows the three phases of pasture growth, and indicates that although pastures will persist at herbage mass above 800 kg DM/ha, maximum growth will occur in Phase 2 (1200-2500 kg DM/ha).