Rhizome Yield of Sweet Flag (Acorus calamus L.) as Influenced by Planting Season, Harvest Time, and Spacing

Figure 3

View of experimental plot ((A) at planting; (B) after 3 months; (C) after 6 months; (D) after 12 months) and different spacing treatments ((a) 20 × 20 cm; (b) 20 × 30 cm; (c) 30 × 30 cm; (d) 30 × 40 cm; (e) 40 × 40 cm).