Optimizing sowing window and planting density for enhanced growth, productivity and biochemical quality of senna (Cassia aungustifoli Vahl.)
This study demonstrates that sowing senna (Cassia angustifolia) during the second fortnight of September at a planting density of 45 × 30 cm optimizes vegetative growth, nutrient uptake, and economic returns by maximizing dry leaf yield, although these factors did not significantly influence sennoside concentration.