Phosphorus fertilizer boosts tobacco growth, but excess harms quality.
Phosphorus fertilizer helps tobacco plants grow better roots and distribute nutrients more efficiently to the leaves. Applying 30 kg of P2O5 · hm(-2) led to the best root growth and nutrient absorption. However, too much phosphorus can weaken these positive effects. It's important to control the amount of phosphorus fertilizer to improve the quality of tobacco leaves.
