Drought stress and nitrogen levels impact tobacco growth and nutrient accumulation.
The study looked at how drought stress and nitrogen levels affect the growth and nutrient accumulation in flue-cured tobacco plants. Different nitrogen rates were tested in a pot experiment using a specific tobacco variety. Results showed that higher nitrogen levels improved plant growth under normal conditions, but inhibited growth at the highest rate. Dry matter and nutrient accumulation increased with nitrogen application, following a pattern of slow-fast-slow. Drought stress caused earlier peaks in dry matter and potassium accumulation compared to normal conditions, indicating potassium sensitivity to drought.