Abstract:To clarify the effects of different modifiers on the recovery of acidic tobacco-planting soil, the pot experiments were conducted to study the dynamic changes of soil pH, hydrolytic acidity, latent acid and soil exchange performance after applying Harvested Acidic soil amendment, Golden Leaf acidic soil amendment and lime. The results showed that soil amendments could increase soil pH by 3.01%~24.11%, reduce the soil hydrolytic acid by 16.08%~50.46%, decrease the exchangeable aluminum and exchangeable hydrogen by 51.80%~64.27% and 84.12%~93.56%, respectively, increase the total soil exchangeable base, the cation exchange capacity and salt saturation by 45.18%~46.16%, 0.33%~20.10% and 21.35%~49.78%, respectively. After applying the soil amendments, the soil pH increased first and then decreased, and it was stable after sixty days. The content of soil hydrolytic acid changed a little on the 30~90 day after transplanting of flue-cured tobacco, and increased slightly on the 120 days after transplanting. The exchangeable hydrogen and the exchangeable aluminum decreased in the soil with lime. But the exchangeable aluminum of the soil application with the Harvested Acidic soil amendment and Golden Leaf acidic soil amendment reduced until 120 days after transplanting the seeding of the flue-cured tobacco, and the exchangeable hydrogen increased during the 120 days after the seedling transplanting and then decreased drastically. After application the soil amendments, the exchangeable base, cation exchange capacity and salt saturation increased with small variation. Different soil amendments had different sources and components, and their recovery effects on acid soils were also different. The results of the study showed that recovery effect of lime was the best.