The Influence of Long-term Fertilization on Soil Acidification

摘要

Based on the long-term experimental field of Jilin Agricultural University as a platform. Aiming at exploring the influence of long-term fertilized on soil acidity changes in research area. The results showed that: compared with CK group, the soil pH declined as a result of applying nitrogenous fertilizer chronically. Instead the content of exchangeable acid, exchangeable hydrogen and exchangeable aluminum increased. The content of soil organic matters reduced with the decreased of the soil pH. Application of phosphate fertilizer and potassium fertilizer could achieve the same effect. But the Influence was not as significant as the nitrogen fertilizer.