Y Xiao, Y Liao, J Hou, L Li, T Xu, F Ma, F Yu… - Open Life …, 2022 - degruyter.com
In this study, the data of fertility indicators of soil samples (0–20 cm) in 1980s, 2000 and
2015 in Chenzhou city were used, and the soil integrated fertility index (IFI) was calculated …