The content of Olsen P, Bray-1 P, Mehlich-lP and extractable P with 0.01 mol/L CaCl2 and H2O were very high and exceeded crop needs.

• O-P比例降低；Ca-P比例基本一致; 土壤Olsen P、Bray-1 P、Mehlich-1 P、0.；01mol/L CaCl_2和H_2O提取的磷含量相当高;