长期不同施肥处理黑土磷的吸附-解吸特征及 对土壤性质的响应

王琼,展晓莹,张淑香,彭畅,高洪军,张秀芝,朱平,GILLES Colinet

Phosphorus Adsorption and Desorption Characteristics and Its Response to Soil Properties of Black Soil Under Long-Term Different Fertilization

Qiong WANG,XiaoYing ZHAN,ShuXiang ZHANG,Chang PENG,HongJun GAO,XiuZhi ZHANG,Ping ZHU,Colinet GILLES

Table 2 Phosphorus sorption characteristics of different treatments in black soils under long-term fertilization

年份 Year 处理 Treatment Langmuir 曲线方程 Langmuir equation 相关系数 R2 最大吸附量 Maximum adsorption capacity (Qmax) (mg·kg-1) 吸附亲和力常数 Adsorption constant K 最大缓冲容量 Max buffering capacity of soil P (MBC) (mg·kg-1) 吸附饱和度 Phosphorus sorption saturation (DPS) (%) 1990 CK C/Q=0.0091Q+0.0778 0.9905 109.96 0.12 12.85 9.71a NK C/Q=0.0058Q+0.0913 0.9796 170.71 0.06 10.95 6.16a NPK C/Q=0.0083Q+0.0179 0.9778 120.34 0.46 55.75 8.86a NPKM C/Q=0.0060Q+0.0914 0.9300 165.34 0.07 10.94 6.58a 2000 CK C/Q=0.0035Q+0.0558 0.9732 283.45 0.06 17.91 1.17b NK C/Q=0.0038Q+0.0533 0.9520 259.47 0.07 18.77 2.05b NPK C/Q=0.0058Q+0.0371 0.9611 171.50 0.16 26.94 12.59ab NPKM C/Q=0.0770Q+0.0198 0.9751 130.01 0.39 50.42 55.62a 2010 CK C/Q=0.0032Q+0.0799 0.9821 311.82a 0.04 12.96a 0.73c NK C/Q=0.0024Q+0.0600 0.9985 446.23a 0.04 16.36a 0.77c NPK C/Q=0.0046Q+0.0917 0.9533 218.29ab 0.05 11.5a 16.90b NPKM C/Q=0.0050Q+0.5000 0.9425 110.19b 0.01 2.35b 81.33a P value ** * NS * *