摘要
采自甘肃省中，东部地区５个黄绵土的吸磷特性与Ｆｒｅｕｎｄｌｉｃｈ、Ｌａｎｇｍｕｉｒ、Ｔｅｍｋｉｎ方程都很吻合，相关系数在０．９３８０～０．９９９５之间（ｐ＜０．０１），其中以Ｆｒｅｕｎｄｌｉｃｈ方程的拟合性最好。磷的最大吸附量（ｘ＿ｍ）在５２７．１５～５８６．５１μｇｐｇ￣（－１）之间变化，平均为５５５．５６±２１．８２μｇｐｇ￣（－１）。供试土壤对磷的解吸量与吸附量呈极显著正相关（ｒ为０．９８９３～０．９９９８）。
The adsorption properties of yellow mein soils,sampled from east and middleregion in Gansu,fit in with Freundlich,Langmuir and Temkin equation. The correlation coef-ficients ranged from 0.9380 to 0.9995(p<0.01).The best fitness was with Freudlich equa-tion. The maximum adsorption amounts(x_m)varied from 527.15 to 586.51 μgpg￣(-1),the aver-age value was 555.56±21.82 μgpg￣(-1).There was a significantly positive correlation betweenthe desorption amounts and adsorption amounts(r=0.9893～0. 9998).
出处
《甘肃农业大学学报》
CAS
CSCD
1995年第4期347-350,共4页
Journal of Gansu Agricultural University
关键词
黄绵土
磷酸盐
吸附与解吸
yellow mein soil
phosphate
adsorption and desorption
