摘要
用连续液流法研究水处理土样对K+的吸附动力学特性,并采用5种动力学方程模拟土样中K+吸附过程,结果表明:一级动力学模型对土壤中K+吸附过程模拟效果最好,长期定位施肥对土壤中钾素的吸附过程动力学影响显著;不同施肥处理中,土壤对K+的吸附平衡时间及平衡吸附量差异显著,单施有机肥或有机肥与氮肥配施能增加土壤对钾素的吸附量。
The characteristics of K^＋ adsorbing kinetics of soil treated by water on long - term fertilization were studied by the liquid flow technique. After simulating by 5 kinds of kinetic equations, it was indicated that first - order kinetic equation was the best model for K^＋ adsorption in soil. The results shown that there were great effects of long - term located fertilization on soil potassium adsorption kinetics, great differences on the time and capacity of K^＋ e-quilibrium adsorption in different treatments, also that the quantity of potassium equilibrium adsorption increased in the treatment of organic manure or the treatment of organic manure and nitrogen fertilizer.
出处
《青岛农业大学学报（自然科学版）》
2007年第2期113-116,共4页
Journal of Qingdao Agricultural University(Natural Science)
基金
国家自然科学基金(40171049)资助
关键词
长期定位施肥
K^+吸附
化学动力学
吸附平衡时间
平衡吸附量
long - term located fertilization
K^＋ adsorption
chemical kinetics
time of equilibrium adsorption
quantity of equilibrium adsorption
作者简介
林明和（1955-），男，山东莱西人，高级农艺师，主要从事作物栽培研究
