摘要
本文运用Langmuir公式,研究了安徽省几种代表性的旱地土壤:砂姜黑土、粘盘黄褐土、和黄红壤的磷吸附曲线,探索了最大吸附量b、吸附能常数K和吸附量Y。结果表明,最大吸附量和吸附能常数K能较好地反映土壤的固磷与供磷状况,可为合理施用磷肥提供依据。
Phosphorous adsorption curves were investigated with several principal upland soils in Anhui Province—black meadow soil, clay pan cinnamon soil and yellow—red soil, and all fit single Langmuirs equation. The characteristics of phos—phorous adsorption by soils—the maximum adsorbing capacity 'b', the constant of adsorption energy 'k' and the adsorbing capacity 'y' were also discussed. The results indicated that maximum adsorbing capacity and adsorption energy were comprehensively retated the phosphorous adsorption and the phosphorous supplying capacity with soils. The present results may supply a basis for rationally applying phosphorous fertilizer.
出处
《安徽农业科学》
CAS
1992年第3期263-265,共3页
Journal of Anhui Agricultural Sciences
关键词
磷
吸附曲线
旱地
土壤
安徽
The phosphorous adsorption curve, Langmuir's equation, The maximum adsorbing capacity, The constant of adsorption energy
