The Middle Cambrian noncalcareous algse are common fossils in the Burgess Shale of British Columbia. 贵州台江凯里组的非钙质藻类化石在我国中寒武统尚属首次发现,国外主要见于北美。
The characteristics of K + desorption kinetics on noncalcareous fluvo-aquic soil under long-term fertilization condition were studied using the liquid flow technique. 采用连续液流法研究了长期定位施肥潮土K + 解吸的动力学特性。
The characteristics of K+ desorption kinetics on noncalcareous fluvo-aquic soil under long-term fertilization condition were studied using the liquid flow technique. 摘要 采用连续液流法研究了长期定位施肥潮土K+解吸的动力学特性。