minor elements
6.The major and minor elements of proto-porcelain that dig from site of WuCheng of JiangXi were determined using the energy disperse X-ray fluorescence (EDXRF) empirical coefficient method in non-destruction. Using the intensity dependent model provided by instrument and the standard porcelain to calculate the correction coefficient,the matrix correction was conducted.
7.RE can promote the roots to grow quickly and increase the activity of roots. It can promote the roots to absorb more macronutrients of N,P,K, Ca,Mg and more minor-elements of Cu and Zn,raise the contents of K, Ca,Zn,Cu and the activity of nitrate reductase(NRA)in sugarcane and develop the metabolism of nutrition.
8.The Chukchi Sea, together with its northern borderland, is the key area to understand modern and past oceanographic changes of the Arctic Ocean. 60 surface sediment samples and Core M03 were selected and analyzed major and minor elements, stable carbon and nitrogen isotopes, and other sedimentologic parameters, with the objectives for understanding sediment sources, spatial and temporal changes of sedimentary environments in the area.
