8Online Computer Fei Yu Center. China apple industry will approach world advanced leve[EEB/OL]. [2006-11-7]: http:// www. feiyu. com. cn/wangba/news. php? newsid=33276.
9Dejong T M,Day K R,Johnson R S. Partitioning of leaf nitrogen with respect to within canopy light exposure and nitrogen availability in peach [J]. Trees, 1989,3,89-95.
10Glenn M G. Effect of calium on cell wall structure, protein phosphorilation and protein in apples [J]. Plant Cell Physiol, 1988,29(4) :565-572.
