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目录 题目、摘要................................................ .......1 内容来自论文无忧网 www.paper51.com 前言............................................. ...............1 内容来自www.paper51.com 1.实验部分....................................... .......... .....2 http://www.paper51.com
1.1实验前处理................................................. .2 内容来自www.paper51.com 1.1.1土样的采集和处理.........................................2 内容来自www.paper51.com 1.1.2烟样采集和处理 .......................................2 内容来自www.paper51.com 1.2主要仪器及试剂药品............................ ..............2 copyright paper51.com
1.2.1仪器................................. .. ..............2 http://www.paper51.com
1.2.2试剂药品 ..... .. ....................................2 内容来自www.paper51.com
1.3样品硅含量的测定............................................3 copyright paper51.com 1.4硅含量的计算式................... ... .......................4 内容来自www.paper51.com 2.结果与讨论..................................... ...............4 paper51.com
2.1 各烟种植地区土壤和烟叶的含硅状况..........................4 copyright paper51.com 2.2土壤中各形态硅含量与烟叶中硅含量的相关性........ ... .......6 copyright paper51.com 2.3土壤中各形态硅含量与烟叶中硅含量的简单分析......... .... ...7 paper51.com 2.4土壤中各形态硅素在烟草供硅中的作用.............. . . .......8 copyright paper51.com 2.5改进硅肥施用技术，提高硅肥肥效. ... ... ... .................8 paper51.com 3.小结................. ... ....................................9 内容来自www.paper51.com 致谢....................................................... ... .9 http://www.paper51.com
参考文献.......................................................10 内容来自论文无忧网 www.paper51.com 英文题目、摘要、关键词..........................................10 内容来自www.paper51.com |