十万火急！！！请英语高手帮忙翻译一下论文摘要，万分感激！！！

The this article main elaboration is spurts executes Cacl2 to the mature period black storm leaf tobacco influence and the regulative aspect research. Will spurt after the determination executes Cacl2 the black storm leaf tobacco chlorophyll content, the nitric acid salt content, the carbon nitrogen essential enzyme activity, leaf blade's DNA, RNA, as well as the leaf tobacco quality around change studies Cacl2 to spurt executes from now on to the black storm leaf tobacco influence, and according to the data result analysis research which will obtain, will discover spurts executes Cacl2 to the black storm smoke regulation way and the method.