寻找生物材料的英文人工翻译,急!!

Tobacco cultivation in Yunnan, the seedling stage, the regiment trees period, maturity and the harvest period, the use of selective culture medium for different areas a total of seven kinds of bacteria in soil ammoniated, the nitrifying bacteria and denitrifying bacteria selective cultivation and use of The largest contingent of a few of their number, a combination of factors, the number of under all conditions of the dynamic changes in the assessment of trends. The results showed that the rhizosphere soil bacteria in the three categories of slightly more than a few non-rhizosphere soil, ammoniated bacteria, denitrifying bacteria and denitrifying bacteria obviously exists between the antagonistic relationship between the available nitrogen in the soil content and bacteria ammoniation The number of positive correlation with the number of denitrifying bacteria-related.