soil microbial biomass的意思|示意

To find out the relationship between soil microbial biomass C and N and soil fertility, soil microbial biomass C and N were compared in several types of soil with different fertilization levels.

通过对不同肥力水平黑土、棕壤、黄棕壤、红壤土壤微生物量碳氮的比较，研究和探讨土壤微生物量碳氮与土壤肥力的关系。

The objectives of this dissertation research were to compare the influences of different organic management practices on 1) soil microbial biomass, activity and plant available soil nutrients;

本论文的主要研究目标是：1）不同有机肥管理措施下土壤微生物及生物化学性质的变化；

The dynamic changes of soil microbial biomass Carbon (c) and soil enzyme activities during growth of corn were studied in field experiment.

采用大田试验法研究了玉米生育期内土壤微生物量碳和酶活性动态变化特征。

Soil available P was not affected by nematodes, while soil microbial biomass P increased obviously with the inoculation of nematodes.

接种线虫对土壤有效p的提高不明显，而对土壤生物量P有显著的增加。

Results showed that soil microbial biomass C, N, P significantly decreased after addition of atrazine. As composed with control, microbial biomass C, N and P decreased averagely 13.5%, 10.1%, 20.0%.

研究结果表明，在整个培养过程中，仅加莠去津的土壤中微生物生物量碳、氮、磷的含量均显著降低，与对照相比，分别平均降低了13.5%，10.1%，20.0%。

The zone change of soil microbial biomass C and N from north to south was not distinct.

土壤微生物量C、N从北到南的地带性变化规律不强。