Change of rhizosphereeffect was another important factor of population decline.
根际效应的改变是引起差巴嘎蒿种群衰退的又一重要因素。
2
The general tendency of microorganism distribution is that the microorganism of rhizosphere soil is more than that of Nonrhizosphere soil, the rhizosphereeffect(R/S) is obvious.
微生物分布总的趋势是根际多于非根际，而且根际效应（R／S）明显。
3
The effect of nitrogen fertilizer on soil enzymatic activity and rhizosphere microorganisms of Yumai 49-198 root system was studied in this paper.