目的高密度培养重组细菌和高效表达重组幽门螺杆菌尿素酶a融合蛋白。
Cell density cultivation and high level expression of recombinant urease a fusion protein in Helicobacter pylori.
施用有机肥（酵素菌肥）处理的硝化细菌数量低于施用尿素处理，但反硝化细菌数量则明显高于尿素处理。
The quantity of nitrifiers disposed by organic manure was a little fewer than that by urea treatment, but there were obviously more denitrifiers.
施用有机肥（酵素菌肥）处理的硝化细菌数量低于施用尿素处理，但反硝化细菌数量则明显高于尿素处理。
The quantity of nitrifiers disposed by organic manure was a little fewer than that by urea treatment, but there were obviously more denitrifiers.
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