1、Influence of the different NO_3~-/NH4_~+ on NRA and GSA
同一氮素水平不同NO_3~-/NH_4~+對NRA和GSA的影響

2、The NRA was not directly correlated with nitrogenase activity.
硝酸還原酶活性和根瘤固氮活性之間沒有直接關(guān)系。

3、The NRA decreased accordingly from the top to the base of the stem.
NRA在莖上各葉位中的分布由頂部向基部逐漸減少。

4、Effects of Salicylic Acid on Roots Growth and NRA in Rice
水楊酸對水稻幼苗硝酸還原酶活性和根系生長的影響

5、The phenomena were discussed in combination with NRA results.
結(jié)合NRA結(jié)果對實驗現(xiàn)象進行了分析。