1)fixation of atmospheric nitrogen,大气氮素固定2)fixation of atmospheric nitrogen,大气氮固定3)nitrogen fixation,氮素固定4)nitrogen fixation rate,氮素固定率5)Nitrogen fixation and transfer,氮素固定与转移6)Fixation of Nitrogen during composting,原位氮素固定
用法和例句
Comparision of two methods used to study the biological nitrogen fixation and nitrogen transfer from peanut to rice in aerobic soil of intercropping system;