1、 Reduced products were analyzed by GC to determine of nitrogen - fixation activity in biologically compound fertilizer.
研究生物固氮活性,国际公认的方法是乙炔还原法.
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2、 Nitrogen fixation trees of Leguminosae and non - Leguminosae are important biological nitrogen fixation resources.
摘要豆科及 非 豆科固氮树种是重要的生物固N资源.
来源:互联网
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