title: Nitrogen-fixing microorganism
design: Extracting soil DNA from the rhizosphere and non-rhizosphere of Kareliniacaspia in the Ebinur Lake WetlandPCR amplification to obtain nifH geneExtracting soil DNA from the rhizosphere and non-rhizosphere of Kareliniacaspia in the Ebinur Lake WetlandPCR amplification to obtain nifH gene