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Long-term tillage, straw management and N fertilizer rate effects on crop yield, N uptake and N balance sheet in a Black Chernozem
A field experiment (established in autumn 1979, with monoculture barley [1980-1990] and barley/wheat-canola-triticale-pea rotation [1991-2008]) was conducted on a Black Chernozem [Albic Agricryoll] silty clay loam soil ...
Distribution of mycorrhizal fungi in different soil zone with pyrosequencing approach
We collected 83 soil samples distributed in all five soil types of Saskatchewan, and amplified 18s rDNA as our target DNA segment with primer pairs NS1/NS4 and AMV4.5NF/AMDGR. Sequencing results show that there is rich ...