Short-Term Straw Returning Improves Quality and Bacteria Community of Black Soil in Northeast China

Abstract

Despite our extensive knowledge on the effects of long-term straw returning on soil, little is known about the effects of short-term straw returning. We identified three study sites and evaluated their soil organic matter (OM), pH, and enzyme activity after two years of straw returning treatment. Bacterial diversity and community were determined by 16s RNA sequencing. We observed elevated OM content and pH after short-term straw returning treatment. The bacterial phyla