Chemical fertilizer reduction combined with organic fertilizer affects the soil microbial community and diversity and yield of cotton oleh YingWu Shi, YingWu Shi, YingWu Shi, XinXiang Niu, XinXiang Niu, BaoZhu Chen, BaoZhu Chen, ShengHai Pu, ShengHai Pu, HongHong Ma, HongHong Ma, Pan Li, Pan Li, GuangPing Feng, GuangPing Feng, XingWang Ma, XingWang Ma