Decadal Nitrogen Fertilization Decreases Mineral-Associated and Subsoil Carbon: A 32-Year StudyCopyright © 2016 John Wiley & Sons, Ltd.Crop residues and manure are important sources of carbon (
C Response of soil microbial community to afforestation with pure and mixed species field. Soil was analysed for total carbon (
C) and nitrogen (N) contents, and microbial community