Growing deeper: pathways to enhancing soil organic matter in annual and perennial dryland grain agroecosystems
The story of agriculture and human civilization is one of loss: loss of soil structure, soil carbon, ecosystem function, and diversity. As we find ourselves at the nexus of intersecting global challenges of radically altered biogeochemical cycles and anthropogenic climate and productivity influence, we urgently need to alter our relationship with the soil and biosphere that sustain our human systems. In this dissertation I evaluate two management strategies for enhancing soil organic matter (SOM) in dryland, grain fields in the U.S.: legume integration and perennial grains. These strategies have ...
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