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Full-Text Articles in Life Sciences
Grazing And No-Till Cropping Impacts On Nitrogen Retention In Dryland Agroecosystems, Megan L. Mobley, Rebecca L. Mcculley, Ingrid C. Burke, Gary Peterson, David S. Schimel, C. Vernon Cole, Edward T. Elliott, Dwayne G. Westfall
Grazing And No-Till Cropping Impacts On Nitrogen Retention In Dryland Agroecosystems, Megan L. Mobley, Rebecca L. Mcculley, Ingrid C. Burke, Gary Peterson, David S. Schimel, C. Vernon Cole, Edward T. Elliott, Dwayne G. Westfall
Plant and Soil Sciences Faculty Publications
As the world's population increases, marginal lands such as drylands are likely to become more important for food production. One proven strategy for improving crop production in drylands involves shifting from conventional tillage to no-till to increase water use efficiency, especially when this shift is coupled with more intensive crop rotations. Practices such as no-till that reduce soil disturbance and increase crop residues may promote C and N storage in soil organic matter, thus promoting N retention and reducing N losses. By sampling soils 15 yr after a N tracer addition, this study compared long-term soil N retention across several …