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1. Observational and Modeling Methods to Inform Ecosystem Service MarketsInterest in quantifying the impacts of land management on ecosystem services has grown as governments, environmental organizations, and corporations have pledged to reduce greenhouse gas emissions, nutrient leaching, and other environmental impacts of human activities. Ecosystem service markets were formalized in the 1990s and originally deployed to mitigate point sources of air and water pollution. Associated protocols were fairly simple and easy to implement because quantification of point sources... S.J. Del Grosso, J. Delgado, D. Manter, C. Stewart, M. Vigil |
2. Developing Nitrogen and Phosphorus Fertigation Strategies in CottonSubsurface drip irrigation (SDI) is becoming a popular option for maximizing the water use efficiency of cotton (Gossypium hirsutum), especially in semi-arid environments of the Midsouth and Western United States. In the Texas High Plains where underground water resources from the Ogallala Aquifer are rapidly declining, there is increased adoption of water conservation technologies like center pivot and drip irrigation. In addition to increased water efficiency, drip irrigation allows... K. Lewis, H. Valencia, T. Roberts, J. Burke, G. Ritchie |
3. Water Use Efficiency and Soil Changes After Long-term Crop Rotation Under Limited IrrigationLong-term crop rotation intensity and diversity can affect key soil properties. In semi-arid regions, the combined factors of rotation and soil properties may also affect the overall water use efficiency from either limited irrigation or rainfall. The objective of this study was to evaluate changes in soil properties, and water use efficiency of corn grown under different rotation intensity and diversity and limited/supplemental irrigation. A field experiment was conducted over seven years in... D. Ruiz Diaz, P. Garcia Helguera, A. Rosa, O. Brian, K. Roozeboom |
4. Impacts of Crop Management on Grain Yield, Grain Quality, Cover Crop Biomass, Residue Cover, and Residual Nitrogen in Dryland SystemsCrop production depends on interactions among management practices, yet most studies evaluate the effect of individual practices rather than their interaction. This field experiment was established in 2024 at the Kansas State University Harold and Olympia Lonsinger Sustainability Farm (Osborne County, Kansas) to assess how combinations of common practices affect crop productivity and soil properties in a dryland system Treatments were a factorial combination of crop rotations (continuous... J. Schwartze, D. Ruiz Diaz, A. Obour, J. Holman, O. Brian, M. Reiman, A. Rosa |