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Reducing the Impacts of Agricultural Nutrients on Water Quality across a Changing Landscape

September 19, 2019 @ 11:00 am - 12:00 pm

Agricultural productivity in the United States has doubled over the last 50 years through agricultural intensification and technology adoption. Although the efficiency of agricultural systems has increased, water quality remains a concern with minimal measured improvements observed nationwide. This presentation will highlight the key points discussed in The Council for Agricultural Science and Technology’s (CAST) Issue Paper 64, providing an overview of the processes, conservation practices, and programs that influence the impact of agriculture on surface and groundwater quality. Complexities and difficulties associated with nutrient cycling and transport processes, management decisions and practice trade-offs, and federal conservation program effectiveness create immense challenges to achieving and measuring water quality improvement goals. Development of more precise nutrient recommendations, advancement of water monitoring methods to better differentiate among potential nutrient sources, design and implementation of novel conservation practices that address dissolved nutrient loss and in-stream nutrient retention, increased knowledge of processes influencing nutrient supply and transport, and increased cost-effectiveness of conservation programs integrating regional and industry-based collaboration are needed to continue to improve water quality in agricultural landscapes. Download this CAST Issue Paper at: cast-science.org/publications.


September 19, 2019
11:00 am - 12:00 pm
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