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Chad Penn - Removing dissolved phosphorus from non-point sources with P removal structures: the good, the bad and the ugly - YouTube. Presented at the Spring 2022 water quality research seminar hosted by Iowa Nutrient Research Center. Duration 1:00:17 


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Chad Penn - Developing a New Approach to Soil Phosphorus Testing and Recommendations. Presented at the 2020 Conservation Tillage and Technology Conference, held March 3-4, 2020, Ada, OH, USA. Duration 30:21

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Mark Williams - When it rains, it pours: Conservation considerations for resiliency in a changing climate. Presented at USDA NRCS Conservation Outcomes Webinar Series, May 2021. Duration 58:33