ARS | Publication request: NATIONAL PHOSPHORUS RUNOFF PROJECT: NEW HAMPSHIRE

Submitted to: Internet Web Page
Publication Type: Other
Publication Acceptance Date: September 1, 2002
Publication Date: September 20, 2002
Citation: Boub, T., Kleinman, P.J., Sharpley, A.N., Rochette, E. 2002. National phosphorus runoff project: new hampshire. Internet Web Page. http://pswmru.arsup.psu.edu/phosphorus/NewHampshire.pdf

Technical Abstract: The National Phosphorus Research Project was developed to coordinate research on the interaction between agricultural management and agricultural phosphorus pollution. As part of the Project, rainfall/runoff experiments were conducted on a Marlow soil in New Hampshire to assess the effects of soil test phosphorus and manure management on runoff phosphorus concentrations. Results reveal that as soil test phosphorus increases in the Marlow soil, so too does the dissolved phosphorus concentration of runoff. The slope of the regression describing this relationship is comparable to those derived from other acidic soils in the northeastern US. Manure application temporarily overwhelms the effect of soil test phosphorus on runoff phosphorus. Thus, while long-term phosphorus management must address soil phosphorus content, near-term strategies must address manure management.