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Poster Number 243
See more from this Division: A05 Environmental Quality
See more from this Session: Symposium --Biogeochemistry of Relationships Among Soil Nutrients, Organic Carbon, and Water Quality: I (includes Graduate Student Competition) (Posters)
Monday, 6 October 2008
George R. Brown Convention Center, Exhibit Hall E
Abstract:
The application of manure to no-till soils is a concern to off-site
phosphorus (P) transport as surface applied manure P is highly
vulnerable to runoff water. New technologies to inject or improve
manure incorporation hold promise, but little consensus exists on
what methods best represent runoff losses. We compared runoff data
collected via three method: rainfall simulation on 2-m wide plots
with either 2 or 10 m flow paths; and and natural runoff from 100 m2
field plots. Rainfall simulation protocols tend to inflate the effect
of certain hydrological and chemical process, resulting in findings
that are not necessarily consistent with those observed with field
monitoring. Understanding how rainfall simulation results compare
with field and farm scale evaluations remains a major hurdle in the
conservation effects assessment process.
phosphorus (P) transport as surface applied manure P is highly
vulnerable to runoff water. New technologies to inject or improve
manure incorporation hold promise, but little consensus exists on
what methods best represent runoff losses. We compared runoff data
collected via three method: rainfall simulation on 2-m wide plots
with either 2 or 10 m flow paths; and and natural runoff from 100 m2
field plots. Rainfall simulation protocols tend to inflate the effect
of certain hydrological and chemical process, resulting in findings
that are not necessarily consistent with those observed with field
monitoring. Understanding how rainfall simulation results compare
with field and farm scale evaluations remains a major hurdle in the
conservation effects assessment process.
See more from this Division: A05 Environmental Quality
See more from this Session: Symposium --Biogeochemistry of Relationships Among Soil Nutrients, Organic Carbon, and Water Quality: I (includes Graduate Student Competition) (Posters)