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ARS Home » Plains Area » Lincoln, Nebraska » Agroecosystem Management Research » Research » Publications at this Location » Publication #113744
Title: RUNOFF LOSSES OF N AND P FROM SOILS RECEIVING MANURE FROM SWINE FED LOW PHYTATE AND TRADITIONAL CORN DIETS

Author
item Wienhold, Brian
item Paschold, Julie
item Gilley, John

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 7/1/2000
Publication Date: 10/10/2000
Citation: WIENHOLD, B.J., PASCHOLD, J.S., GILLEY, J.E. RUNOFF LOSSES OF N AND P FROM SOILS RECEIVING MANURE FROM SWINE FED LOW PHYTATE AND TRADITIONAL CORN DIETS. AGRONOMY ABSTRACTS. P. 208. 2000.

Interpretive Summary: Runoff losses of N and P from soils receiving animal manure contribute to eutrophication of surface waters. Low phytate corn as a feed source has the potential to reduce P content of swine manure. Runoff losses of N and P were measured from plots receiving either manure from swine fed a low phytate diet, manure from swine fed a traditional corn diet, or inorganic fertilizer. Eight runoff events occurred during the 1999 growing season removing 2.9 kg/ha of sediment from the plots. Inorganic N and dissolved P concentrations were highest during the first runoff event. Most N leaving the plots in runoff was in the organic form. Concentration of N and P in runoff were strongly correlated with application rates.

Technical Abstract: Runoff losses of N and P from soils receiving animal manure contribute to eutrophication of surface waters. Low phytate corn as a feed source has the potential to reduce P content of swine manure. Runoff losses of N and P were measured from plots receiving either manure from swine fed a low phytate diet, manure from swine fed a traditional corn diet, or inorganic fertilizer. Eight runoff events occurred during the 1999 growing season removing 2.9 kg/ha of sediment from the plots. Inorganic N and dissolved P concentrations were highest during the first runoff event. Most N leaving the plots in runoff was in the organic form. Concentration of N and P in runoff were strongly correlated with application rates.