Abstract
The concentration of arsenic in corn grain was not affected by the use of poultry manure from chickens which had been fed 3‐nitro 4‐hydroxy phenyl arsonic acid. Corn was grown on plots receiving in excess of 600 Mt/ha over a three year period which is 10 to 20 times normal use. The results indicate that arsenic is not concentrated in corn grain when manure from chickens fed 3‐nitro 4‐hydroxy phenyl arsonic acid as a feed additive is used as a soil amendment on Delaware's sandy coastal plain soils.

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