No Phosphorus Applied

This photo is a plot of alfalfa growing on phosphorus deficient soil. Alfalfa was much taller a few feet away where phosphorus was applied.

Most of the stems where no fertilizer was applied are about 13 inches tall; whereas, the stems where fertilizer was applied are about 22 inches tall. No other clear symptoms of phosphorus deficiency were apparent in the field.

*Picture was taken in Washita County, OK on April 30, 1998, at first harvest.