Phosphorus Soil Testing http://www.ipm.iastate.edu/ipm/icm/taxonomy/term/429/feed The taxonomy view with a depth of 0. en Soil testing and available phosphorus http://www.ipm.iastate.edu/ipm/icm/2000/9-18-2000/availablep.html Tips for phosphorus management. 2000 Antonio Mallarino IC-484(22) -- September 18, 2000 John E. Sawyer Phosphorus Soil Testing Soils Sun, 17 Sep 2000 14:00:00 -0500 jvandyk 1538 at http://www.ipm.iastate.edu/ipm/icm Interpreting P and K soil test results http://www.ipm.iastate.edu/ipm/icm/1999/1-18-1999/interpretpk.html 1999 Antonio Mallarino IC-482 (1) -- January 18, 1999 John E. Sawyer Phosphorus Soil Testing Potassium Soil Testing Soils Sun, 17 Jan 1999 13:00:00 -0600 jvandyk 1255 at http://www.ipm.iastate.edu/ipm/icm Interpreting P and K soil test results http://www.ipm.iastate.edu/ipm/icm/1999/1-18-1999/interpretpk.html 1999 Antonio Mallarino IC-482 (1) -- January 18, 1999 John E. Sawyer Phosphorus Soil Testing Potassium Soil Testing Soils Sun, 17 Jan 1999 13:00:00 -0600 jvandyk 1255 at http://www.ipm.iastate.edu/ipm/icm