Exchange resins measure rotation effect on nutrient availability
Salisbury, S. E. and N. W. Christensen . 2000. Better Crops 84:14-16
Abstract
Differences in nitrogen (N), phosphorus (P), and potassium (K) availability resulting from crop rotation were measured using ion exchange resins. Resin probes quantitatively measured differences in availability of the yield-limiting nutrient and detected differences in nonlimiting nutrients.
