Potassium: Are your levels slipping?
Potash levels are falling in some Ontario fields according to soil and tissue samples. K depletion is often a result of not fully accounting for K removal during forage years of the rotation. 3 years of alfalfa can remove more than 900 lb K2O /ac (Table 1). That’s 1500 lb/ac of muriate of potash (0-0-60). […]