Can you cut your P and K bills without affecting yield? It all hinges on soil indices and staying within the rules
Spreading potash. Photo: Roger Jones
In recent years high fertiliser prices or poor prospects for grain prices gave rise to the expression and practice of ‘taking a holiday from purchasing Ps and Ks’.
In cases where nutrient levels were already low, that resulted in a reduction in grain yield, but where levels were high it had little or no impact on yield.