In the CRF treatments, applied N varied from a minimum of
2.26 g per seedling to a maximum of 11.25 g. For the same treatments,
the range of P per seedling was 1.35–6.75 g, and the range
of K per seedling was 1.80–9.00 g. The operational-based treatments
contained considerably higher levels of all elements:
16.80 g N and K per seedling and 50.40 g P per seedling. The MAP
treatment was designed to deliver comparable P (50.96 g per seedling),
which corresponded to 10.78 g N. Although the TSP treatment
contained no N or K, P levels (50.85 g) were comparable to
the operational treatment.