| dc.description.abstract | A factorial experiment testing N, P and K fertilizers, and a
series of simpler, two-treatment (control and NPK) fertilizer trials
were established in a range of jack pine stands to determine the
application of a foliar analysis technique for predicting potential
growth response of stands to fertilization. The technique was based
on a foliar diagnostic system, and involved the simultaneous comparisons
of first season responses in dry weight, nutrient concentration and
nutrient content of foliage in a single graphical display. Preliminary
diagnosis revealed that N was the major growth limiting nutrient on
the majority of the sites. The technique was therefore tested with
foliar N response data, and individual stands were ranked according to potential responsiveness to fertilizer additions. It is recommended
that actual (longterm) growth responses be compared with predicted
responses to test the accuracy of the technique. | |
