Growth and development of cedar Australian in different doses of nitrogen, phosphorus and potassium

Abstract

The Australian cedar is a forest species of Meliaceae family with great potential for the production of hardwood. Studies related to fertilization and nutrition of this species are still incipient. The aim of this study was to evaluate the growth and early development of the Australian cedar at different levels of fertilization with nitrogen, phosphorus and potassium (NPK) in a cerrado Oxisol. In this sense, the experiment was developed at IFMG - Campus Bambuí. The experimental design was randomized blocks, using five treatments and four repetitions. The treatments consisted of doses corresponding to 50, 75, 100, 125 and 150% of the recommendation for Eucalyptus. The best growth and development of Australian cedar, at 180 days after planting, was obtained when applied doses of 45 kg ha-1 N, 135 kg ha-1 P2O5 and 67.5 kg ha-1 K2O.

Keywords

• nitrogen, phosphorus, potassium, toona ciliata var. australis