Productivity of ministumps and rooting of minicuttings of hybrids of Eucalyptus globulus labill in response to nitrogen/Produtividade de minicepas e enraizamento de miniestacas de hibridos de Eucalyptus globulus labill. Em resposta a nitrogenio

The aim of this study was to evaluate the productivity of ministumps and the rooting of minicuttings from hybrid clones of Eucalyptus globulus in response to nitrogen concentrations in nutritive solution, in a fertirrigation system. To do so, we used five clones, namely: two of Eucalyptus urophylla x Eucalyptus globulus (C-04 and C-16); two of Eucalyptus grandis x Eucalyptus globulus (C-26 and C-30) and one of Eucalyptus urophylla x Eucalyptus grandis (1213) as a comparator. Five N concentrations were tested (36, 72, 109, 164 and 218 mg [L.sup.-1]) in a statistical design ofrandomized blocks on a split plot arrangement with three replications. Six months after the implementation, using standard nutritive solution, in fertirrigation system, the treatment application began.