AVALIAÇÃO FITOTECNICAS DE MUDAS DE (Punica granatum L.) SUBMETIDAS A ADUBAÇÃO NITROGENADA E FOSFATADA.

Abstract

The Romãzeira production of seedlings is one of the fundamental stages, of extreme importance for the productive process and the success and of a longer longevity of the orchard. The present work had as objective to evaluate the initial growth and plant biomass of pomegranate seedlings submitted to nitrogen and phosphate fertilization. The experimental design was a randomized block with five treatments and six replicates. The treatments were: (0 g, 1.5 g, 3 g, 4.5 g, 6 g of phosphorus nitrogen (0 mg, 100 mg, 200 mg, 300 mg, 400 mg). The following variables were evaluated for nitrogen fertilization, height, diameter, shoot dry mass, root dry mass, leaf numbers and leaf area. The absence of urea resulted in the highest growth of pomegranate seedlings, with a decrease due to the increase of nitrogen doses, the pomegranate seedlings responded in a quadratic manner to the phosphate fertilization, for all studied variables, except the foliar area, the 300 mg dm³ dose had the highest response for the variables, number of leaves, number of branches and stem diameter, however, with the lowest value of the root length.