SciELO - Scientific Electronic Library Online

vol.36 issue2Fertilization response likelihood for the interpretation of leaf analysesNitrogen, phosphorus and potassium accumulation in cotton grown in conventional and narrow spacing author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Ciência do Solo

On-line version ISSN 1806-9657


SILVA, André Luiz Pereira da et al. Response of 'Vitória' pineapple to nitrogen in coastal tablelands in Paraiba. Rev. Bras. Ciênc. Solo [online]. 2012, vol.36, n.2, pp.447-456. ISSN 1806-9657.

Informations about fertilization and mineral nutrition of the new fusariosis-resistant pineapple cultivars are still scarce, despite the importance of this crop. The purpose of this study was to evaluate the effect of increasing doses of N on fruit yield and quality of the pineapple cultivar 'Vitória' grown on a 'Humilúvico Espodossolo' in the region of Tabuleiros Costeiros, in the state of Paraíba. The experiment was arranged in a randomized block design, using five N doses (100, 200, 300, 500 and 600 kg ha-1N, as urea) applied 60, 180 and 270 days after planting (dap) with three replications. The following variables were evaluated: length and fresh matter of the 'D' leaf; contents of N, P and K in the portions with and without chlorophyll, 300 and 420 dap; average weight, yield, physical properties (fruit weight, length and medium diameter; crown weight and length) and chemical properties (pH, soluble solids -SS, titrable acidity - AT, and the SS/AT ratio) of the fruits at harvest. Increasing N doses linearly increased length and fresh matter of the 'D' leaf and N content and decrease both P and K contents of the chlorophyll portion 300 dap, but did not affect nutrient contents 420 dap; in the chlorophyll-free portion. Increasing N doses, also, led to an increase in K contents 320 dap, but to reductions 420 dap. Individual fruit weight and total yield increased with increasing N doses, as maximum values of 1.0 kg and 37.9 t ha-1 were estimated at doses of 409.0 and 439.0 kg ha-1 N, respectively. The N doses did not affect the fruit quality properties, which were compatible with the characteristics described for this cultivar.

Keywords : Ananas comosus comosus L; nitrogenous fertilization; fusariosis.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License