FERTIRRIGAÇÃO E FERTILIZANTES DE LIBERAÇÃO GRADUAL PARA A IMPLANTAÇÃO DE GRAMADO ESPORTIVO

Abstract

The sports turfgrass requires cautious care to show good development and "playability". The type of fertilizer and the way of application of this fertilizer directly interfere in its quality, for this, it is necessary to obtain information on the most appropriate method of fertilization. The objective of the present work was to compare fertilizers of gradual liberation and fetirrigation with the conventional fertilization in order to obtain higher quality of grass Zeon or Celebration. The experiment was conducted in the experimental area of ​​the Faculty of Agronomic Sciences - FCA / UNESP, Botucatu Campus (SP). The design was in randomized blocks, in subdivided plots, with Zeon and Celebration grass, as main plot, and five managements of fertilization (1. without fertilization, 2. fertirrigation, 3. fertilization with conventional fertilizers, 4. fertilization with fertilizer of 5. fertilization with controlled release fertilizer), in the subplots, and four replications, from January to June, with the evaluations being carried out every fifteen days. The results were evaluated using the Green Index Rate (TCV), Dark Green Color Index (ICVE), Grass Index, height, Dry matter Phytomass (DM), stolon dry matter and rhizome and root, root length. Zeon grass had a higher green cover rate, as well as higher dry matter accumulation of stolons and rhizomes than Celebration. Celebration grass had higher grass index and dark green color index than Zeon. Management with conventional fertilizer provided the highest values of growth characteristics of the two species, but required more cuts and labor for application.