Recuperação de perfilhos em touceiras de açaizeiros cultivados em área de terra firme.

Abstract

The present study is part of the project "Development of Production Systems of Açaí for the Amazon Region", which has as its main objective to determine the management to be given to the Açaizeiro as to the number of plants per clump for the production of fruits and heart-of-palm. The experiment has been installed since October of 1984 at the headquarters of CPATU, in Belém, Pará, on terra firme soil. In this work we present the results regarding the number of tillers that regenerate in the clumps as a function of different treatments. Treatment one (no thinning) showed an average of 12.05, 14.18 and 12.94 plants per clump in the years 90, 91 and 92 respectively, being classified as large (> 2 m), medium (1 to 2 m) and small (<1 m). In treatments, two (4 plants/ clump), three (6 plants/ clump) and four (8 plants/ clump), were eliminated: 6.05, 3.02 and 1.19; 8.57, 4.14 and 1.62; 6.19, 2.37 and 1.33 in the same years respectively. It has been observed that, due to the control performed in the clumps to have the desired number of plants, the emergence of tillers has been reduced year after year.