Crescimento de limeira ácida em diferentes porta-enxertos e fertilização complexada no terceiro ano de cultivo

Abstract

The objective was to evaluate the growth of Tahiti acid lime when grafted onto different rootstocks and fertilized with complexed fertilizers in the third year of cultivation. The experiment was conducted at the experimental farm of Embrapa Semiárido, from March 2023 to February 2024, using a Randomized Block Design (RBD) in a 2x6 split-plot scheme, with six rootstocks and two sources of phosphate fertilizers: a complexed fertilizer (CROPLEX) and monoammonium phosphate (MAP). The treatments were repeated in four blocks, totaling 48 plots. During the third year of cultivation, the Tahiti lime plants received fertilizations, and the growth variables were evaluated. Tahiti lime is one of the main citrus species cultivated, with great production potential in the semi-arid region. However, the success of the cultivation depends on the proper choice of rootstock, which must provide better canopy production, especially in the face of abiotic stresses such as water and nutritional stresses. The use of complexed fertilizers also emerges as an opportunity to optimize this choice, aiming at plant growth and development. The use of complexed fertilizers, such as CROPLEX, proved to be an efficient strategy to improve plant growth. The results indicate that, with the proper combination of rootstock and fertilization, it is possible to optimize canopy development and stem diameter, contributing to a more producti. and resilient cultivation in the face of environmental adversities.