Integrated system for recommending fertilization rates in pineapple (Ananas comosus (L.) Merr.) crop

Abstract

In recent years much attention has focused on the impacts of agriculture on climate change, due to this stage specialists in plant nutrition and soil fertility have achieved the task of generating adequate fertilization doses for pineapple. A methodology for Integrated System for Recommending Fertilizer Dose, was used. As a result, seven Thiessen polygons, where rainfall ranged from 1640 to 2841 mm was correlated. Therefore, three major soil groups were defined and classified as subunit level. Likewise, eight doses of fertilizers were generated as follows: N, P2O5 and K2O, with a fertilizer dose, a map is generated according to the cultivar: 230-138-300 for Creole pineapple Acrisol Cutánico (Chromic, Ferric); 460-161-480 for Cayenne and MD2 in Acrisol Cutánico (Endoarcíllico, Ferric); 345-161-450 for Cayenne and MD2 and Creole in Acrisol 253-138-450 for Cutánico (Endoarcíllico, Hyperdystric, Ferric); 391-161-450 for Cayenne and MD2 in Acrisol Umbric Cutánico (Endoarcíllico, Hyperdystric) and Acrisol Umbric Cutánico (Endoarcíllico, Hyperdystric, Ferric); 207-138-300 for Creole in Acrisol Umbric Cutánico (Endoarcíllico, Hyperdystric); 253-138-300 for Creole in Acrisol Umbric Cutánico (Endoarcíllico, Hyperdystric, Ferric); 253-138-360 for Creole in Acrisol Umbric Gleyic (Hyperdystric, Ferric); and 391-161-360 in Endogleyic Cambisol (Clayic, Eutric). These fertilizer doses were supplemented with micronutrients to obtain the expected results.