PRODUCTION OF GREEN COCONUT (Cocus nucifera, L.) FERTIRRIGATED IN THE NORTHEAST OF Pará
Cocos nucifer, L., tensiometry, Fertigation, localized irrigation
Aiming to generate information about irrigated agriculture in the coconut tree culture for the state of Pará, the present work aimed to study the economic viability of the implantation of an irrigated dwarf coconut cultivation, the costs of the types of operation of the irrigation system and the effects different percentages of the fertilization recommendation and soil water tensions. The experiment is conducted at the Reunidas farm of the company Sococo, in the municipality of Santa Izabel do Pará. The variety used is the Brazilian green dwarf with a 7.5x7.5x7.5m triangle spacing, using the randomized block design in a scheme 5x5 factorial with 3 block. The treatments consist of a treatment without irrigation and four more water tensions in the soil (15, 30, 45 and 60 kPa) and the fertilization carried out by the company and another four percentages of this recommendation applied via fertigation (50, 100, 150 and 200 %). The dwarf coconut tree project proved to be viable with attractive rates. The total annual cost of the diesel-powered irrigation system was higher than the electric one, requiring greater AP. The variables analyzed for the two-month period showed no significant difference, requiring a longer period of treatment evaluation.