Variabilidade espacial de produtividade de Euterpe oleracea irrigado.

Abstract

The expansion of the fruit has stimulated many farmers to plant commercial açai. The objective of this study was to evaluate the spatial variability and productivity of irrigated açai as a methodology using geostatistics. Selected for the sample, a block with an area of 13.4 hectares, equivalent to 625 plants/hectare. The spatial variability of the variable weight of fruits/plant and number of mature bunches/ plant had the best fit spherical model, with moderate spatial dependence for the variables analyzed, particularly in the months of highest production. The largest productions of irrigated açai palm concentrated in the months July to December with an average fruit weight of 2.50 kg and showed a reduction in fruit production between January and May, which registered an average weight of 1.80kg. The high number of emitted bunches/ plant present might have distributed the possible variations in weight of fruits in the area. The mathematical model that best fitted the data for fruit weight and number of mature bunches was the spherical model. Thematic maps generated by the estimation technique of kriging evidenced a spatial variability of fruit production.