The objective of this study was to evaluate the influence of different sampling grids density in the lime requirements in an Oxisol. The experiment was conducted at a rural property located in Sidrolândia city, Mato Grosso do Sul state, in the Brazilian 'Cerrado' . In the soil attributes mapping, regular sampling grid was used consisting of 99 points, spread over an area of 90 ha. Other two grids (51 and 27 points) were derived by deleting lines or lines and points from the original one. Based on the results of soil analysis, the lime requirement at each sample point was calculated. Using geostatistical techniques the spatial variability of lime requirement was studied and grid configuration for each sample was tested. By kriging, maps were made. By reducing the number of sampling points, 11% of the experimental area showed an overestimation and 8% underestimation comparing with the lime requirement made using the highest sampling grid density. Densidade amostral de solo e recomendação de calcário em um Latossolo Vermelho R E S U M O Objetivou-se, com este estudo, avaliar a influência de diferentes grades amostrais na recomendação de aplicação de calcário em um Latossolo. O trabalho foi desenvolvido em uma propriedade rural localizada em Sidrolândia/ MS, região do cerrado brasileiro. No mapeamento dos atributos do solo utilizou-se uma grade amostral regular composta por 99 pontos Palavras-chave: agricultura de precisão geoestatística variabilidade espacial correção da acidez do solo