Dimensão de malha amostral para caracterização da variabilidade espacial do K em Latossolo Bruno na cultura da macieira

Abstract

Precision fruit growing is recent in our country, using precision agriculture tools to work on different production issues. The georeferenced sample of only fruit growing still lacks methodological definitions, especially regarding the size of the sample. This work aims to evaluate the characterization of the spatial variability of K, by means of different dimensions of defects shown, and how to demonstrate the variation in the recommendation to adjust K by saturation at 4% and 5%. The experiment was conducted in a commercial maize production area of the company Rasip Agrosilvopastoril S.A, during the 2023/2024 season, in an area of 6.87 ha, which was generated by seven malhas showing quadricculated and overposts to the area, 0.25 ha, 0 .56 ha, 1 ha, 1.56 ha, 3.06 ha and 4 ha, generating 27, 12, 6, 4, 2 and 1 points shown respectively. The solo ponytail was made in all the bad things shown, not in winter, with a demonstration on a quadricycle (SoloDrill). Foram contains only complete analysis, being validated in the experiment or element K (potassium). For the thematic maps, interpolation methods are used by Krigagem, using the Inceres program. A survey of the quantity of potassium (K) was also carried out based on the size of the sample and recommendations based on saturation. The sample error of 0.25 was the best, followed by the error of 0.56, which presented the best spatialization of K's theories not only and recommendations through saturation in 4 and 5%. In relation to the size of the 75x75m display, it presents good performance. [resumo fornecido pelo autor]