@article{melo_cunha_do amaral_2026,  title={Optimizing the number of subsamples for characterization of soil attributes in management zones},  volume={46},  ISSN={0100-6916},  url={https://doi.org/10.1590/1809-4430-Eng.Agric.v46e20250063/2026},  DOI={10.1590/1809-4430-Eng.Agric.v46e20250063/2026},  journal={Engenharia Agrícola},  publisher={Associação Brasileira de Engenharia Agrícola},  author={Melo, Derlei D. and Cunha, Isabella A. and do Amaral, Lucas R},  year={2026},  pages={e20250063} }