@article{gebler_grego_vieira_kuse_2015,  title={Spatial influence of physical and chemical parameters on management zone definition in apple orchards},  volume={35},  ISSN={0100-6916},  url={https://doi.org/10.1590/1809-4430-Eng.Agric.v35n6p1160-1171/2015},  DOI={10.1590/1809-4430-Eng.Agric.v35n6p1160-1171/2015},  number={6},  journal={Engenharia Agrícola},  publisher={Associação Brasileira de Engenharia Agrícola},  author={Gebler, Luciano and Grego, Celia R. and Vieira, Abel L. and Kuse, Leonardo da R.},  year={2015},  month={Nov},  pages={1160–1171} }