TY - DATA T1 - Porous cup shape and installation mode influencing determinations of matric potential by tensiometers PY - 2017/12/27 AU - Hélio Henrique Soares Franco AU - Alvaro Pires da Silva AU - Cássio Antonio Tormena AU - Camila Jorge Bernabé Ferreira AU - Márcio Renato Nunes AU - Renato Paiva de Lima AU - Paulo Leonel Libardi UR - https://scielo.figshare.com/articles/dataset/Porous_cup_shape_and_installation_mode_influencing_determinations_of_matric_potential_by_tensiometers/5734215 DO - 10.6084/m9.figshare.5734215.v1 L4 - https://ndownloader.figshare.com/files/10090935 L4 - https://ndownloader.figshare.com/files/10090947 KW - puncture tensiometers KW - rounded porous cup KW - soil mud N2 - Abstract: The objective of this work was to determine the measurement accuracy of the soil water matric potential (ψm) by puncture tensiometers with either rounded or pointed porous cups, installed with or without “soil mud”, and to compare the performance of these tensiometers with that of tensiometers equipped with mercury manometers. The experiment was conducted in a Ultisol, in a randomized complete block design, in a factorial arrangement with five replicates. Puncture tensiometers with rounded porous cups, installed with “soil mud”, present more elevated accuracy for ψm determination in a wider measurement range, resembling tensiometers equipped with mercury manometers in drying soil. ER -