Porous cup shape and installation mode influencing determinations of matric potential by tensiometers

Abstract

-The objective of this work was to determine the measurement accuracy of the soil water matric potential (ψ m ) 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 ψ m determination in a wider measurement range, resembling tensiometers equipped with mercury manometers in drying soil.

Performance of Autonomous Irrigation Unit via Mobile Application for Arugula Yield

“…Manual irrigation management via soil was performed using puncture tensiometers (Franco et al, 2017), measured by a digital tensimeter with the aid of a soil-water characteristic curve (Figure 1) to determine soil moisture, and, subsequently, depth (0-20 cm), through which the depth irrigation was determined. FIGURE 1.…”