Development and validation of a model for soil wetting geometry under Moistube Irrigation.

ABSTRACT: We developed an empirical soil wetting geometry model for silty clay loam and coarse sand soils under a semi-permeable porous wall line source Moistube Irrigation (MTI) lateral irrigation. The model was developed to simulate vertical and lateral soil water movement using the Buckingham pi (π) theorem. This study was premised on a hypothesis that soil hydraulic properties influence soil water movement under MTI. Two independent, but similar experiments, were conducted to calibrate and validate the model using MTI lateral placed at a depth of 0.2 m below the soil surface in a soil bin with a continuous water supply (150 kPa). Soil water content was measured every 5 min for 100 h using MPS-2 sensors. Model calibration showed that soil texture influenced water movement ([Formula: see text] < 0

SUBMITTER: Dirwai TL 

PROVIDER: S-EPMC8854397 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature