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Capillary flow responses in a soil-plant system for modified subsurface precision irrigation

Zainal Abidin, Mohamad Shukri and Shibusawa, Sakae and Ohaba, Motoyoshi and Li, Qichen and Khalid, Marzuki (2014) Capillary flow responses in a soil-plant system for modified subsurface precision irrigation. Precision Agriculture, 15 (1). pp. 17-30. ISSN 1385-2256

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Official URL: http://dx.doi.org/10.1007/s11119-013-9309-6

Abstract

Water movement in a soil-plant system was evaluated based on capillary flow in a modified subsurface irrigation system that incorporates a plant-water measuring device. Water from a reservoir tank located underneath the plant pot was supplied to the root zone through a fibrous medium. Evapotranspiration was measured from the water uptake and evaluations were performed based on soil moisture distribution and mass balance. Potential evapotranspiration was used as a reference for the plant-water uptake. Data were obtained from a test plant provided with the modified subsurface irrigation system. The plant was grown in a phytotron under controlled air temperature and humidity, and a comparison was made for different levels of soil moisture condition. The experimental results confirmed the operational efficiency of the modified subsurface irrigation system for precision irrigation.

Item Type:Article
Uncontrolled Keywords:capillary irrigation, crop water demand, fibrous sheet, soil-plant-atmosphere continuum, subsurface irrigation, water saving
Subjects:S Agriculture > SB Plant culture
Divisions:Electrical Engineering
ID Code:52051
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:52
Last Modified:30 Nov 2018 15:00

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