Dual permeability soil water dynamics and water uptake by roots in irrigated potato fields
Abstract: Water movement and uptake by roots in a drip-irrigated potato field was studied by combining field experiments, outputs of numerical simulations and summary results of an EU project (www.fertorganic.org). Detailed measurements of soil suction and weather conditions in the Bohemo-Moravian highland made it possible to derive improved estimates of some parameters for the dual permeability model S1D_DUAL. A reasonably good agreement between the measured and the estimated soil hydraulic properties was obtained. The measured root zone depths were near to those obtained by inverse simulation with S1D _DUAL and to a boundary curve approximation. The measured and S1D _DUAL-simulated soil water pressure heads were comparable with those achieved by simulations with the Daisy model. During dry spells, the measured pressure heads tended to be higher than the simulated ones. In general, the former oscillated between the simulated values for soil matrix and those for the preferential flow (PF) domain. Irrigation facilitated deep seepage after rain events. We conclude that several parallel soil moisture sensors are needed for adequate irrigation control. The sensors cannot detect the time when the irrigation should be stopped.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Dual permeability soil water dynamics and water uptake by roots in irrigated potato fields ; volume:62 ; number:5 ; year:2007 ; pages:552-556 ; extent:5
Biologia ; 62, Heft 5 (2007), 552-556 (gesamt 5)
- Urheber
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Doležal, František
Zumr, David
Vacek, Josef
Zavadil, Josef
Battilani, Adriano
Plauborg, Finn
Hansen, Søren
Abrahamsen, Per
Bízik, Ján
Takáč, Jozef
Mazurczyk, Wladyslaw
Coutinho, João
Štekauerová, Vlasta
- DOI
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10.2478/s11756-007-0109-1
- URN
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urn:nbn:de:101:1-2409221547024.759909108422
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:20 MESZ
Datenpartner
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Beteiligte
- Doležal, František
- Zumr, David
- Vacek, Josef
- Zavadil, Josef
- Battilani, Adriano
- Plauborg, Finn
- Hansen, Søren
- Abrahamsen, Per
- Bízik, Ján
- Takáč, Jozef
- Mazurczyk, Wladyslaw
- Coutinho, João
- Štekauerová, Vlasta
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