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Subsurface drip irrigation emitter spacing effects on soil water redistribution, corn yield and water productivity

Emitter spacings of 0.3 to 0.6 m are commonly used for subsurface drip irrigation (SDI) of corn on the deep, silt loam soils of the U.S. Great Plains. Subsurface drip irrigation emitter spacings of 0.3, 0.6, 0.9 and 1.2 m were examined for the resulting differences in soil water redistribution, corn grain yield, yield components, seasonal water use, and water productivity in a 4‐year field study (2005 through 2008) at the Kansas State University Northwest Research‐Extension Center, Colby, Kansas. The results indicate that there is increased preferential water movement along the dripline (parallel) as compared to perpendicular to the dripline and that this phenomenon partially compensates for wider emitter spacings in terms of soil water redistribution. Corn yield and water productivity (WP) were not significantly affected by the emitter spacing with application of a full irrigation regime

© Applied Engineering in Agriculture, 2010, vol. 26, núm. 3, p.391-399

American Society of Agricultural and Biological Engineers

Author: Arbat Pujolràs, Gerard
Lamm, Freddie R.
Abou Kheira, Abdrabbo A.
Date: 2010
Abstract: Emitter spacings of 0.3 to 0.6 m are commonly used for subsurface drip irrigation (SDI) of corn on the deep, silt loam soils of the U.S. Great Plains. Subsurface drip irrigation emitter spacings of 0.3, 0.6, 0.9 and 1.2 m were examined for the resulting differences in soil water redistribution, corn grain yield, yield components, seasonal water use, and water productivity in a 4‐year field study (2005 through 2008) at the Kansas State University Northwest Research‐Extension Center, Colby, Kansas. The results indicate that there is increased preferential water movement along the dripline (parallel) as compared to perpendicular to the dripline and that this phenomenon partially compensates for wider emitter spacings in terms of soil water redistribution. Corn yield and water productivity (WP) were not significantly affected by the emitter spacing with application of a full irrigation regime
Format: application/pdf
Citation: Arbat, G., Lamm, F.R., i Abou Kheira, A.A. (2010). Subsurface drip irrigation emitter spacing effects on soil water redistribution, corn yield and water productivity. Applied Engineering in Agriculture, 26 (3), 391-399. Recuperat 30 setembre de 2011, a http://www.asabe.org/
ISSN: 0883-8542
Document access: http://hdl.handle.net/10256/3593
Language: eng
Publisher: American Society of Agricultural and Biological Engineers
Collection: Reproducció digital del document publicat a: http://www.ksre.k-state.edu/sdi/Reports/2010/ESpace10.pdf
Articles publicats (D-EQATA)
Is part of: © Applied Engineering in Agriculture, 2010, vol. 26, núm. 3, p.391-399
Rights: Tots els drets reservats
Subject: Aigua -- Utilització
Sòls -- Humitat
Regatge per degoteig
Soil moisture
Trickle irrigation
Water use
Title: Subsurface drip irrigation emitter spacing effects on soil water redistribution, corn yield and water productivity
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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