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| DOI: | 10.1016/j.agwat.2011.11.019 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0378377411003246
Last checked: 03/28/2014
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Benes, S. E;
Adhikari, D. D.;
Grattan, S. R.;
Snyder, R. L. |
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| Author Affiliation: | Benes: Department of Plant Science; Adhikari: Center for Irrigation Technology, California State University, Fresno; Grattan and Snyder: Department of Land, Air, and Water Resources, University of California, Davis |
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| Title: | Evapotranspiration potential of forages irrigated with saline-sodic drainage water |
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| Source: | Agricultural Water Management. Vol. 105, March 2012, p. 1-7. |
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| Publishing Information: | [Amsterdam]: Elsevier Scientific Pub. |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Effluent water use; Evapotranspiration rate; Leymus triticoides; Lysimeters; Paspalum vaginatum; Saline water; Agropyron elongatum
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| Cultivar Names: | SeaIsle; Jose; Rio |
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| Abstract/Contents: | "In the western San Joaquin Valley (SJV) of California, re-use of saline-sodic drainage water (DW) for the irrigation of salt tolerant forages and field crops is an important strategy for drainage water reduction and to extend irrigation water supplies. Drainage reuse designs require estimates of crop water use under saline conditions, so this study employed two methods to estimate the actual evapotranspiration (ETa) of saline-irrigated forages. Using sand-filled drainage lysimeters, ET was measured for 'Jose' tall wheatgrass (TWG; Thinopyrum ponticum var. 'Jose') creeping wildrye (CWR; Leymus triticoides, var. 'Rio') and Paspalum (Paspalum vaginatum, var. 'SeaIsle') irrigated with saline DW with an electrical conductivity (EC) averaging 13.2 dS m-1. Annual ET in 2005 (20 January to 28 December) was 1470 mm for TWG, 1376 mm for CWR, and 1275 mm for Paspalum. Comparing to standardized reference evapotranspiration (ETo), the annual (ETa/ETo)lys ratios in 2005 were 0.98 for TWG, 0.92 for CWR, and 0.85 for Paspalum. Forage ET was also estimated by a surface renewal (SR) method in large pastures of TWG and CWR irrigated with saline DW. For TWG, the seasonal (ETa/ETo)SR in 2005 was 0.94, slightly lower than the ratio of 0.98 determined by lysimetry. For CWR, the seasonal (ETa/ETo)SR was only 0.73 in 2005; however, in 2006 it was 1.03 which was closer to the ratio of 0.92 determined by lysimetry in 2005. Conditions were less uniform in the CWR pasture as compared to the TWG pasture which may have caused the greater variability in (ETa/ETo)SR for this forage. These findings, along with earlier work, demonstrate that tall wheatgrass, creeping wildrye and Paspalum are suitable candidates for DW re-use systems for the western SJV due to their high ET under saline irrigation and adequate dry matter production and forage quality." |
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| Language: | English |
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| References: | 45 |
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| See Also: | Other items relating to: Seashore Paspalum - Since 2000 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Benes, S. E., D. D. Adhikari, S. R. Grattan, and R. L. Snyder. 2012. Evapotranspiration potential of forages irrigated with saline-sodic drainage water. Agric. Water Manage. 105:p. 1-7. |
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| DOI: 10.1016/j.agwat.2011.11.019 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0378377411003246
Last checked: 03/28/2014
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2205878a |
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