Jury, W.A. and Frenkel, H. and Devitt, D. and Stolzy, L.H. (1978) Transient changes in the soil-water system from irrigation with saline water: II. Analysis of experimental data. Soil Science Society of America Journal, 42 (4). pp. 585-590.
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Abstract
Twenty-three lysimeters containing four soil types with alternate wheat (Triticum aestivum) and sorghum (Sorghum vulgare) crops were irrigated with three synthesized levels (2.2, 3.9, 7.1 mmho/cm) of irrigation water. All methods of determining salt balance showed the order of 50% salt precipitation over the first 500 days of the experiment, approximately two times the expected amount when root zone salt concentrations have reached steady state. Release of Ca2+ ions from exchange sites and subsequent enhanced gypsum and CaCO3 precipitation was assumed to be responsible for the difference between transient and steady-state behavior. The drainage composition of a lysimeter which had moved one pore volume through the root zone showed that only Cl- was approaching a steady-state value. Exchange effects and enhanced precipitation were assumed to be buffering the concentration of the other ions. Water uptake in all lysimeters is occurring primarily in the top 20 cm, a consequence of high irrigation water salinity and daily irrigation
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Soil Physics, University of California, Riverside, CA 92521, USA |
| Subjects: | Soil Science and Microbiology > Soil Sciences |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 19 Dec 2012 05:54 |
| Last Modified: | 19 Dec 2012 05:54 |
| Official URL: | http://dx.doi.org/10.2136/sssaj1978.03615995004200... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9158 |
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