No date on item; authors' manuscript. / Experiments were conducted in southern Arizona to investigate the effects of irrigation with pump water and a pump water-wastewater
mixture on barley (Hordium vulgare L.) growth, grain yield, and grain quality; soil properties; and irrigation water quality. In 1974 and 1975, on small plot research, barley irrigated with a 50:50 mixture of pump water and wastewater significantly exceeded barley irrigated with pump water alone in plant height, number of heads per unit area, number of seeds per head, seed weight, grain yield, and straw yield. In large field studies conducted from 1970 through 1977, barley irrigated with the mixture had taller plants, more lodging, lower grain volume-weights and higher grain yields than barley irrigated with pump water alone. Soils irrigated with both types of irrigation water had similar pH. Soluble salts (ECx103), exchangeable sodium percentage, nitrate-nitrogen, and extractable phosphorus were significantly higher in soils irrigated with the pump water-wastewater mixture than in soils irrigated with pump water. Water quality analyses showed that the pump water-wastewater mixture had lower total soluble salts, lower nitrate-nitrogen, and higher phosphorus levels than pump water alone.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/314419 |
| Date | 21 March 2014 |
| Creators | Day, A. D., McFadyen, J. A., Tucker, T. C., Cluff, C. B. |
| Contributors | Department of Plant Sciences, University of Arizona, Department of Plant Sciences, University of Arizona, Department of Soils, Water, and Engineering, University of Arizona, Water Resources Research Center, University of Arizona |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Source | Water Resources Research Center. The University of Arizona. |
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