An evaluation and comparison of drip and conventional furrow irrigation methods on maize |
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| Authors: | Houshang Ghamarnia Mohammad Amin Parandyn Issa Arji Vahid Rezvani |
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| Institution: | 1. Department of Irrigation and Water Resources Engineering , Razi University , Kermanshah , Iran hghamarnia@razi.ac.ir;3. Department of Irrigation and Water Resources Engineering , Razi University , Kermanshah , Iran;4. Kermanshah Agricultural and Natural Resources Research Center , Kermanshah , Iran;5. Department of Irrigation and Water Resource Engineering , Kurdistan University , Sanandaj , Iran |
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| Abstract: | A field study was conducted over two years on maize at Islam Abad Research Station at 34°7′42′′N and 46°27′23′′E and elevation of 1348 m a.s.l in Kermanshah Province, western Iran in order to compare the effects of different irrigation methods and treatments on irrigation water use efficiency, crop yield, yield response factor, pan and seasonal crop coefficients, and other maize parameters. The experiment was a complete randomized block design with three replicates. During the study, irrigation water was applied at 40, 60, 80 and 100% of the maize seasonal water requirement for different surface drip tape (SDT) treatments, and 100% only for conventional furrow irrigation treatments with and without soil and water monitoring. The results showed that by using the above-mentioned different drip tape and surface treatments with soil and water monitoring, maize seasonal irrigation water use savings of 81, 71, 61, 52 and 36% were achieved compared with local conventional furrow irrigation without any soil, water and root monitoring, respectively. The yield response factor (K y), seasonal crop (K c) and pan coefficient (K p) for maize were 0.80, 0.76 and 0.97, respectively. |
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| Keywords: | maize irrigation water use efficiency surface drip tape |
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