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Payero, J.O.; Melvin, S.R.; Irmak, S.; Tarkalson, D.. |
Irrigation water supplies are decreasing in many areas of the US Great Plains, which is requiring many farmers to consider deficit-irrigating corn (Zea mays L.) or growing crops like winter wheat (Triticum aestivum L.) that require less water, but that are less profitable. The objectives of this study were to: (1) quantify the yield response of corn to deficit irrigation, and (2) determine which of several seasonal water variables correlated best to corn yield in a semiarid climate. Eight (T1-T8) and nine (T1-T9) deficit-irrigated treatments (including dryland), were compared in 2003 and 2004 in North Platte, Nebraska. The actual seasonal crop evapotranspiration (ETd) (calculated with procedures in FAO-56) for the different treatments was 37-79% in... |
Tipo: Article |
Palavras-chave: Corn / maize; Mass Import - autoclassified (may be erroneous). |
Ano: 2006 |
URL: http://eprints.nwisrl.ars.usda.gov/56/1/1218.pdf |
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