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Comparison of Flooded and Sprinkler Irrigated Rice Production
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: 5th National Decennial Irrigation Conference Proceedings, 5-8 December 2010, Phoenix Convention Center, Phoenix, Arizona USA IRR10-9851.(doi:10.13031/2013.35862)
Authors: Earl D Vories, Michael McCarty, W Gene Stevens, Phil L Tacker, Sam A Haidar
Keywords: Irrigation, rice, center pivot irrigation, flood irrigation, water management
Although past problems with sprinkler irrigated rice have precluded widespread adoption, recent developments have led to increased interest. In 2009, McCarty Farms produced a field of center pivot irrigated rice, as well as a field of flood irrigated rice while cooperating in the University of Arkansas Rice Research Verification Program (RRVP). The objective of this report was to compare grain yield and costs between the systems. A total of 589 mm of irrigation water was applied to the RRVP field, while 470 mm was applied to the pivot field. Estimated irrigation costs were $174 ha-1 and $73 ha-1 for the RRVP and pivot fields, respectively, exclusive of ownership and repair and maintenance costs. Flood irrigation required additional steps, such as installing and removing levees. The observed grain yields were similar, with average dry yields of 10.1 and 9.7 Mg ha-1 for the RRVP and pivot-irrigated fields, respectively. The irrigation water use efficiency was 1.7 and 2.1 kg m-3 for the RRVP and pivot irrigated fields, respectively. Total pesticide, fertilizer, and estimated irrigation, costs were $817 ha-1 and $601 ha-1 for the RRVP and pivot fields, respectively. The results suggest that center pivot irrigated rice is a viable production system and additional research is being conducted to provide production recommendations for producers interested in the system.(Download PDF) (Export to EndNotes)