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Department of Agriculture and Food, WA staff member authored "Water Balance of Flooded Rice in the Tropics" in the publication Irrigation and Drainage - Sustainable Strategies and Systems’, edited by Muhammad Salik Javaid, published by INTECH, May 2015
Chapter Summary: Excess groundwater recharge rates under irrigated agriculture may lead to problems such as rising watertable, waterlogging and salinity. In irrigated areas, growers may need to manage this water and hence, understanding what leakage is attributed to what crops will become more important. In this study, evaporation, transpiration, and deep percolation losses were estimated for ponded rice culture, using a set of three lysimeters and lockup bay tests. The average deep percolation losses were estimated to be less than 0.97 mm/day or approximately 1 ML/ha for the crop cycle. At this rate, deep percolation under ponded rice culture in Cununurra clay soils is within accepted leakage rates and the rates should not unduly affect growers or environmental managers in terms of rising groundwater levels, waterlogging and salinity.
Irrigation and Drainage, Sustainable Strategies and Systems
Contribution to Book
Lysimeter, rice, evaporation, transpiration, deep percolation, total water use, water productivity
Agronomy and Crop Sciences | Soil Science | Water Resource Management
Siva Sivapalan (2015). Water Balance of Flooded Rice in the Tropics, Irrigation and Drainage - Sustainable Strategies and Systems, Dr. Muhammad Salik Javaid (Ed.), ISBN: 978-953-51-2123-7, InTech, DOI: 10.5772/59043. Available from: http://www.intechopen.com/books/irrigation-and-drainage-sustainable-strategies-and-systems/water-balance-of-flooded-rice-in-the-tropics
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