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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.

Publication Title

Irrigation and Drainage, Sustainable Strategies and Systems

ISBN

978-953-51-2123-7

Publication Date

5-5-2015

Document Type

Contribution to Book

Publisher

Intech

City

Rijeka, Croatia

Keywords

Lysimeter, rice, evaporation, transpiration, deep percolation, total water use, water productivity

Disciplines

Agronomy and Crop Sciences | Soil Science | Water Resource Management

Comments

Published: May 6, 2015 under CC BY 3.0 license. © The Author(s)

Water Balance of Flooded Rice in the Tropics

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