Water Use by Flooded Rice in Puerto Rico


Evapotranspiration--Puerto Rico
Rice--Puerto Rico

How to Cite

Silva, S., & Vicente-Chandler, J. (1982). Water Use by Flooded Rice in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 66(3), 181-187. https://doi.org/10.46429/jaupr.v66i3.7664


Evapotranspiration with flooded, well-established rice averaged 0.61 cm/day, with a range from 0.31 to 0.84 cm/day. These variations resulted largely from climatic changes since they were closely related to evaporation losses from an open pan. The equation Y = 0.2691 + 0.4696 X (r = 0.97**) describes the relationship between evapotranspiration with rice and open pan evaporation, which averaged 0.55 cm/day during the experiment. Percolation losses in Toa soil (Mollisol) averaged only 0.20 mm/day after the first 2 weeks of flooding.


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