Delaying permanent water on drill sown rice

Summary

Delayed permanent water has proven to be a successful alternative water management practice for rice growing that provides considerable water savings and significant financial benefit.

The rice crop is sown and initially managed the same as a conventional drill sown crop but permanent water is not applied until late-tillering. This results in approximately 40 days less time the crop is growing in ponded water than for conventional drill sowing and 75 days less than aerial sowing.

Four years of research on two soil types have proven delayed permanent water to be a viable management option for drill sown rice.

Topics include:

  • water savings
  • financial benefits
  • irragation layout and sowing
  • irrigation frequency
  • when to apply permanent water
  • nitrogen management
  • weed control



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Primefact 1238 Third Edition

Published: Jun 2018