Irrigation Advisory | Water Balance

Our Plants, Our Complex Biotic Communities...paying dailey dividends
 irrespective of property lines


“Monitoring is the environmental counterpart to financial accounting and reporting. It is logically part of the ordinary cost of doing business.” – Kai Lee

Best practices

  • IN THE WORDS OF BILL DERRYBERRY, IRRIGATION DESIGNER EXTRAORDINAIRE: "ET is promoted only because it is easily and theoretically, calculable, not because it is accurate. Therefore, . . . . the only responsible way to manage is to monitor!  Thence the moisture sensor, in adequate quantities, sagaciously placed! "
  • The old adage is so true: “You can’t manage what you don't know" Irrigation system water distribution non-uniformity is the vital statistic all irrigation water takers need, on-farm, on-home or park.
  • After establishing reasonable water distribution uniformity, irrigation timing and frequency are emphasized.
  • Rootzone monitoring of moisture and salinity is at the heart of adaptive management.  The analysis is eye-opening!  To be beneficial and economically feasible in short-term and more so in the long-term.
  • Improving distribution uniformity means soil moisture monitoring is more applicable to the similar landscape zones, or blocks.
  • Monitoring uses evapotranspiration estimates from state climate monitoring stations, but refines the estimate to your field.  Feedback from sensors is used to correct the "ET Model's Estimate."
  • The "Wetted Area" is not used to calculate application rate.  Plant spacing (length X width) and canopy coverage, relative to gallons applied per week within the spacing's area, define application depths we define and prescribe and how we recommend producers to do their accounting.



  • Fortunately, technologies are improving, and costs are dropping.  Major irrigation system renovation and enhancement such as monitoring systems, with their installation and acquisition perhaps should be amortized over 5-7 years, but your tax adviser should make this determination. 
  • If the urban site’s or the farm’s soils are uniform in terms of depth by soil types, topography, and climatic exposure, only a few monitoring sites will be required.
  • Uncertainty is examined by the variable nature and properties of the site, relative to the number of monitoring sites. 
  • Software Water Balance has used and might recommend has never been a major expense.