7/23/2012 10:07 AM
I don't think you are wrong at all, some guys like to make irrigation decision's based on your method. I basically do the same but reconfirm my findings with a moisture meter,the weather forecast, and previous usage records.
With the current drought scenario most of the country is experiencing , using as much information and "gut" feeling is the decision that I'm probably guessing most of us are doing. It is easy to just hit the water button on our computers and walk away, but that isn't responsible water management and could be a fairly easy trap to fall into.
Good luck on your watering decision's.