I have some shrubs that are not getting enough water. They are currently scheduled to water again Nov 25. I watered them by hand to revive them and gave them a manual cycle as well. I went into the setup and thought changing crop coefficient would allow me to increase the frequency of watering so it would water before Nov 25. After experimenting, I found a crop coefficient of 0.92 or lower results in next watering Nov 25, but changing crop coefficient to 0.93 makes the next watering day Nov 14. That is a huge jump in days for a minimum change. Why does it change so much?
Here’s a sheet I put together to help me figure out what each of the parameters does for watering. I don’t know if it’s correct. It would be nice to get feedback on this and maybe some additional columns.
What happens when you increase:
Range Run time Frequency Total water
Soil AWC Increases Reduces Same
Slope Divides Repeats Same
Sun (~shade) 0 100 — Increases More
heads Reduces — Same
Area 0? ?? — — More
Avail water 0? ?? Reduces — Same
crop Coefficient 0? ?? — Increases More
Root Depth 0 ?? Extends Reduces Same
Allowd Depletion0 100 Extends Reduces Same
Efficiency 0 100 Reduces — Less
Sorry, this is lined up nicely in the draft, but not when I post it.