// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
agri.plant-water-deficit Calculator
Predicts how many days until irrigation is needed by tracking the daily gap between crop water demand and effective rainfall against current soil water reserves. Gives growers a forward-looking irrigation schedule rather than reacting to visible stress.
Inputs
Eto Mm Day
Reference formula or conversion factor shown for context.
Kc Crop
Reference formula or conversion factor shown for context.
Effective Rain Mm
Reference formula or conversion factor shown for context.
Soil Water Deficit Mm
Rate of charge flow (A). I = V/R. Above ~100 mA through the body can be lethal. Fuses protect against overcurrent.
Results
crop ET (mm/day)
Reference formula or conversion factor shown for context.
daily water deficit (mm/day)
The value at the specified point or condition.
days until irrigation needed
IRR (internal rate of return) -- the annualised return rate at which net present value equals zero. If IRR exceeds the hurdle rate, the investment adds value.
weekly irrigation needed (mm)
IRR (internal rate of return) -- the annualised return rate at which net present value equals zero. If IRR exceeds the hurdle rate, the investment adds value.
ETc = Kc × ET₀
Reference formula or conversion factor shown for context.
Kc examples
Reference formula or conversion factor shown for context.