Crop Water Stress Index (CWSI)

Calculate the Crop Water Stress Index (CWSI) using canopy and air temperature differential to detect plant water stress and optimize irrigation timing.

 
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Physical Constants Reference
ConstantSymbolValue
Speed of lightc2.99792458×10⁸
Planck's constanth6.62607015×10⁻³‴
Boltzmann constant1.380649×10⁻²³
Avogadro's numberNₐ6.02214076×10²³
Gravitational constantG6.6743×10⁻¹¹
Gas constantR8.31446
Elementary chargee1.602176634×10⁻¹⁹
Electron massmₑ9.1093837015×10⁻³¹
Proton massmₚ1.67262192369×10⁻²⁷
Fine-structure constantα7.2973525693×10⁻³
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How It Works

Calculate the Crop Water Stress Index (CWSI) using canopy and air temperature differential to detect plant water stress and optimize irrigation timing

Each component has a specific meaning:

  • Canopy — The canopy recorded for the patient or scenario being assessed.
  • Air temperature differential — The air temperature differential recorded for the patient or scenario being assessed.

Note: Interpret the crop water stress index result against the clinical thresholds and context described above.

How to Use

Enter the canopy, air temperature differential for the patient or scenario you are assessing. Calculate the Crop Water Stress Index (CWSI) using canopy and air temperature differential to detect plant water stress and optimize irrigation timing. Use the crop water stress index result to inform your clinical assessment.

Frequently Asked Questions