When to irrigate? How much water to apply?
NET IRRIGATION REQUIREMENT
NET IRRIGATION REQUIREMENT
GROSS IRRIGATION REQUIREMENT
GROSS IRRIGATION REQUIREMENT
GROSS IRRIGATION REQUIREMENT
CROP EVAPOTRANSPIRATION (ET)
FACTORS AFFECTING EVAPOTRANSPIRATION
FACTORS AFFECTING EVAPOTRANSPIRATION
FACTORS AFFECTING EVAPOTRANSPIRATION
FACTORS AFFECTING EVAPOTRANSPIRATION
REFERENCE CROP EVAPOTRANSPIRATION, ET.
ESTIMATED CROP EVAPOTRANSPIRATION, ET
Determination of Reference Evapotranspiration
Reference Evapotranspiration
DURATION OF DATA REQUIRED
One. PENMAN-MONTEITH METHOD
Mean Saturation Vapor Pressure, es
Mean Saturation Vapor Pressure, es
Mean Saturation Vapor Pressure, es
Mean Saturation Vapor Pressure, es
Mean Saturation Vapor Pressure, es
Mean Saturation Vapor Pressure, es
Slope of Saturation Vapor Curve, four
Slope of Saturation Vapor Curve, four
Slope of Saturation Vapor Pressure Curve, four
Slope of Saturation Vapor Curve, four
Slope of Saturation Vapor Curve, Four
Actual Vapor Pressure, ea
Actual Vapor Pressure, eg
Actual Vapor Pressure, ea
Actual Vapor Pressure, eg.
Actual Vapor Pressure, eg.
Actual Vapor Pressure, ea.
Vapor Pressure Deficit, es minus ea.
Vapor Pressure Deficit, es minus ea.
Latent Heat of Vaporization, A.
Psychrometric Constant, Y.
Psychrometric Constant, Y.
Psychrometric Constant, Y.
Psychrometric Constant, Y.
Extraterrestrial Radiation, R a.
Relative Sunshine Duration, n divided by N.
Solar or Shortwave Radiation, Rs.
Solar or Shortwave Radiation, Rs.
Clear-sky Solar Radiation, R SO.
Relative Shortwave Radiation, Rs divided by Rso.
Albedo (a) and Net Solar Radiation (R ns.
Net Solar Radiation (R ns.
Example Eleven Calculate the net solar radiation if the shortwave radiation is twenty-two point zero one megajoules per square meter per day?
Net Longwave Radiation, R, nl.
Net Longwave Radiation, R, nl
For Extraterrestrial radiation, Ra