The Science of Water Loss
Evapotranspiration is the total amount of water lost from agricultural fields through two natural processes: Evaporation and Transpiration.
Evaporation refers to the loss of water from the soil surface, while transpiration refers to the water released from plant leaves during growth.
Together, these processes determine how much water a crop actually uses. Understanding ET helps farmers replace exactly what is lost, ensuring healthy growth without wasting precious resources.
On the home screen, click View Details in the Evapotranspiration Card.
Why ET Matters in Modern Farming
Water is one of the most critical resources in agriculture. Applying too much irrigation can cause nutrient leaching, root diseases, and unnecessary pumping costs. Insufficient irrigation leads to crop stress and yield loss.
Environmental Drivers:
Temperature
Solar Radiation
Wind Speed
Humidity
Daily water usage view for specific crops.
The FAO Penman-Monteith Method
CropSpy utilizes the FAO Penman-Monteith method, the gold standard for agricultural water management. This mathematical model combines air temperature, humidity, wind speed, and solar radiation to estimate precise water requirements.
- ✅ International Standard: Used by agronomists worldwide.
- ✅ Climate-Smart: Adapts to daily weather shifts.
Click on the Crop name to see the breakdown.
Execution & Benefits
By replacing lost water through precise irrigation, farmers can maintain optimal soil moisture. Benefits include:
- 🔹 Better irrigation scheduling
- 🔹 Reduced water wastage
- 🔹 Lower energy/pumping costs
- 🔹 Higher crop productivity
Instead of guessing, farmers rely on scientific calculations based on real-time local weather data collected by CropSpy.
How to Check Your Requirement
Simply select your location and crop. CropSpy does the heavy lifting, calculating the daily ET so you can plan your next irrigation event with confidence.