Agronopy package

Crop

Phenology

agronopy.crop.phenology.growing_degree_day(tmin, tmax, base_min, base_max)[source]

Growing degree days (GDD).

GDD, also called growing degree units (GDUs), are a heuristic tool in phenology and are a measure of heat accumulation used by agricultural scientist and farmers to predict plant growth stage.

Parameters:
  • tmin – minimum temperature of the day (°C)
  • tmax – maximun temperature of the day (°C)
  • base_min – base temperature (°C)
  • base_max – maximum base temperature (°C)
Returns:

Growing degree days (°C)

Grain

agronopy.crop.grain.modified_henderson_moisture(t, rh, a, b, c)[source]

Equilibrium Moisture Equation Constants.

Empirical equilibrium moisture content equation: modified Henderson equation. This equation can be used to calculate equilibrium moisture content or equilibrium relative humidity with the constants below for typical products.

agronopy.crop.grain.modified_henderson_relative_humidity(t, m, a, b, c)[source]

Equilibrium Moisture Equation Constants.

Empirical equilibrium moisture content equations are the modified Henderson equation and the Chung-Pfost equation. These equations can be used to calculate equilibrium moisture content or equilibrium relative humidity with the constants below for typical products.