Agro-eco-systems, agronomy and the agronomist
Growth, development and crop productivity : environmental and genetic factor governing crop growth and development.
Aerial environment: radiation, humidity, temperature, wind, rainfall, weather and climate
Soil : physical properties
Water relations: flow of water through a crop, evapotranspiration and its components, evaporation from a drying soil, water available for a crop, water stress.
Water management: estimation and management of water supply, irrigation scheduling.
Soil management: plant nutrition, management of soil fertility, tillage.
Monoculture, mixtures, intercropping
The quality of agricultural products