Agricultural Foundations

Engineering that feeds the world. The scope of agricultural engineering, soil mechanics and classification, and how soil, water and plants interact.

• Introduction to Agricultural Engineering — Engineering that feeds the world. Learn what agricultural engineers do across soil and water, farm power and machinery, post-harvest and food processing, farm structures and renewable energy, and digital/precision agriculture; the challenges of food security, water scarcity, small farms, climate change and sustainability; key metrics like yield, water productivity and input-use efficiency — with Python for production, water use and water productivity.
• Soil Mechanics — Soil is a mix of solid grains, water and air. Learn phase relationships (void ratio, porosity, water content, saturation, unit weights), effective stress, permeability and Darcy's law, compaction, and Mohr–Coulomb shear strength.
• Soil Classification — Classification groups soils by behaviour. Learn grain-size analysis (sieve and hydrometer), uniformity and curvature coefficients, Atterberg limits (LL, PL, PI), the plasticity chart and A-line, and USCS / IS 1498 group symbols.
• Soil–Water–Plant Relationships — Where crops get their water. Learn soil texture and structure, bulk density and porosity, gravimetric and volumetric moisture, soil water potential and the retention curve, saturation, field capacity, permanent wilting point, available water and management allowed depletion, infiltration and hydraulic conductivity, root zones, evapotranspiration basics, soil salinity and measuring soil moisture (gravimetric, tensiometer, TDR/capacitance sensors) — with Python for available water and irrigation interval.