Agriculture Land Drainage

This document discusses different types of agricultural land drainage. It describes surface drainage, subsurface drainage, and bio drainage. Surface drainage removes excess water from the soil surface and includes random drain systems, parallel field drain systems, parallel open ditch systems, and bedding systems. Subsurface drainage removes water already in the soil profile through deep open drains or pipe drainage systems. Bio drainage uses plants like eucalyptus to aid drainage. The document outlines advantages of land drainage such as making soil healthier, preventing freezing, and enhancing crop growth.