HORT 2303 Lecture 8: Irrigation
Document Summary
Lecture 8: irrigation - 3rd primary cultural management. Movement of water: 1. absorption of nutrients (movement of plant nutrients must be in solution for plant uptake), 2. maintenance of turgor (prevents wilt), 3. cooling (effect from water). Anything that interferes with water movement has serious consequences. Transpiration = absorption, transport and release of water. Rh = r-amount of moisture relative to temperature (temp goes up, can hold. Factors affecting transpiration: air temperature (drives more transpiration) (temp goes up, rh goes down) more, humidity (up - less trans. , wind (more - trans, soil moisture content water) A plastic or brass valve must be in each zone and controls pressure to the heads. Gradient pressure pulls water through roots and cools leaf surface. The irrigation system is the backbone of any turf facility and usually the most costly aspect of installing turf. The irrigation system is the most costly aspect of turf. 3. loop system is how water gets to heads.
