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chemigation
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Chemigation valve — A chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals used during chemigation, the application of chemicals such as fertilizers and pesticides through irrigation water. Most chemigation valves consist… … Wikipedia
chemigation — Delivering chemicals to plants through irrigation water … Combined glossary of agriculture
Fertigation — is the application of fertilizers, soil amendments, or other water soluble products through an irrigation system. Chemigation, a related and sometimes interchangeable term, is the application of chemicals through an irrigation system. Chemigation … Wikipedia
Drip irrigation — A dripper Drip irrigation, also known as trickle irrigation or microirrigation or localized irrigation , is an irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil… … Wikipedia
Herbicide — Weeds killed with herbicide Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants.[1] Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by… … Wikipedia
Backflow prevention device — See also: Backflow (plumbing) In this situation, dirty water from the hillside pool will back siphon or back flow down the hosepipe and into the clean water tank. To prevent this from happening, the house s external tap should be fitted with a… … Wikipedia
Double check valve — A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is also a valve used in air brake systems on heavy trucks. Usage in Water Supply: In the case of usage… … Wikipedia
Air gap (plumbing) — An air gap, as it relates to the plumbing trade, is the unobstructed vertical space between the water outlet and the flood level of a fixture.A simple example is the space between a wall mounted faucet and the sink rim (this space is the air gap) … Wikipedia
Hydrostatic loop — A hydrostatic loop, though not often used in plumbing practice, is an arrangement of pipes formed into a vertical loop to prevent backflow of water within the plumbing potable water system. Since a siphon has a maximum height that it can work… … Wikipedia
Atmospheric vacuum breaker — An Atmospheric Vacuum Breaker (AVB) is a backflow prevention device used in plumbing to prevent backflow of non potable liquids into the drinking water system. It is usually constructed of brass and resembles a 90 degree elbow with a hood on its… … Wikipedia
