Frost: Difference between revisions

Such measures need to be applied with discretion, because they may do more harm than good; for example, spraying crops with water can cause damage if the plants become overburdened with ice. An effective '''low cost''' method for small crop farms and plant nurseries, exploits the [[Enthalpy of fusion|latent heat of freezing]]. A pulsed irrigation timer<ref name=Nurseries /> delivers water through existing overhead sprinklers at a low volumes to combat frosts down to {{convert|-5|C|F}}.<ref name=Nurseries>{{cite web|title=A practical method of frost protection|url=http://plantsale.com.au/Articles/FrostProtection|accessdate=31 October 2011|deadurl=no|archiveurl=https://web.archive.org/web/20120320075831/http://www.plantsale.com.au/Articles/FrostProtection/|archivedate=20 March 2012|df=}}</ref><ref name=SmallCrops>{{cite web|last=Selders|first=Arthur W.|title=Frost protection with sprinkler irrigation|url=http://www.wvu.edu/~agexten/hortcult/fruits/om101.pdf|publisher=West Virginia university|accessdate=31 October 2011|deadurl=noyes|archiveurl=https://web.archive.org/web/20111114032130/http://www.wvu.edu/~agexten/hortcult/fruits/om101.pdf|archivedate=14 November 2011|df=}}</ref> If the water freezes it giving off its latent heat, preventing the temperature of the foliage from falling much below zero.<ref name=SmallCrops />