<http://schema.org/description>
"In dry weather like this it is important to irrigate sufficiently if you can. Vegetable crops need an inch to an inch and a half of water per week. So how much is an inch of water? One acre inch of water is 27,154 gallons!"^^<http://www.w3.org/2001/XMLSchema#string>
<http://extension.psu.edu/business/start-farming/news/2012/are-you-watering-enough>