Nitrogen is available to plants as either ammonium (NH 4 + -N) or nitrate (NO 3 - -N). Animal manures and other organic wastes can be important sources of N for plant growth. The amount of N supplied by manure will vary with the type of livestock, handling, rate applied, and method of application.
Danielle Fishel, who played Topanga on the hit '90s series Boy Meets World, married her long-time boyfriend Tim Belusko in Los Angeles over the weekend. Travel Deals.
George Clooney is a married man! The 53-year-old actor said I do to British-Lebanese barrister Amal Alamuddin, 36, in a private ceremony in Venice, Italy, Clooney's rep told ABC News. The well-known Hollywood bachelor became engaged to Alamuddin in April. The couple first sparked relationship rumors last October when they dined out with friends.