The greenhouse and nursery business has a profound affect on general agriculture and landscape plantings around the world, in addition to fresh fruit, vegetable and flower production.  This is because high density nursery and greenhouse plantings are often replanted on much larger tracts of agricultural or landscape land later, and/or reflect significant revenue sold fresh.  Water is an essential ingredient in plant growth, and nowhere is it more important than in the nursery and greenhouse business where natural rainfall is either non-existent or grossly inadequate.  Drip irrigation technology was developed decades ago and has been adapted in a myriad of ways to assist in achieving high yields, improved quality, and reduced costs, while avoiding the runoff and deep percolation issues associated with other irrigation technologies in the nursery and greenhouse environment. Greenhouse and nursery operators have reaped the benefits of drip irrigation technology in a number of ways.  In field