Tips for a 'green' lawn.

8 Tips for a Natural Lawn
To achieve a beautiful lawn naturally, follow this advice:
1. Obtain a soil test to get an analysis of what nutrients you need. Check with your local University of Minnesota Extension service or visit Soil Foodweb for information.
2. Grow the right grass. The most common lawn grasses, Kentucky bluegrass and Bermuda grass, need the most water and fertilizer. Species such as perennial ryegrass, fescue, and centipede grass may be better for your region.
3. Water well in the morning so the lawn surface dries during the day. Water deeply and infrequently so grass roots grow deep into the soil.
4. Soil is alive. “Dirt” is what you track into the house, but soil is filled with living organisms. Nurture it with natural amendments to achieve a successful lawn without toxic chemicals.
5. Mow properly. Leaving grass clippings on the lawn provides half its fertilizer needs for the season. Keep your mower blades sharp. Depending on the species, lawns should be cut no lower than 2.5 inches—‚even higher in summer.
6. Avoid synthetic materials. Lab-manufactured fertilizers can burn grasses and soil. Fertilizers and soil amendments should contain mined mineral such as lime or sulfur, or materials that were once living plants or animals.
7. Add compost. Compost contains beneficial microorganisms that interact with organic fertilizers to provide a lush lawn.
8. Think of weeds as messengers. Weeds appear when something is wrong with the soil. If you kill weeds, they’ll return unless you fix the underlying soil problem.
For more information, contact Jackie Froemming, County Extension Educator with University of Minnesota Extension in Crow Wing County, (218) 824-1068, or e-mail froem022@umn.edu.
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fertilizers
Actually, if you live on or near water, you need to use phospherous-free fertilizers—if any at all.
Check out:
http://www.shorelandmanagement.org/s2s/2004/08/02/minnesota-phosphorus-l...
Minnesota Phosphorus Lawn Fertilizer Law - January 1, 2005
The Law: After January 1, 2005, phosphorus fertilizer cannot be used on lawns in Minnesota unless one of the following exceptions is met:
Exceptions: Phosphorus fertilizer can be used on lawns in Minnesota when:
• Establishing a new lawn by seed or sod.
• Soil testing shows need for phosphorus fertilization.
• Fertilizer is applied by golf course staff that have taken state approved training.
• Phosphorus fertilizer was purchased before August 1, 2004 and is used outside of the seven-county metro area.
Minnesota law also requires spilled and over-spread fertilizer, whether containing phosphorus or not, to be cleaned up immediately.
For soil testing information, contact the U of MN Soil Test Lab at 612-625-3101 or visit them at the "Yard and Garden" section on the web.
Look for the middle number! A string of three numbers on a fertilizer bag shows its analysis—the middle number being phosphate (phosphorus) content A "zero in the middle" means phosphorus-free fertilizer.