Date: February 12th, 2010
The benefits of quick-release fertilizers are: fast -release and green-up, lower costs, ease of use, and ability to release in colder weather. The drawbacks include: ease of grass burn, more applications needed per season (lasts a couple months), greater need for watering, and the tendency to leach (dissolve or pass) in sandy soils.
As for slow-releasing fertilizers, some benefits include: long-lasting effectiveness (lasts 3-6 months), a decreased likelihood of burning your lawn, relative ease of use, fewer applications needed per year, and the reduced chance of the fertilizer leaching (dissolving or passing) through the soil. The drawbacks of using this type of fertilizer is that it releases best in warm weather, and the effects tend to be slow or delayed depending on watering conditions.
Liquid fertilizers tend to be quickly absorbed and fast-acting. Because of this rapid absorption rate, liquid fertilizers need to be applied every two to three weeks. The fertilizer is combined with water and applied by means of a garden hose attachment.
A benefit is ease of use; if you can work a hose, you can liquid fertilize your lawn. Also, if spread evenly, you can reduce the risk of burning your lawn. With liquid, nutrients are immediately available to the roots, which provides the fastest response to fertilizing. Liquid fertilizer also acts as a fertilizer and herbicide combination for weed control.
The biggest drawback of liquid fertilization is the frequency of application. The fertilizer lasts short-term due to its immediate effectiveness.
If you have any further questions regarding fertilizers, email me at AskMax@CountryMax.com, or visit your local CountryMax store today!
Additional Resources: http://www.plant-care.com/lawn-fertilizing.html, www.lawnfertilizers.com, http://www.lowes.com/lowes/lkn?action=howTo&p=LawnGarden/FertilizingYourLawn.html#7, http://www.allaboutlawns.com/lawn-maintenance-care/fertilizing/what-kind-of-fertilizer-should-i-use.php