RESEARCH NEWS
Turfgrass Nutrition and
Winterkill Research By Dr. Kevin W. Frank, Jackie Guevara, and Eric Galbraith
Evaluating the effects of soil test philosophies recommendations on creeping bentgrass and annual bluegrass
T
his research is the Masters thesis of Jackie Guevara. The research evaluates two methods of soil test interpretation and fertilizer recommendations, Sufficiency Level of Available Nutrients (SLAN) and Minimum Levels for Sustainable Nutrition (MLSN). SLAN is an established method for determining fertilizer recommendations based on soil test results. MLSN is a more recent method for determining fertilizer recommendations and when compared to SLAN generally recommends lower application rates of phosphorus and potassium.
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