Wednesday, 9 November 2005
14

Evaluation of Water and Nutrient Management Practices for Minimizing N-Losses from Commercial Strawberry Production in Florida.

Craig Stanley and Alicia Whidden. University of Florida, Gulf Coast Research and Education Center, 14625 CR 672, Wimauma, FL 33598

A research project was initiated to evaluate the effectiveness of water and nutrient management practices for strawberry production under a range of soil types and commercial grower management levels. Twenty sampling sites (four leachate-collection wick-samplers/site) on eleven commercial grower locations were used to determine water and nutrient movement below the rooting zone of microirrigated commercial strawberry production. Samples were collected from twelve different soil types. Each cooperator provided information on individual cultural and management practices used. Total collected leachate was analyzed for nitrate-N concentrations and total N losses were determined. The results were analyzed with respect to management intensity and soil type. First year results indicate that, in all cases, participating grower management practices are in compliance with mandated total maximum daily load (TMDL) regulations. Since all soil types used in the study had >90% sand, management practices had a greater affect on N losses than soil type. The ultimate goal of the project is assess the level of BMP use, demonstrate effectiveness, and encourage grower adoption of water and nutrient management practices that will reduce the potential for contamination to shallow groundwater, surface runoff and surface water bodies.

Handout (.pdf format, 109.0 kb)

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