Proceedings
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1. Effects of Soil Test, Tillage, and Manure and Fertilizer Application Method on Phosphorus RunoffLoss of phosphorus from agricultural lands into surface waters is of growing environmental concein. Phosphorus transported by surface runoff often ends up in streams and lakes and accelerates eutrophication, which affects the ability to use the water for drinking, fishing. recreation. etc (Foy and Withers, 1995). The niajor mechanisms by which agriculture contributes phosphorus to surface water is through runoff and erosion (Sharpley et al., 1994). Controlling run~ff and erosion from agricultural... |
2. The Science Behind NutrientStarNutrientStar is a science-based assessment and education program that is focused on products and tools that are marketed to increase nitrogen use efficiency. The program was initiated about three years ago by the Environmental Defense Fund with a primary focus on corn production in the Mississippi River Basin. NutrientStar operates with support from a panel of ten soil scientists plus administrative consultant staff. Panel activities include developing recommended protocols... J. Schepers |