Bulletin #1080, An Introduction to Using Site-Specific Farming to Manage Field Variability Bulletin #1081, Potato Farmers in Aroostook County, Maine, Should Test for Soil S and Correct as Needed Bulletin #1082, High Phosphorus Levels Build Up in Soils of Aroostook County, Maine: Importance for Potato Growers Bulletin #1083, Potato Farmers in Aroostook County, Maine, Should