Nitrogen is one of many important ingredients in healthy soil. Tired of trying to figure out how much nitrogen you have in your soil to grow your organic crops? We'll use CERES-N, a new model that determines nitrogen availability in soil. The model has been adapted for organic growers in Georgia by University of Georgia scientists and is now available on the web. We'll show you how you use this model, depending on whether you're using organic matter, cover crops, poultry litter, compost, or any combination of these inputs as a nitrogen source. Presented by Dr. Peter Hartel, Lisa Woodruff, and Miguel Cabrera of the University of Georgia

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