1. Definitions and Philosophies of Organic Farming 2. Soil Fertility and Plant Nutrition 3. Requirements of Plants for Soil-Derived Nutrients 4. Liming 5. Management of Farm Manures 6. Composting 7. Management of Green Manures 8. Mulches 9. Tillage 10. Weed Control 11. Insect Control 12. Plant Diseases 13. Companion Planting 14. Storage of Produce 15. Hydroponics
Allen V. Barker is a Professor in The Stockbridge School of Agriculture at the University of Massachusetts, Amherst. He has over 55 years of experience in teaching and research in organic and conventional agriculture and has interests in soil fertility and plant nutrition. He was raised on a crop and livestock farm in southern Illinois, near where his family has farmed since 1800. He was graduated in an Agricultural Science major at the University of Illinois, Urbana-Champaign, and received master’s and doctoral degrees from Cornell University. He regularly teaches courses in organic farming, soil fertility, plant nutrition, and organic farming seminars at the University of Massachusetts. He is a retired farmer.