Includes soil and land use charts and maps, precision ag, manure nutrient management, crop management database and weed management. Series A nice list of publications on agronomy topics. Includes drought stress, realistic yield goals, replant decisions, pastures, frost damage, diagnosing problems, hay quality and more. From the University of Delaware Cooperative Extension. Agronomy Gleanings Read compilations of articles for the past three years.
Topics cover a wide range, including pest damage, weed control, row spacing, herbicides, etc.
This site from Purdue has extensive documents of interest to agronomists. Topics include conservation tillage, the national corn handbook, weeds, and much more. Documents are available in html format. Agronomy Publication Listing A nice list of publication on agronomy. Includes fertilizers, soils, seed, cotton, insects, and other topics.