PURDUE NUTRIENT RECOMMENDATION PUBLICATIONS Complete nutrient recommendations Corn and Soybean Field Guide (2013 version is out of stock; 2014 version expected in January) https://mdc.itap.purdue.edu/item.asp?Item_Number=ID-179#.Uqs8QKy9KZY Phosphorus and Potassium AY-9-32. Tri-state Fertilizer Recommendations (Vitosh, Johnson, Mengel, 1995) Note: Current only for P and K, not N -- See below for current N recommendations. http://www.extension.purdue.edu/extmedia/AY/AY-9-32.pdf AY-281. Soil Sampling for P, K, and Lime Recommendations (Mengel and Hawkins, 1994) http://www.extension.purdue.edu/extmedia/AY/AY-281.pdf AY-277: Calculating Manure and Manure Nutrient Application Rates (Joern and Brichford, 1993) http://www.extension.purdue.edu/extmedia/AY/AY-277.html Nitrogen Nitrogen Management Guidelines for Corn in Indiana (Camberato, Nielsen, & Joern, 2013) http://www.agry.purdue.edu/ext/corn/news/timeless/NitrogenMgmt.pdf Corn Stalk Nitrate – Research Update, 2013. (Camberato) http://www.agry.purdue.edu/ext/soilfertility/CornStalkNitrate.pdf Soil Fertility Update (Camberato) July 2, 2013: Nitrogen Loss 2013. http://www.agry.purdue.edu/ext/soilfertility/NitrogenLoss2013.pdf April 2013: Plentiful Winter and Spring Precipitation – Nitrogen Carryover Unlikely for Most of Indiana. http://www.agry.purdue.edu/ext/soilfertility/SpringNitrogen.pdf [Web site] Corn Nitrogen Rate Calculator: Finding the Maximum Return To N and Most Profitable N Rate. A Regional (Corn Belt) Approach to Nitrogen Rate Guidelines. (Current 2013) http://extension.agron.iastate.edu/soilfertility/nrate.aspx AY-335-W A Historical Perspective on Nitrogen Fertilizer Rate Recommendations for Corn in Indiana (1953-2011) (Camberato, 2012) http://www.extension.purdue.edu/extmedia/AY/AY-335-W.pdf AY-314-W: The Presidedress Soil Nitrate Test for Improving N Management in Corn (Brouder, Mengel, 2003) http://www.agry.purdue.edu/ext/pubs/AY-314-W.pdf AY-322. Cornstalk Testing to Evaluation the Nitrogen Status of Mature Corn: Nitrogen Management Assurance (Brouder, 2003) http://www.agry.purdue.edu/ext/pubs/AY-322-W.pdf AY-317. Determining Nitrogen Fertilizer Sidedress Application Needs in Corn Using a Chlorophyll Meter. (Brouder and Mengel, 2003). http://www.agry.purdue.edu/ext/pubs/AY-317-W.pdf AY-314-W: The Presidedress Soil Nitrate Test for Improving N Management in Corn (Brouder, Mengel, 2003) http://www.agry.purdue.edu/ext/pubs/AY-314-W.pdf AY-322. Cornstalk Testing to Evaluation the Nitrogen Status of Mature Corn: Nitrogen Management Assurance (Brouder, 2003) http://www.agry.purdue.edu/ext/pubs/AY-322-W.pdf AY-317. Determining Nitrogen Fertilizer Sidedress Application Needs in Corn Using a Chlorophyll Meter. (Brouder and Mengel, 2003). http://www.agry.purdue.edu/ext/pubs/AY-317-W.pdf Certification of Nutrient Applicators PPP-14. Agricultural Fertilizer Applicator Training Manual ($30 at https://mdc.itap.purdue.edu/item.asp?Item_Number=PPP-14#.UpS9E7XFXTo). Author: Cheri Janssen