John Havlin

Sweeney, D. W., Diaz, D. A. R., Pedreira, B. C., & Havlin, J. L. (2022, February 21). Long-term yield response of corn, wheat, and double-crop soybean to tillage and N placement. AGRONOMY JOURNAL. https://doi.org/10.1002/agj2.20997

Havlin, J. L., Austin, R., Hardy, D., Howard, A., & Heitman, J. L. (2022). Nutrient Management Effects on Wine Grape Tissue Nutrient Content. PLANTS-BASEL, 11(2). https://doi.org/10.3390/plants11020158

Schlegel, A. J., & Havlin, J. L. (2021). Irrigated grain sorghum response to 55 years of nitrogen, phosphorus, and potassium fertilization. AGRONOMY JOURNAL, 113(1), 464–477. https://doi.org/10.1002/agj2.20453

Havlin, J. L., & Schlegel, A. J. (2021). [Review of Review of Phosphite as a Plant Nutrient and Fungicide]. SOIL SYSTEMS, 5(3). https://doi.org/10.3390/soilsystems5030052

Havlin, J., & Heiniger, R. (2020, September). Soil Fertility Management for Better Crop Production. AGRONOMY-BASEL, Vol. 10. https://doi.org/10.3390/agronomy10091349

Dold, C., Heitman, J., Giese, G., Howard, A., Havlin, J., & Sauer, T. (2019). Upscaling Evapotranspiration with Parsimonious Models in a North Carolina Vineyard. Agronomy, 9(3), 152. https://doi.org/10.3390/agronomy9030152

Schlegel, A. J., & Havlin, J. L. (2017). Corn Yield and Grain Nutrient Uptake from 50 Years of Nitrogen and Phosphorus Fertilization. AGRONOMY JOURNAL, 109(1), 335–342. https://doi.org/10.2134/agronj2016.05.0294

Haines, S. A., Gehl, R. J., Havlin, J. L., & Ranney, T. G. (2015). Nitrogen and Phosphorus Fertilizer Effects on Establishment of Giant Miscanthus. BIOENERGY RESEARCH, 8(1), 17–27. https://doi.org/10.1007/s12155-014-9499-4

Holland, S., Heitman, J. L., Howard, A., Sauer, T. J., Giese, W., Ben-Gal, A., … Havlin, J. (2013). Micro-Bowen ratio system for measuring evapotranspiration in a vineyard interrow. AGRICULTURAL AND FOREST METEOROLOGY, 177, 93–100. https://doi.org/10.1016/j.agrformet.2013.04.009

Havlin, J. (2013). Soil fertility and fertilizers: An introduction to nutrient management. Upper Saddle River, N.J.: Pearson.

Havlin, J. L., Hardy, D. H., Gehl, R. J., & Spayd, S. E. (2012). Survey of Nutrient Status in Vitis vinifera Grapes in North Carolina. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 43(1-2), 299–314. https://doi.org/10.1080/00103624.2011.638600

Megonigal, J. P., Stauffer, B., Starrs, S., Pekarik, A., Drohan, P., & Havlin, J. (2010). "Dig It!": How an Exhibit Breathed Life into Soils Education. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 74(3), 706–716. https://doi.org/10.2136/sssaj2009.0409

Drohan, P. J., Havlin, J. L., Megonigal, J. P., & Cheng, H. H. (2010). The "Dig It!" Smithsonian Soils Exhibition: Lessons Learned and Goals for the Future. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 74(3), 697–705. https://doi.org/10.2136/sssaj2009.0017

Havlin, J., Balster, N., Chapman, S., Ferris, D., Thompson, T., & Smith, T. (2010). Trends in Soil Science Education and Employment. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, Vol. 74, pp. 1429–1432. https://doi.org/10.2136/sssaj2010.0143

Havlin, J. L., & Heiniger, R. (2009). A variable-rate decision support tool. Precision Agriculture, 10(4), 356–369. https://doi.org/10.1007/s11119-009-9121-5

Crozier, C. R., Havlin, J. L., Hoyt, G. D., Rideout, J. W., & McDaniel, R. (2009). Three Experimental Systems to Evaluate Phosphorus Supply from Enhanced Granulated Manure Ash. AGRONOMY JOURNAL, 101(4), 880–888. https://doi.org/10.2134/agronj2008.0187x

Harrelson, E. R., Hoyt, G. D., Havlin, J. L., & Monks, D. W. (2008). Effect of planting date and nitrogen fertilization rates on no-till pumpkins. HortScience, 43(3), 857–861.

Robertson, G. P., Allen, V. G., Boody, G., Boose, E. R., Creamer, N. G., Drinkwater, L. E., … Wall, D. H. (2008). Long-term agricultural research: A research, education, and extension imperative. BIOSCIENCE, 58(7), 640–645. https://doi.org/10.1641/B580711

Harrelson, E. R., Hoyt, G. A., Havlin, J. L., & Monks, D. W. (2007). Effect of winter cover crop residue on no-till pumpkin yield. HortScience, 42(7), 1568–1574.

Bond, C. R., Maguire, R. O., & Havlin, J. L. (2006). Change in soluble phosphorus in soils following fertilization is dependent on initial Mehlich-3 phosphorus. JOURNAL OF ENVIRONMENTAL QUALITY, 35(5), 1818–1824. https://doi.org/10.2134/jeq2005.0404

Schlegel, A. J., Grant, C. A., & Havlin, J. L. (2005). Challenging approaches to nitrogen fertilizer recommendations in continuous cropping systems in the Great Plains. AGRONOMY JOURNAL, Vol. 97, pp. 391–398. https://doi.org/10.2134/agronj2005.0391

Havlin, J. L. (2005). Soil fertility and fertilizers: An introduction to nutrient management (7th ed.). Upper Saddle River, NJ: Pearson/Prentice Hall.

Schlegel, A. J., Dhuyvetter, K. C., & Havlin, J. L. (2003). Placement of UAN for dryland winter wheat in the central high plains. AGRONOMY JOURNAL, 95(6), 1532–1541. https://doi.org/10.2134/agronj2003.1532

Schmidt, J. P., Dejoia, A. J., Ferguson, R. B., Taylor, R. K., Young, R. K., & Havlin, J. L. (2002). Corn yield response to nitrogen at multiple in-field locations. Agronomy Journal, 94(4), 798–806. https://doi.org/10.2134/agronj2002.0798

Heiniger, R. W., Havlin, J. L., Crouse, D. A., Kvien, C., & T., K. (2002). Seeing is believing: The role of field days and tours in precision agriculture education. Precision Agriculture, 3(4), 309.

Taylor, R. K., Kluitenberg, G. J., Schrock, A. D., Zhang, N., Schmidt, J. P., & Havlin, J. L. (2001). Using yield monitor data to determine spatial crop production potential. Transactions of the ASAE, 44(6), 1409–1414. https://doi.org/10.13031/2013.7007

Crouse, D. A., Havlin, J. L., McBride, R. G., White, J. G., Heiniger, R., Weisz, R., & Roberson, G. (2000). Precision farming education at NC State University. Proceedings of the 5th International Conference on Precision Agriculture, Bloomington, Minnesota, USA, 16-19 July, 2000, 1.

Austin, R. E., Crouse, D. A., Havlin, J. L., & Hodges, S. C. (2000). The Spatial Information Research Laboratory at North Carolina State University. Proceedings of the 5th International Conference on Precision Agriculture, Bloomington, Minnesota, USA, 16-19 July, 2000, 1.

Havlin, J. L., Beaton, J. D., Tisdale, S. L., & Nelson, W. L. (1999). Soil fertility and fertilizers: An introduction to nutrient management. Medford, NJ: Prentice Hall.

Havlin, J. L., & Schlegel, A. J. (1997). Dryland conservation technologies: Enhancing agricultural profitability and sustainability. Annals of Arid Zone, 36(3), 291–303.

Schlegel, A. J., & Havlin, J. L. (1997). Green fallow for the central Great Plains. AGRONOMY JOURNAL, 89(5), 762–767. https://doi.org/10.2134/agronj1997.00021962008900050009x

Halvorson, A. D., Havlin, J. L., & Schlegel, A. J. (1997). Nutrient management for sustainable dryland farming systems. Annals of Arid Zone, 36(3), 233–254.