Michael Wagger

Dr Michael Wagger Professor Soil Management

Dr Michael Wagger
Professor Soil Management

Professor Soil Management

2234 Williams Hall
Campus Box 7620
North Carolina State University
Raleigh, North Carolina 27695-7620

Office Phone: 919.513.1041
Email: michael_wagger@ncsu.edu


Specialty: Soil Management

The overall research focus concerns the long-term consequences of tillage practices and cropping systems on soil chemical, physical, and biological properties and their relationship to crop growth and development. Research efforts have emphasized a multi-disciplinary approach in order to assess some of the inherent soil-plant-water relationships associated with these systems.

Current research areas include nutrient cycling in cover crop based production systems; soil quality indices as influenced by tillage/cropping system; and nutrient dynamics in organic production.



Extension – Bulletins


Research – Refereed Journals

  • G. Soto, P. Luna-Orea, M. G. Wagger, T. J. Smyth, and A. Alvarado. 2005. Foliage residue decomposition and nutrient release in peach palm (Bactris gasipaes Kunth) plantations for heart-of-palm production in Costa Rica. Agron. J. 97:1396-1402.
  • Zhang, W., J. Wu, C. Tu, H. G. Diab, F. J. Louws, J. P. Mueller, N. G. Creamer, M. Bell, M. G. Wagger, and S. Hu. 2005. Responses of soil microbial community structure and diversity to agricultural deintensification. Pedosphere 15:440-447.
  • Njunie, M.N., and M.G. Wagger. 2004. Use of herbaceous legumes for improving soil fertility and crop yield in maize/cassava cropping systems. E. Afr. Agric. For. J. 69(1):49-61.
  • Njunie, M.N., M.G. Wagger, and P. Luna-Orea. 2004. Residue decomposition and nutrient release dynamics from two tropical forage legumes in a Kenyan environment. Agron. J. 96: 1073-1081.
  • Soto, G., P. Luna, M. Wagger, T. Smyth, and A. Alvarado. 2003. Descompsicion de resduos de cosecha y liberacion de nutrimentos en plantaciones de palmito en Costa Rica. Agronimia Costarricense 26(2):43-51.
  • Mueller, J.P., M.E. Barbercheck, M. Bell, C. Brownie, N.G. Creamer, A. Hitt, S. Hu, L. King, H.M. Linker, F.J. Louws, C.W. Raczkowski, D. Susko, and M.G. Wagger. 2002. Development and implementation of a long-term agricultural systems study:Challenges and opportunities. Hort. Tech. 12(3):362-368.
  • Glasener, K. M., M. G. Wagger, C. T. MacKown, and R. J. Volk. 1998. Nitrogen-15 labeling effectiveness of two tropical legumes. Plant and soil 200: 149-156.
  • Wagger, M. G., M. L. Cabrera, and N. N. Ranells. 1998. Nitrogen and carbon cycling in relation to cover crop resource quality. J. Soil and Water Cons. 53(3):214-218.
  • Ranells, N. N., and M.G. Wagger. 1997. Nitrogen-15 recovery and release by rye and crimson clover cover crops. Soil Sci. Soc. Am. J. 61: 943-948.
  • Ranells, N.N., and M.G. Wagger, 1997. Grass-legume bicultures as winter annual cover crops. Agron. J. 89: 659-665.
  • Luna-Orea, P., and M. G. Wagger. 1996. Management of tropical legume cover crops in the Bolivian Amazon to sustain crop yields and soil productivity. Agron. J. 88: 765-776.
  • Luna-Orea, P., M. G. Wagger, and M. L. Gumpertz. 1996. Decomposition and nutrient release dynamics of two tropical legume cover crops. Agron. J. 88:758-764.
  • Ranells, N. N., and M. G. Wagger. 1996. Nitrogen release from grass/legume cover crop monocultures and bicultures. Agron. J. 88:777-782.
  • Vepraskas, M. J., and M. G. Wagger. 1990. Corn root distribution and yield response to subsoiling for Paleudults having different aggregate sizes. Soil Sci. Soc. Am. J. 54:849-854.