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Tim Shaver
Assistant Professor
Nutrient Management Specialist

Nutrient Management Specialist Tim Shaver

Office Location:
Office Address:

Phone:
Fax:
Email:

West Central Research and Extension Center
402 West State Farm Road
North Platte, NE 69101
(308) 696-6714
(308) 696-6780
tshaver2@unl.edu

Extension Program Areas:

  • Nutrient Management
  • Soil and Water Relationships
  • GPS / GIS Applications


Focus Areas of Interest:

  • Precision Nutrient Management
  • Irrigated and Water Limited Cropping System Nutrient Management
  • Management Effects on Soil Physical Properties
  • Remote Sensing


Selected Publications:

  • Shaver, T.M. and D.G. Westfall. 2008. Validity of zinc fertilizer efficiency ratios. Colorado Agriculture Experiment Station (CAES) Technical Bulletin TB08-04.
  • Shaver, T.M., D.G. Westfall, and R. Khosla. 2008. Ground based active remote sensors to determine nitrogen variability in corn. In Agronomy Abstracts (CD-Rom), American Society of Agronomy, 2008 Annual Meetings, Houston, TX.
  • Shaver, T.M., R. Khosla, and D.G. Westfall. 2008. Correlation of normalized difference vegetation indices (NDVI) and crop variables with corn grain yield. In Abstracts, International Conference on Precision Agriculture, 2008 Meeting, Denver, CO.
  • Shaver, T.M., D.G. Westfall, and M. Ronaghi. 2007. Zinc fertilizer solubility and its effects on zinc bioailability over time. Journal of Plant Nutrition, 30:1, 123 — 133.
  • Shaver, T.M., D.G. Westfall, and R. Khosla. 2007. Evaluation of three ground based active remote sensors to assess nitrogen (N) status of corn across production level management zones and environments. In Agronomy Abstracts (CD-Rom), American Society of Agronomy, 2007 Annual Meetings, New Orleans, LA.
  • Shaver, T.M., D.G. Westfall, and R. Khosla. 2007. Comparison of three active remote hand-held NDVI (normalized difference vegetative indices) remote sensors for nitrogen management of corn. p. 373-379. In Precision Agriculture ‘07. ED. J.V. Stafford. Wageningen Academic Publishers, The Netherlands.
  • Shaver, T.M., D.G. Westfall, and J. Khosla. 2007. Using active remote sensors to predict nitrogen status and in-season nitrogen fertilizer management in irrigated corn. Abstr. of 10th Inter. Symp. on Soil and Plant Analysis. June 11-15, 2007. Budapest, Hungary.
  • Shaver, T.M., R. Khosla, and D.G. Westfall. 2006. Utilizing green normalized difference vegetation indices (GNDVI) for production level management zone delineation in irrigated corn. In Abstracts (CD-Rom), 18th World Congress of Soil Science, Philidelphia, PA. USA.
  • Westfall, D.G., G.A. Peterson, F.B. Peairs, L. Sherrod, D. Poss, T. Shaver, K. Larson, D.L. Thompson, L.R. Ahuja, M.D. Koch, and C.B. Walker. 2004. Sustainable dryland agroecosystem management. Colorado Agriculture Experiment Station (CAES) Technical Bulletin TB04-05.
  • Shaver, T.M., G.A. Peterson, and L.A. Sherrod. 2003. Cropping intensification in dryland systems improves soil physical properties: Regression relations. Geoderma 116:149–164.
  • Shaver, T.M., G.A. Peterson, L.R. Ahuja, D.G. Westfall, L.A. Sherrod, and G. Dunn, 2002. Surface soil physical properties after twelve years of dryland no till management. Soil Science Society of America Journal 66, pp. 1296–1303.
  • Khosla, R., K. Fleming, J.A. Delagado, T.M. Shaver, and D.G. Westfall. 2002. Use of site-specific management zones to improve nitrogen management for precision agriculture. J. Soil Water Conserv. 57(6):513–518.

 Education: 

  • B.S., Soil and Crop Sciences, Colorado State University, 1996
  • M.S., Soil and Crop Sciences, Colorado State University, 2000
  • Ph.D., Soil and Crop Sciences, Colorado State University, 2009

 
Links:

West Central Research and Extension Center
Agronomy and Horticulture