Charles Shapiro Emeritus

Professor of Agronomy and Horticulture Emeritus

Soil Scientist - Crop Nutrition

 
Link to Agronomy web page:

http//agronomy.unl.edu/shapiro

 

University of Nebraska Haskell Agricultural Laboratory
57905 866 Road
Concord, NE 68728
Email: CSHAPIRO1@UNL.EDU
Phone: (402) 584-3803
Fax:      (402) 584-3859

Education:

  • Ph.D. University of Nebraska-Lincoln, 1982
  • M.S.  University of Nebraska-Lincoln, 1978
  • B.S.   Cornell University, 1974

ResearchGate Profile

Soil Fertility/Management UNL webpage

Research/Extension Area of Emphasis:

Dr. Shapiro emphasizes crop nutrient management in research and public education programs. Managing nutrients for crop production effectively increases profit for the producer and reduces the potential for off-site contamination. Recommended practices are derived from research conducted at the Haskell Ag. Lab and on cooperating farmer fields. Nutrient management takes into account the native fertility of the soil resource, credits from many sources and efficient application methods.

Nutrient Management EC155
Revised in 2014

 

Tools

Corn Spreadsheet

Manure Value Spreadsheet

NebGuides, NebFacts, and Extension Circulars

Lime

EC 179 Managing livestock manure to protect environmental quality

Use of Fly Ash as a Liming material of Corn and Soybean Production on an Acidic Sandy Soil

Current Research:

Corn and Nitrogen:

Abstract: Using a Chlorophyll Meter to Manage Nitrogen Applications to Corn with High Nitrate Irrigation Water

Corn response to nitrogen rate, row spacing and plant density in the upper Midwest

Does inorganic nitrogen fertilization improve soil aggregation? Insights from two long-term tillage experiments

N use efficiency for three cropping systems in Nebraska

Nitrogen Response and Economics for Irrigated Corn in Nebraska

Tarkalson, D.D.,  J.O. Payero, S.M. Ensley, and C.A. Shapiro. 2006. Nitrate accumulation and movement under deficit irrigation in soil receiving cattle manure and commercial fertilizer. Ag. Water Management. 85:201-210.

Effect of nitrogen addition and weed interference on soil nitrogen and corn nitrogen nutrition

Influence of nitrogen and duration of weed interference on corn growth and development

Nitrogen application influences the critical period for weed control in corn

Response of different corn populations to fertigated nitrogen and certain micronutrients in sandy soil

Blanco Canqui, H., C. Shapiro, C. Wortmann, R. Drijber, M. Mamo, T. Shaver, R. Ferguson. 2013. Soil organic carbon: The value to soil properties. J. of Soil and Water Cons, 68(5), 129A-134A.

Manure

Manure Management:

Effect of Swine Lagoon Water Application Rate and Alfalfa Harvest Frequency on Dry Matter Production and N Harvest

Effects of manure application on soil aggregation

Managing Swine Dietary Phosphorus to Meet Manure Goals (2002 Nebraska Swine Report EC 02-219-A)

Alwadaey, A. M., C. S. Wortmann, T. G. Franti, C. A. Shapiro, and D. E. Eisenhauer. 2010. Manure application setback effect on phosphorus and sediment in runoff. J. Soi. Sci. Environ. Manage. 1:95-98.

Manure Use Planning: An Evaluation of a Producer Training Program

Research Nebraska: Finding Safe Levels, times for applying manure to growing crops, Fall/Winter 2004

Salt Thresholds for Liquid Manure Applied to Corn and Soybean

Mamo, Martha, Daniel Ginting, William Zanner, Dennis McCallister, Roger Renken, Charles Shapiro, Bahman Eghball. 2005.  Stratification of Soil Phosphorus and Increased Potential for Runoff Loss after Long-term Manure Application.  Journal of Soil and Water Conservation. 60(5):243-250

Fate of Growth Promotant Research:

Current knowledge on the environmental fate, potential impact and management of growth promoting steroids used in the US beef cattle industry

Effect of Composting on the Fate of Steroids in Beef Cattle Manure

Bartelt-Hunt, S. L., D. D. Snow, W. L. Kranz, T. L. Mader, C. A. Shapiro, S. J. van Donk, D. P. Shelton, D. D. Tarkalson, and T. C. Zhang. 2012. Effect of growth promotants on the occurrence of steroid hormones on feedlot soils and in runoff from beef cattle feeding operations. Environ. Sci. Technol. 46(3):1352-1360.

Zhang, Tian, Rui Ma, Shannon L. Bartelt-Hunt, Yong Qi, M. S.; William L. Kranz, Daniel D. Snow, Terry L. Mader, Charles A. Shapiro, David P. Shelton, Simon J. van Donk, David D. Tarkalson, Steve Ensley, 2015. Influence of Soil Properties and Test Conditions on Sorption and Desorption of Testosterone. Journal of Environmental Engineering. In Press.

S. J. van Donk, S. Biswas, W. L. Kranz, D. D. Snow, S. L. Bartelt-Hunt, T. L. Mader, C. A. Shapiro, D. P. Shelton, D. D. Tarkalson, T. C. Zhang, and S. Ensley. 2013. Transport of steroid hormones in the vadose zone after land application of manure. Trans. of the ASABE 54(4):1327-1338.

Use of a surrogate to evaluate the impact of tillage on the transport of steroid hormones from manure-amended agricultural fields

Old Research

Free Slide Rule
Free Slide Rule Offers Quick Calculation for Nitrogen Rates. News release describing the slide rule; three options for ordering one; and photos of the front and back of the slide rule. (A photo of the slide rule could be lifted for your site, if you like.)

Instruction for Using the Nitrogen Rate for Corn Slide Chart. Web version with photos.

Print friendly version of instructions. PDF, no photos.

Webinar:

Webinar on Converting CRP to Corn and Soybeans

Organic Farming Systems Research at the University of Nebraska- This webinar, recorded on March 26, 2013, presents an overview of research being conducted at the University of Nebraska on organic farming. It includes short summaries by researchers of projects that emphasize production issues, grain quality, and agrosystem impacts. Watch the video clips of each topic or the full version with all the topics.

Radio Tapes:
A listing of current radio tapes is available at the Agalmanac link:

Audio Clips:
You need Real Player to listen to these audio clips, click here for a free download of the program.