Charles Wortmann - Extension Soil and Nutrient Management Specialist

Charles Wortmann

faculty
Work Keim Hall (KEIM) 369
Lincoln NE 68583-0915
US
Work 402-472-2909 On campus, dial 2-2909

Faculty Bio

Research Cited in CW
How Manure Impacts Soil Aggregation

corn seedling with damage

Fertilizer-nitrogen Injury

May 22, 2020
Nitrogen (N) is the most limiting nutrient in corn. However, there is risk of crop injury with band application of fertilizer-N.

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nitrogen fertilizer being applied to corn
Photo by Richard Ferguson

Tips for In-season Nitrogen Management in Corn

April 29, 2020
This spring conditions are good for pre-plant fertilizer, but there are still considerations that justify shifting more nitrogen application to in-season versus pre-plant.

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Two Nutrient Management Decision Tools Updated

April 16, 2020
Recently, two nutrient management tools produced by Nebraska Extension have been updated and are now available.

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Proposed Changes to Nebraska Recommendations for Manure Nitrogen Credit

April 7, 2020
Managing manure for economic and environmental benefit is based, in part, upon our ability to efficiently recycle manure nitrogen (N) between animals and crops.

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Ismail Dweikat, University of Nebraska-Lincoln professor of agronomy and horticulture, has been researching hemp production in small plots for the last two crop seasons.
Figure 1. Ismail Dweikat, University of Nebraska-Lincoln professor of agronomy and horticulture, has been researching hemp production in small plots for the last two crop seasons.

Hemp Production in Nebraska - Revised

March 25, 2020
Is hemp on your horizon as a new crop for your rotation? In this, the first of three stories on the topic in this week's CropWatch, two agronomy professors outline key production information, often drawn from research in other states and countries.

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Figure 1. Hemp variety best suited for CBD production.
Figure 1. Hemp variety best suited for CBD production.

Hemp Production for CBD - Revised

March 25, 2020
Research from other states and countries offers some insight into practices for growing CBD hemp in Nebraska. CBD hemp is a high-value crop that's labor-intensive and often grown more as a horticultural than as an agronomic crop.

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Industrial hemp research plot

Hemp Production for Fiber or Grain - Revised

March 25, 2020
Information for those considering growing hemp for fiber or grain in Nebraska, including a Q&A and sample production budgets from other states.

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Nebguide g2322

New NebGuide - Crop Management to Reduce Soil Nitrous Oxide Emissions in Nebraska

February 24, 2020
A new NebGuide, G2322, authored by Bijesh Maharjan, Virginia Jin, Laila Puntel, Javed Iqbal, Tyler Williams, Humberto Blanco and Charles Wortmann, is available in both html and PDF formats.

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