Charles Wortmann
emeriti
- Emeritus Professor Agronomy & Horticulture University of Nebraska–Lincoln
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402-472-2811
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Research Cited in CW
How Manure Impacts Soil Aggregation
Nebraska Extension Field Day for Management of Atrazine/Glyphosate-Resistant Palmer Amaranth
June 9, 2021
The in-person Palmer amaranth field day will feature on-site demonstrations on controlling atrazine/glyphosate-resistant Palmer amaranth in Roundup Ready/LibertyLink corn, Enlist corn and non-GMO white corn in Nebraska.
Small Grains Improvement Team Releases Two New Winter Wheat Varieties
June 8, 2021
Two promising new winter wheat varieties — a hard white winter wheat and a hard red winter wheat — could be available for planting in growers’ fields as early as fall 2021.
Weed Management Field Day June 23 at South Central Agricultural Laboratory
June 8, 2021
The Weed Management Field Day will highlight new technology and new herbicides for corn, soybean, sorghum and sweet corn, plus field experiments on weed control options for various herbicide programs.
Corn 95% Emerged, Soybeans Emerged 84%
June 8, 2021
For the week ending June 6, 2021, corn emerged was 95%, soybean emerged was 84% and winter wheat headed was 79%. More on sorghum, oats and dry edible beans in USDA NASS's latest report.
Corn Emerged at 84%, Soybean Planting Nears Completion
June 2, 2021
For the week ending May 30, 2021, there were 3.9 days suitable for fieldwork, according to the USDA's National Agricultural Statistics Service. Topsoil moisture supplies rated 2% very short, 10% short, 82% adequate and 6% surplus. Subsoil moisture supplies rated 3% very short, 17% short, 78% adequate and 2% surplus.
Field Crops Report:
Pasture and Forage Minute: Strategies for Alfalfa Weevil, Water Demands and Grass Surpluses
June 8, 2021
With alfalfa weevils remaining in the fields, extension educators share their recommendations for late spring infestation management strategies — plus, the benefits of using excess summer growth for winter grazing.
Pasture and Forage Minute: Scouting Plant Growth for Harvest, Grazing
June 1, 2021
Extension educators discuss their strategies for handling delays in first cutting of alfalfa, timing of grass hay harvest and extending forage supply after a cool spring has limited pasture production.
Wheat Stem Sawfly Emergence — Field Notes from Early June
June 7, 2021
Recent observations indicate very high populations of wheat stem sawfly in Nebraska wheat fields, with emergence not only from field edges but also deep within fallow fields. Documentation on infestations is encouraged for successful fall sawfly management.