Keith Glewen - Extension Educator

Keith Glewen

(faculty)
Work
1071 County Rd G Ithaca NE 68033-2234
US
Work 402-624-8030 On-campus 7-8030

icon-documentPublications and Other Intellectual Contributions

  • 2017 Soybean Management Field Days Research Update, Soybean Management Field Days Research Update - 2017, December 2017

Faculty Bio

Eastern Nebraska wheat field that yielded more than 110 bu/ac.
Figure 1. High yields (more than 100 bushels per acre) were harvested in some eastern Nebraska winter wheat fields this year.

Recap of 2017 Eastern Nebraska Winter Wheat Crop August 31, 2017

While final USDA yield numbers aren't in yet, it looks like 2017 wheat yields could rival the 2016 yields in portions of eastern Nebraska, based on state variety trials and extension educator reports. See the breakdowns by district.

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Figure 1. No-till planted winter wheat emerging after soybeans in eastern Nebraska.
Figure 1. No-till planted winter wheat emerging after soybeans in eastern Nebraska.

Wheat Planting Practices for Eastern Nebraska August 31, 2017

While many growers are thinking of fall harvest, others are preparing to plant their next wheat crop. Based on information from farmers, agronomists, and researchers, outlined here are seven key steps to help ensure a successful wheat crop.

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Farm Progress Daily Wheat Interview
Farm Progress Daily Wheat Interview

Why Grow Winter Wheat in Eastern Nebraska? August 31, 2017

The winter wheat varieties planted in eastern Nebraska today can yield upward of 140 bu/ac under good management and weather. If you haven't planted wheat in several years, consider today's advanced genetics and these other benefits from integrating wheat into your rotation.

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Maps showing likelihood of yield deviations for rainfed corn at various sites.

2017 Corn Yield Forecasts as of Aug. 9 August 11, 2017

Corn yield forecasts for Nebraska sites indicate near-average to above average yields for most irrigated sites. There was much more yield variability for rainfed locations where three of the sites were forecast with a 50%-100% chance of below-normal yields and three were forecast for normal yields, while one was near average.

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Probability of yield deviation for normal for irrigated corn, model ran July 18, 2017

2017 Corn Yield Forecasts as of July 18 July 19, 2017

Corn growth stages are estimated for 41 sites in 10 states and yields are estimated for select irrigated and rainfed sites, based on the Hybrid-Maize model and input from specialists and educators across a 10-state area as of July 18, 2017. The authors note that these early season yield forecasts vary widely, particularly for rainfed fields, and may change considerably by end of season.

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Locations of 2017 Yield Forecasting Center sites

2017 Corn Yield Forecasts: Approach and Interpretation of Results July 6, 2017

This article discusses data and data collection for the Yield Forecasting Center forecasts of crop phenology and yield for 2017, including a map of the site locations and specific data on crop management and soil types for each site.

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Chart of Nebraska & US corn yield trends (1971-2016)

Soybean and Corn Yield and Acreage Trends through 2016 May 25, 2017

Nebraska soybean and corn yields steadily increased from 1971 to 2016, in both irrigated and rainfed production fields. Charts based on USDA National Agricultural Statistics Service numbers track these changes.

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Palmer amaranth
Figure 1. This female Palmer amaranth plant can produce up to 0.5 million seeds.

Watch for Palmer Amaranth in Conservation Reserve Program (CRP) Fields May 12, 2017

Palmer amaranth has not been confirmed in conservation plantings in Nebraska; however, the identification and occurrence of Palmer amaranth in CRP fields in Iowa has raised concerns among weed scientists and growers about its spread into conservation plantings in Nebraska and offer some suggestions for growers.

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