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

Map indicating end-of-season deviations from average corn yields for select sites in the Corn Belt
Map indicating end-of-season deviations from average corn yields for select sites in the Corn Belt

Oct. 16 Corn Yield Forecast - End of Season Report October 19, 2018

The end-of-season corn yield report finds that high temperatures during vegetative stages had little impact on forecasted yield potential. This is the final article in the series looking at simulated crop stages and yield forecasts for 41 locations across the US Corn Belt.

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Test plots showing sorghum (center) and other crops double-cropped after field peas in Saunders County in eastern Nebraska.

Double Cropping Pulses with Short-Season Crops, Forages, and Cover Crops in Eastern Nebraska September 6, 2018

A research project in eastern Nebraska is evaluating a double crop production system as a potential alternative to the traditional corn/soybean rotation. Following an early season crop of yellow field peas, short-season crops (corn, soybean, grain sorghum, millet and sunflower) and annual forages (forage sorghum and sorghum-Sudangrass) were planted.

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Map of the Corn Belt showing sites with above-, near-, and below-normal forecasted corn yields for 2018.

Aug. 22 Corn Yield Forecast: Shorter Crop Cycle Did Not Lead to Below-Average Yield August 23, 2018

Corn progress and yield forecasts for 41 sites across the Corn Belt indicate near- or above-average yields for most sites. High temperatures early in the season increased the rate of corn development and led to a shorter crop cycle, but do not appear to have diminished yields.

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Chart of Nebraska corn yields trends from 1971 to 1917.

Soybean and Corn Yield and Acreage Trends August 15, 2018

Nebraska soybean and corn yields have steadily increased from 1971 to 2017 in both irrigated and rainfed production systems. Nebraska irrigated soybean increased at a linear linear rate of 0.68 bu/ac, and irrigated corn increased at a rate of 2.17 bu/ac.

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Soybean research field

Field Case Study of Dicamba-Injured Soybeans using Forensic Analysis August 8, 2018

A field of dicamba-injured soybeans is used as an example to demonstrate the forensic analysis method to determine when dicamba exposure occurred.

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Corn field
Rainfed corn near Grant, planted about May 27. (Photo by Alexander Tonon Rosa and Italo Kaye Pinho de Faria)

2018 Corn Yield Forecasts: Physiological Maturity Expected Before Historical Averages August 2, 2018

Corn growth simulations across the Corn Belt indicate early corn maturity of one to two weeks for most sites. Simulated corn yields for rainfed and irrigated sites across the region near or above normal at most sites.

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Chart showing rate of soybean node accrual

Are Your Soybean Plants Exhibiting Dicamba-Induced Leaf Injury? July 19, 2018

Learn how to examine plant development and use this forensic strategy to determine the approximate calendar date when the plants in your field were likely exposed to dicamba.

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Soybean leaf cupping

Understanding Growth Regulator Herbicide Injury July 19, 2018

There are now five structurally different growth regulator herbicides, each of which affects plant growth differently. Understanding the differences can help you better identify the cause when you find damage in your field.

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