Jenny Rees - Extension Educator

Jenny Rees

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2345 Nebraska Ave York NE 68467-1104
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Work 402-362-5508
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Twitter: @jenreesources
Blog: JenReesources Extension Blog

Part of a row of corn struggling to survive
These plants, in a Clay County corn field, are in deep water and deep trouble! The bright vibrant greens of typical V2 to V3 seedlings are replaced with sickly yellows, indicating plummeting chlorophyll readings and photosynthesis. Roots of these oxygen-starved plants are no longer growing and are likely dying. The soil to which they are anchored has changed dramatically and full plant recovery is likely not possible. (Photos by Roger Elmore)

Corn Establishment and Growth in Saturated Soils: A Brief Review of New Research

May 31, 2019
How long can seedling corn survive under flooded conditions? A review of current scientific literature offers new understandings of when and how plant injury occurs and what factors affect it.

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Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)
Figure 1. University of Wisconsin researchers studied drilling cover crops into V5 corn. (Source: University of Wisconsin Integrated Pest and Crop Management)

Interseeding Cover Crops into Corn or Soybean

May 23, 2019
In some years it may be difficult to well establish a cover crop after corn harvest. This article surveys current research on interseeding into an established crop, further considerations, and how to test this practice on your farm.

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Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.
Figure 1. A research plot at the university’s Eastern Nebraska Research and Extension Center (ENREC) near Mead on May 13, 2019. The entire plot is covered with no-till corn residue. The west half also is covered with a November 17 planted cereal rye cover crop. Soil temperatures 2 inches deep were recorded in each half, but were essentially the same, so are averaged in this report.

Soybean Germination/Emergence with April Planting Dates Relative to Coincident Air and Soil Temperatures in April and May

May 16, 2019
A closer look at air and soil temperatures in April and soybean germination and emergence from 10 planting dates did not find chilling injury, despite periods below 50°F. Further research is needed to better understand the imbibitional period in soybean.

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With Delayed Corn Planting, Is It Time To Switch Maturities?

May 9, 2019
Research suggests that staying with a full-season hybrid until late May often provides the best yield. If planting is delayed to late May or early June, consider a medium-season CRM might be considered.

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When estimating whether severely injured plants will survive, check the growing point. Healthy growing point is yellow/white and firm as is shown in this picture. Unhealthy growing point is discolored and soft to the touch.
When estimating whether severely injured plants will survive, check the growing point. Healthy growing point is yellow/white and firm as is shown in this picture. Unhealthy growing point is discolored and soft to the touch.

Replanting Corn: Things To Do and Think About

May 15, 2020
With the recent frost events that occurred the weekend of May 9-10, 2020 in portions of the State, some are questioning the need to replant corn. It’s important to assess potential recovery before making replant decisions.

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Early planted wheat field in Nuckolls County; taken early May 2019

Eastern Nebraska Winter Wheat Update

May 3, 2019
Wheat in eastern Nebraska is behind normal growth stage, but has good yield potential. Weather in late May and early June, as wheat enters the critical grain fill stage, will likely dictate final yield.

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Research plot with no-till corn residue, with left half planted to cereal rye in November 2018

Considerations when Planting Soybean Early

April 25, 2019
If you're planning to get an early start on your soybean planting, be sure to check for recommended soil temperatures and the forecast for the coming 48 hours to ensure optimal conditions for achieving good emergence.

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Planter ready to enter the field.

Corn and Soybean Planting Considerations

April 24, 2019
Planting sets the stage for a successful crop with an even emergence and stand. Consider these tips to help ensure you're providing favorable planting condition via proper soil conditions, planting window, planting depth, and seeding rates.

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