Jenny Rees - Extension Educator

Jenny Rees

faculty
Work
2345 Nebraska Ave York NE 68467-1104
US

Twitter: @jenreesources
Blog: JenReesources Extension Blog

Pollen on leaves and silks in spite of heat
Corn pollen on and near silks. For each kernel of grain to be produced, one silk needs to be fertilized by one pollen grain. Photo by Jenny Rees.

How Extended High Heat Disrupts Corn Pollination

July 19, 2019
A lot of factors can affect corn pollination success, including recent and predicted high heat and high humidity. This explains how environmental conditions influence the pollination process and how a cool down later this weekend may be helpful.

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Growth stages of corn at rainfed sites in monitored by Corn Yield Forecast Center

2019 Corn Yield Forecasts as of July 15

July 19, 2019
Corn is still in vegetative stages across much of the Corn Belt. At this point, delayed planting doesn't appear to have affected yields at irrigated sites. Yields for rainfed sites vary considerably, with those on the western edge trending above normal.

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Map of the Corn Belt showing locations for the 2019 Corn Yield Forecasts
Map of the Corn Belt showing locations for the 2019 Corn Yield Forecasts

2019 Corn Yield Forecasts: Approach and Interpretation of Results

July 8, 2019
Agronomists address how the Corn Yield Forecast Center develops yield forecasts, what to expect during the growing season, and how to use the forecasts to inform farm decisions. Tables detailing soil types and crop management for each of the 41 locations are included.

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Unplanted acres with corn residue

Check Herbicide Restrictions before Planting and Using Cover Crops

June 28, 2019
Cover crops offer many benefits for prevented planting fields; however, including them in a rotation adds another layer of complexity, particularly when it comes to plant-back restrictions for previously applied herbicides. Here's what to check before selecting a cover crop species.

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Soybean emerging from a crack in a heavily crusted field.

Considerations after Crusted Soybean

June 14, 2019
Soil crusting is challenging soybean emergence, but is it enough to warrant replanting? Here are early steps to remediate crusting problems and factors to consider when considering replanting.

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Planter in a field of corn residue

Corn Hybrid Maturities and Late Planting

June 13, 2019
Still planting corn and wanting to change to a different hybrid maturity? Here are some things to consider and a tool that can help you assess which hybrid options are likely to mature before an average fall freeze date for your location.

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Strategies for delayed soybean planting

Strategies with Delayed Soybean Planting

June 13, 2019
Adjusting soybean planting practices (row spacing, seeding rate and the use of custom planting) and relative maturity of the variety can help maximize yield potential when planting after mid-June.

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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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