Charles Shapiro - Extension Soil Scientist—Crop Nutrition

Charles Shapiro

(faculty)
Work
HAL 57905 866 Rd Concord NE 68728-2828
US
Work 402-584-3803 On-campus 7-3803

Faculty Bio

Charles Shapiro retired from the University of Nebraska-Lincoln in January 2018, but continues to contribute to CropWatch as an emeriti professor.

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A corn field at mid-grain filling near Atkinson, Nebr. (Photo courtesy of Nicolas Cafaro La Menza and Mariano Hernandez; taken August 10, 2016).
A corn field at mid-grain filling near Atkinson, Nebr. (Photo courtesy of Nicolas Cafaro La Menza and Mariano Hernandez; taken August 10, 2016).

2016 Corn Yield Forecasts as of Aug. 10 August 11, 2016

Simulations of 2016 end-of-season corn yield potential for 41 sites indicate high probability of near or above-average yields in irrigated fields, but much more variability across the Corn Belt for rainfed fields. Several sites in southern and northeast Nebraska and in Iowa show a higher probability of below average yields. The article includes yield forecasts for each site, along with conditions for the period contributing to the forecasts.

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A corn field at early stages of grain filling near Saronville, Nebr.  (Photo by Agustina Diale; taken on July 27, 2016.)
A corn field at early stages of grain filling near Saronville, Nebr. (Photo by Agustina Diale; taken on July 27, 2016.)

2016 Corn Yield Forecasts as of July 27 July 28, 2016

Corn yield forecasts, based on Hybrid-Maize simulations and input from crop experts in 10 states, were developed for 41 sites across the Corn Belt on July 27. For irrigated corn, based on this conditions at this point in the season, there is only a low probability of below average yields. For rainfed corn, the majority of the sites studied, the results are more variable across locations. The article includes yield forecasts for each site, along with conditions for the period contributing to the forecasts.

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Yield probabilities for irrigated corn, July 13, 2016.
Yield probabilities for irrigated corn, July 13, 2016.

2016 Corn Yield Forecasts as of July 13 July 14, 2016

Based on modeling corn growth stage and end-of-season yield for 41 sites in 10 Corn Belt states, researchers are forecasting potential end-of-season yield in "real time" to aid in decision-making thoughout the season. On July 14 they reported that corn has already reached or is approaching silking throughout most of Nebraska and the Corn Belt, except for corn in the northern and eastern states, where growth is running behind the rest of the region.based on modeling end-of-season corn yield for 41 sites. There is a low (<20%) probability of below-average yields at all irrigated locations, except for two sites in southeastern Nebraska. The range of forecast yields at the rainfed sites is wider. There is a relatively high probability (>75%) of above-average yield at two locations in the northern states and below-average yield at three locations. See story for predicted yields and probabilities for all the sites.

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Map of sites for corn yield forecasts for 2016
Map of sites for corn yield forecasts for 2016

2016 Corn Yield Forecasts: Approach and Interpretation of Results June 30, 2016

The Yield Forecasting Center will be providing in-season corn yield forecasts every two weeks starting in mid-July to aid growers and the ag industry in making management, logistics, and marketing decisions through the season. The Center consists of a core team at UNL in collaboration with agronomists and extension educators from universities throughout the Corn Belt.

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Nitrogen Rescue Treatments in Corn June 17, 2016

When corn is yellow and struggling to get nitrogen, a rescue treatment may be advisable. Research in neighboring states found a rescue treatment could increase yields by an average 34 bu/ac.

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Managing N in a Wet Spring May 5, 2016

USDA NASS estimated 26% of Nebraska’s corn acres had been planted as of May 2, well behind last year’s pace of 45% and slightly behind the five-year average of 31%. The pace is undoubtedly being affected by the amount of precipitation across the state and the wet field conditions (Figures 1 and 2).

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Inoculating Your Soybeans: When, Where, Why? April 20, 2016

Nebraska farmers must scrutinize inputs and focus on finding profit for their estimated 5.3 million soybean acres  in 2016.

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Nutrient Levels, Fertility, and the Price Squeeze March 30, 2016

Current economic conditions are a challenge for crop producers to earn profits from corn, soybean, winter wheat, and milo production. Following is a discussion around how to make nutrient decisions this year. Robert Tigner is an Extension Educator focusing on agricultural economic issues.

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