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Updated FACTS Forecast

July 25, 2018 7:13 AM
Blog Post

Our analysis shows that soybean more has been more adversely affected by the 2018 weather compared to corn. Soybean yield potential has dropped while corn yield potential is still high. We are in the midst of critical corn grain filling now and soybean grain filling will be starting soon. Convergence in the best and worst case scenarios will begin to occur as grain filling continues.

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Hindsight is 20/20: What Can Be Learned from 2015

December 17, 2015
Scenario analysis of Yield Forecast Project at Ames for corn

As the saying goes, hindsight is 20/20; perfect vision. We often say “if we knew the weather, then we can provide the best recommendations.” Usually, we do not know the weather or we do not have the appropriate tools in place, so the questions remain unanswered. Now that we know the weather, the next important question is to determine what could have been done differently in 2015. This is an important part of understanding and evaluating production and environmental performance of our crop management decisions.

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September 2 UNL Yield Forecast released

September 8, 2015 8:54 AM
Blog Post

A new UNL Yield Forecast came out last Friday. The high probability of near- or above-average yields continues at all Iowa locations. The Sutherland and Kanawha locations still have considerable probability of below normal yields. The Lewis location has greater than a 99% probability of exceeding the long term yields. There is still are wide range of yield potentials but that range decreased from previous forecasts. The range of yield potentials forecast is still large due to only being roughly halfway through grain fill.


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In-Season Forecast of Soil Water-Nitrogen And Corn-Soybean Yields for Central and Northwest Iowa; August 12 Forecast

August 14, 2015
Corn and soybeans

For many farmers and agronomists, at this point in the growing season more thoughts move to determining realistic yield expectations. Making those yield estimates might be tough, especially for soybean, since both the corn and soybean crops are roughly halfway through grain fill.

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July 29th UNL Yield Forecast for Iowa

August 3, 2015 12:39 PM
Blog Post

It’s time for another Yield Forecast. A new Yield Forecast came out from the UNL project on July 29. For Iowa, this new forecast is similar to the July 15th forecast with the exception of northwest Iowa. Rains in northwest Iowa have increased yield potentials to 94% likelihood of being near or above the long-term average compared to 85% in the July 15th forecast.


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In-season forecast of soil water-nitrogen and corn-soybean yields for central and northwest Iowa; an update

July 31, 2015
Relative yield predictions for cropping systems in Iowa

By Mark Licht and Sotirios Archontoulis, Department of Agronomy

The corn and soybean crops are halfway through their life cycle and are currently in the most critical phase of growth. Final yields will be determined by a combination of soil-plant processes that are highly affected by the prevailing climatic conditions in August, existing status of the soil water and nitrogen reserves, biomass production and N uptake to date, and biotic factors such as insect and disease pressure.

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July 15th UNL Yield Forecast

July 20, 2015 9:54 AM
Blog Post

Summer is upon us with warmer temperatures, corn pollination underway, and corn grain fill beginning. That also means talk about estimating corn yields come fall. I’m involved in two yield forecasting projects. One is out of ISU and is led by Dr. Sotirios Archontoulis using the APSIM crop model. And the other is out of the University of Nebraska – Lincoln (UNL) and is led by Dr. Patricio Grassini. This post is pertaining to the UNL yield forecast project and their first forecast of 2015.

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