Forecast

Heat effects on corn and soybean crops

July 20, 2017

Water and temperature affect many crop processes simultaneously ranging from crop growth, development, photosynthesis, respiration, water transpiration, grain fill, and nutrient cycling. The magnitude of high temperature or drought stress depends also on the stage of the crop. Another factor that should be considered is how high minimum temperatures are. Read full ICM News article Read more about Heat effects on corn and soybean crops

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Understanding rye cover crop effects on corn

November 7, 2016

The effect of cover crop on crop yields, soil health, and nitrate-nitrogen (N) leaching is complex and variable from year to year. From an environmental point of view, the higher the rye biomass production at termination day, the higher the likelihood of increasing soil organic carbon and decreasing N leaching. However, common asked questions are whether the magnitude of rye biomass is proportionally related to yield benefits or losses and how much water and N does rye use? Read more about Understanding rye cover crop effects on corn

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June 5 to 25 Weather Impacts Crop Yields

June 28, 2016

2016 weather deviation from climatic average for June 2 - 25Weather conditions over the last three weeks were far from average (Fig. 1). Across our Forecasting and Assessment of Cropping sysTemS (FACTS) locations, precipitation was 48% below average, while heat stress (defined as maximum temperature above 86oF), growth degree days (GDD), and radiation were 53%, 25%, and 19% above the long-term average. However, our northeast Iowa was the exception; it received 7 inches of rain from June 5 to June 25, while all the other sites have received less than 1 inch of rain (Fig. 1).  Read the full ICM News article

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A Web Platform for Forecast and Assessment of Cropping sysTemS (FACTS)

June 24, 2016

map showing locations of experimental sitesCrops are growing rapidly and questions regarding expected end-of-season yields and soil water and nitrogen (N) status in the fields become very timely. A group of faculty, researchers, farm managers, and students from Iowa State University have developed a free, publicly available online platform ... Read full article from ICM News

Read more about A Web Platform for Forecast and Assessment of Cropping sysTemS (FACTS)

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FACTS is an ongoing project developed to forecast and evaluate real-time soil-crop dynamics in specific ISU fields. Predictions and measurements will be frequently updated as new information becomes available during the growing season. The project investigators and Iowa State University are not responsible for extrapolations made by individuals to other fields. Information from this website can be used for presentations without further permission if used in its entirety and credit is given to the Iowa State University FACTS project. Information from this website cannot be used in publications or other model improvement activities without prior permission of the project investigators.

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