How Fast and Deep do Corn Roots Grow in Iowa?

June 14, 2017

Corn roots grow rapidly starting at the 4th-leaf stage and continue throughout vegetative development. This typically occurs from June to early July. Several factors affect root growth, but temperature and soil moisture are the most relevant factors in the absence of soil constraints. Read full ICM News article

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FACTS is an ongoing project developed to forecast and evaluate in real-time soil-crop dynamics at  specific ISU research fields (field scale) and at regional scale. Predictions will be frequently updated as new information becomes available. 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.