Historical Corn and Soybean Yield Improvement in Kentucky

By Dennis Egli
Published on Mar. 24, 2025

It won’t be long before Kentucky farmers start planting the 2025 corn and soybean crops. At this time of the year, farmers are always optimistic, expecting record yields if the weather cooperates. This expectation is a result of the yield trends over the last nearly 100 years.

What Limits Yield – The Source or the Sink? Does it Matter?

By Dennis Egli
Published on Feb. 21, 2025

Crop Physiologists often analyze the yield production process in grain crops by dividing the process into two components – the source and the sink. The source is the photosynthetic machinery that supplies the raw materials and energy for plant growth. The sink is the seed that utilizes simple sugars from the source to grow.