Items: Research
Corn Yield Recovery with At-Tasseling/Early Silking N Application
By John Grove and Edwin Ritchey
Published on Feb. 21, 2025
In the past decade, over 50 % of the years have given corn growers some difficulty with wet early season conditions. These conditions can complicate corn nitrogen (N) management. Sustained wetness can delay/prevent N application, resulting in uncertainty in corn’s N status at-tasseling/early silking (VT/R1), when ear development commences.
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.
Too Wet to Soil Sample but Ideal to Check for Soil Compaction
By Edwin Ritchey and John Grove
Published on Feb. 21, 2025
We know producers are ready for the soil to dry out so they can start topdressing wheat with their first shot of nitrogen. This also makes us think about soil compaction, which is simply compressing a given volume of soil into a smaller volume. Compaction can occur in different places in the field and can be due to different reasons.
