Planting And Replanting

Jul 01, 2013

The weather changed on about June 18. Since then there has been a lot of field work completed. A lot – not all – but a lot of the soybean acres have been planted. Also, farmers have made a lot of progress with side-dress applications of nitrogen and also with post emergence herbicide applications.

There was also a fair amount of corn replanting that was completed around June 20. Planting corn that late is fairly risky – in terms of yield potential and grain moisture at harvest. However, late planted corn worked out pretty well in 2008 – with some yield levels in the low 100 bu/a area.

The eastern part of my area continues to lag in fieldwork progress. That eastern part includes parts of Emmet, Palo Alto, Pocahontas, Kossuth Hancock and Winnebago counties.

There will be a fair amount of prevented planting in that area. It is fairly easy to drive down the road and see unplanted fields on both sides of the road. A couple of areas where that is apparent is east of Algona, near Rodman and west of Mallard.

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Video: Dr. Emerson Nafziger: Nitrogen Fertilizer Rates for Corn

The Crop Science Podcast Show, Dr. Emerson Nafziger from the University of Illinois breaks down decades of nitrogen research. From the evolution of N rate guidelines to how soil health and hybrid genetics influence nitrogen use efficiency, this conversation unpacks the science behind smarter fertilization. Improving how we set nitrogen fertilizer rates for rainfed corn is a key focus. Discover why the MRTN model matters more than ever, and how shifting mindsets and better data can boost yields and environmental outcomes. Tune in now on all major platforms!

"The nitrogen that comes from soil mineralization is the first nitrogen the plant sees, and its role is underestimated."

Meet the guest:

Dr. Emerson Nafziger is Professor Emeritus of Crop Sciences at the University of Illinois at Urbana-Champaign, with degrees in agronomy from Ohio State, Purdue, and Illinois. His research has focused on nitrogen rate strategies and crop productivity. He co-developed the Maximum Return to Nitrogen (MRTN) model, which is widely used across the Midwest. His research spans N response trials, hybrid interactions, crop rotation effects, and yield stability.