The photo at right shows the results of a treatment done the 29th of July, 2019.
In this case, the grower knew he had a nitrogen problem and made a rescue foliar application in mid-season. The corn was harvested for silage so yield data was not obtained
The photos were taken the 6th of September.
When nitrogen is deficient in Mid-season this treatment of SP-1 and N-Force is a proven solution,
Also, you may want to consider K-Pak, Liquid Urea, and Nitro 22… as they have consistently helped to preserve yield when applied as a corn foliar or late season on soybeans when more nitrogen is needed.
As always, your rep is only a phone call away – and will be glad to assist in selecting the best mid-season application for you