Know Your Hybrid’s Response to Nitrogen & Fungicide
Jul 14, 2026
Adam Stamp
Seed Specialist
RESPONSE TO NITROGEN
Modern corn hybrids show varying responses to nitrogen based on genetics. High-response hybrids often require on average 20–30 lbs. per acre more than lower-response, more efficient hybrids to reach optimal yields.
Nitrogen uptake is critical from the R1 to R6 grain fill timeframe, accounting for approximately 38 percent of nitrogen use. Be sure to ask your agronomist about adding SRN25B to your fungicide applications, especially with the excessive rainfall experienced in some areas.
RESPONSE TO FUNGICIDE
Fungicide is a key component of overall plant health and stalk quality. Plants grew extremely fast in a short amount of time this year after a slow start, making the stalks weaker than most years. One of the hidden benefits of fungicide that is difficult to quantify is standability.
Also, do not forget to apply fungicide to disease-prone soybean varieties around the R3 stage. Under high moisture and disease pressure, yield responses can range anywhere from a 4–6 bushel increase, and summer is just beginning.
Corn fungicide scores are based on 4-year trial studies:
Click to view.
Seed Specialist
RESPONSE TO NITROGEN
Modern corn hybrids show varying responses to nitrogen based on genetics. High-response hybrids often require on average 20–30 lbs. per acre more than lower-response, more efficient hybrids to reach optimal yields.
Nitrogen uptake is critical from the R1 to R6 grain fill timeframe, accounting for approximately 38 percent of nitrogen use. Be sure to ask your agronomist about adding SRN25B to your fungicide applications, especially with the excessive rainfall experienced in some areas.
RESPONSE TO FUNGICIDE
Fungicide is a key component of overall plant health and stalk quality. Plants grew extremely fast in a short amount of time this year after a slow start, making the stalks weaker than most years. One of the hidden benefits of fungicide that is difficult to quantify is standability.
Also, do not forget to apply fungicide to disease-prone soybean varieties around the R3 stage. Under high moisture and disease pressure, yield responses can range anywhere from a 4–6 bushel increase, and summer is just beginning.
Corn fungicide scores are based on 4-year trial studies:
- Low = 4.5-10 bushel increase
- Average = 9-14.8 bushel increase
- High = 14.2-18.7 bushel increase
Click to view.