Foliar fertilizers rarely increase yield in soybean
2021
- Department of Agronomy, UW Madison
Project Media
Farmers across a wide range of US soybean growing environments are interested in using foliar nutrient
products to increase yield and profitability. But, applying foliar fertilizers increases on-farm expenses
and could decrease profitability where these fertilizers are not associated with a yield increase. In 2019,
we established field trials to better understand which growing environments may see a yield increase
when foliar nutrient products are applied. Trials were placed in 20 locations across 13 states in fields
with different environmental conditions and yield potentials. Yield averages for each location can be
found across the 20 environments in Figure 1.