Depending upon the environment, both fall and spring-applied nitrogen (N) may be at risk of loss, and result in reduced yield of hard red spring wheat.
A study conducted at the Thunder Bay Agricultural Research Station (TBARS) in Ontario, looked at the use of ESN for both fall and spring N management, as compared to urea.
Fall applied ESN out-yielded fall urea by 3 bu/ac, and spring-applied ESN out-yielded spring-applied urea by 18 bu/ac (figure 1). During this study year, fall and overwinter N loss potential was relatively low, but loss potential during the next growing season was high.
Additionally, ESN provided for season-long protected N, that increased wheat protein levels in both the fall and spring application treatments (figure 2).
ESN Smart Nitrogen provides the flexibility for both fall and spring application – producing superior yield and protein.
Source: Tarlok Sahota, TBARS (Thunder Bay, ON). Nitrogen: Broadcast/Incorporated Oct 5, 2015; at seeding May 6, 2016.
