A two-year Georgia study demonstrates how proper ESN use can increase return in forage production. ESN protects nitrogen (N) from loss inside its unique protective coating and supplies N to the crop when it is needed. The result is increased forage yields and greater profitability.
Forages need N throughout the growing season. Most N uptake by forages takes place in the period of about 30 days after green-up or hay cutting. ESN blends may be used to meet this nitrogen demand.
In this Georgia study, ESN applied at green-up followed by a mid-season application increased revenue compared with urea applied at the same timings or in four applications. Revenue was greatest with a 50:50 blend of ESN:urea, and decreased with the addition of higher percentages of ESN. The decreases with higher percentages of ESN resulted because ESN did not release fast enough to supply all the N forages need in the short period of time at green-up or following cutting.