One-pass fertilizer application gives growers an easy-to-see and quantifiable advantage. When growers refer to one-pass application, they’re talking about the practice of applying fertilizer and seed simultaneously in the same row during planting. This practice not only reduces field passes, but also boosts nutrient use efficiency and keeps soil compaction to a minimum. It’s that simple. Don’t forget about the time saved, workload reduced and the economic advantage of applying fertilizer directly with the seed, all in one go.
Seeding during the springtime can make balancing the right amount of nitrogen (N) with the right application time tricky. It’s not uncommon for many growers to have the added challenge of any remaining fall harvest as well as wet soil conditions in the spring. Navigating these conditions for seeding is enough trouble without adding in another pass for fertilizer application. This, coupled with time constraints makes applying N with the seed an easy solution.
Using this technique with N fertilizer has benefits and risks. Applying N fertilizer with the seed can put seedlings at risk of dehydration from the fertilizer competing for moisture, or free ammonia gas released as N fertilizer breaks down can damage the seed. Both of these effects are based on the fertilizer’s close proximity with the seed and seedling.
ESN® SMART NITROGEN® offers security for growers who want the benefits of one-pass application without the risk of seed damage. ESN, the only controlled-release N fertilizer available, has a unique polymer coating protecting the urea granule. This coating is responsive to temperature – ensuring the N is being released when the plant needs it and will actively uptake the N. The coating provides a protective barrier between the seed and fertilizer, so growers can safely apply ESN with the seeds at up to 3 times the seed safe rate of urea.
Growers know N applied in the spring will still be available throughout the entire season when the crops need it most, due to its controlled-release nature. The controlled-release helps prevent against common N losses including denitrification, leaching and volatilization.
With ESN, growers can reap the benefits of one-pass seeding – reduced soil compaction, better nutrient efficiency and more economical – while resting easy knowing their seedlings are safe from risks usually associated with applying N during seeding.