Make the most of controlled-release fertilizers
Nitrogen (N) fertilizer applied as anhydrous ammonia, UAN solutions or urea can be lost if adverse (primarily wet) weather conditions precede the uptake by crops. According to DuPont Pioneer, controlled-release nitrogen fertilizers can reduce these losses by delaying the initial release of N and providing it gradually to better match its availability with crop uptake needs.
Controlled-release, also called slow-release or delayed-release, N fertilizers include coated ureas, non-coated "chemical-release" forms and other products. The higher cost of controlled-release products generally excludes their use in cases where conventional N fertilizers can perform the same function adequately. These products may be most useful for:
- High-value crops (i.e. seed crop)
- Environmentally sensitive areas
- Fields highly susceptible to N losses
- Fields with limited opportunities for repeat applications
- Contest plots
- Foliar applications
Most growers of commodity row crops who use controlled-release products likely apply most of their crops’ N needs with conventional products and only use controlled-release products to supplement their primary N fertilization program.
For more information about controlled-release nitrogen fertilizers, view DuPont Pioneer Crop Insights online.
Source: DuPont Pioneer
- New platform to simplify inventory and fertilizer sales
- Cheminova’s dimethoate 4E receives 2(EE) recommendation
- Ag markets proved rather volatile again Thursday
- Potential impact of climate change on rangeland plants
- Ag markets proved decidedly mixed again Thursday morning
- Economy, job market reaps benefits from RFS
- Commentary: Blame anti-GMO groups for deaths
- Julie Borlaug says biotech is necessary in fight against hunger
- What does “sustainable” food and agriculture really mean?
- Ohio bill to require certification to apply fertilizer
- FCC aims to offer high-speed internet to rural America
- Carbon-dioxide hurts nitrogen assimilation by plants