Home / Crops / Fertilizers / Controlled-release N fertilizers cut losses

Controlled-release N fertilizers cut losses

04/29/2013 @ 1:17pm

Farmers know that nitrogen fertilizer applied as anhydrous ammonia, UAN solutions, or urea can be lost in wet weather and under other adverse conditions.

"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," according to a DuPont Pioneer report released today. 

"Controlled-release, also called slow-release or delayed-release, N fertilizers include coated ureas, noncoated '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," the report said.

Such fertilizer products can be used in high-value crops, in environmentally sensitive areas, on fields that are highly susceptible to N losses, in fields with limited chances for repeat application, and with 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," the report said. 


CancelPost Comment
MORE FROM AGRICULTURE COM more +

World Soil Day focuses on "neglected… By: 12/05/2013 @ 9:31am December 5 is being hailed as World Soil Day, a time to bring attention to the importance of soil…

New research to study climate, weather… By: 05/07/2013 @ 2:25pm The U.S. Department of Agriculture (USDA) has awarded $19.5 million for research focusing on the…

$175 million in funding released for… By: 05/01/2013 @ 11:19am The Natural Resources Conservation Service's Conservation Stewardship Program (CSP) is…

MEDIA CENTERmore +
This container should display a .swf file. If not, you may need to upgrade your Flash player.
Global Issues for a Younger Generation