JSTOR Daily1 j
Comparative effects of urea, ammonium, and nitrate on phytoplankton abundance, community composition, and toxicity in hypereutrophic freshwaters
56, No. 6, 2011 Comparative effects of urea, ammonium, a... Dissolved nitrogen (N) as urea ([NH₂]₂CO), nitrate (NO⁻₃), and ammonium (NH⁺₄) was added to naturally phosphorus (P)-rich lake water (up to ...
blog.lib.umn.edu9 j
Fertilizer urea
But when soil-moisture content is high, fall applications of urea haven't performed as well as AA. Applying urea-ammonium nitrate (UAN) in the fall isn’t recommended due to rapid nitrification and a ...
extension.purdue.edu4 j
Types and Uses of Nitrogen Fertilizers for Crop Production
They are satisfactory as sidedress fertilizers for corn, except on extremely sandy soils. 28-32% N Materials (Non-Pressure). Various urea-ammonium nitrate-water (or UAN) mixtures are classified as ...
BBC1 j
Beirut explosion: Where else is ammonium nitrate being stored?
Following the destruction caused by ammonium nitrate exploding at Beirut's port ... were actually being used to store "organic urea, used as agricultural fertilisers". "They are neither explosive ...
BBC8d
Explosive fertiliser in Ivory Coast harbour nothing to fear, officials say
Ammonium nitrate is commonly used as an agricultural fertiliser, but is also potentially explosive. Its presence in the waters off the busy city of Abidjan - home to more than six million people ...