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Fluid Journal : Fluid Journal 2005-2007
12 Fluid Journal WINTER 2007 Stopping N Losses More Urgent Than Ever With Current Nitrogen Prices More and more growers are looking to urease inhibitors to curb N losses. INDUSTRY AT WORK Atopic that is on many growers minds these days is what nitrogen (N) source will I use and how much will I put down? Whatever the motivation, growers appear to have taken the next step by including or considering the use of enhanced fertilizer technologies into their fertility programs. One such product is a urease inhibitor manufactured by Agrotain International. One compelling part of the grower's motivation to move toward urease inhibitors is the steady upward march of N prices. Using an inhibitor is one very effective way to protect their N investment. Agrotain Plus is designed to do this by stopping N losses resulting from volatilization of ammonia from urea in UAN and reducing leaching of nitrate by inclusion of a nitrification inhibitor in the formulation. What is volatilization? Volatilization occurs when urea in UAN rapidly undergoes hydrolysis particularly in surface applications. Urease enzyme converts urea into ammonia and carbon dioxide. Volatilization is the loss of gaseous ammonia to the atmosphere. Under the right conditions, as much as 30 percent of ammonium nitrogen will be lost within a few days. Volatilization can be prevented via our urease inhibitor. It blocks activity of the urease enzyme, minimizing N loss. This allows more time for rainfall and irrigation to move UAN into the soil. Slowing N losses In the presence of oxidizable organic matter,
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