Urea Fertilizer

Greater than 90% of world industrial production of urea is destined for usage as a nitrogen-release plant food. Urea has the greatest nitrogen content of all solid nitrogenous plant foods in common usage. Consequently, it has the most affordable transportation costs per unit of nitrogen nutrient.

Many soil microorganisms possess the enzyme urease, which militarizes the conversion of the urea to ammonia or ammonium ion as well as bicarbonate ion, thus urea fertilizers China are extremely swiftly transformed to the ammonium form in soils. Amongst soil germs recognized to lug urease, some ammonia-oxidizing bacteria AOB, such as species of Nitrosomonas, are additionally able to take in the carbon dioxide released by the reaction to make biomass using the Calvin Cycle, and also harvest power by oxidizing ammonia to nitrite, a procedure described nitrification. Nitrite-oxidizing bacteria, specifically Nitrobacter, oxidize nitrite to nitrate, which is extremely mobile in dirts because of its unfavorable cost as well as is a major reason for water pollution from farming.