|Packing Weight||50 Kg|
Urea is the most important nitrogenous fertiliser in the country because of its high N content (46%N). Besides its use in the crops, it is used as a cattle feed supplement to replace a part of protein requirements. It has also numerous industrial uses notably for production of plastics. Presently all the Urea manufactured in the country is Neen coated.
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Specification of Neem Coated Urea as per Fertiliser Control Order
|Moisture % by weight, maximum||1.0|
|Total N % by weight (on dry basis) minimum||46.0|
|Biuret % by weight, maximum||1.5|
|Particle size||Minimum 90% of the material be retained on 1 mm and 2.8 mm IS sieve.|
|Neem oil content soluble in Benzene, % by weight, mimimum||0.035|
If urea is applied to bare soil surface significant quantities of ammonia may be lost by volatilisation because of its rapid hydrolysis to ammonium carbonate. The hydrolysis of urea can be altered by the use of several compound called urease inhibitors. These inhibitors inactivate the enzyme and thereby prevent the rapid hydrolysis of urea when it is added to soil. The rapid hydrolysis of urea in soils is also responsible for ammonia injury to seedlings if large quantities of this material placed with or too close to the seed. Proper placement of fertiliser urea with respect to seed can eliminate this difficulty.
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