Given below are two statements: Assertion A: According to the Fertilizer Control Order, 1957, Biuret content in urea should not be more than 1.5%. Reason R: Sulphur-coated urea is a slow-releasing nitrogenous fertilizer.
In the light of the above statements, choose the most appropriate answer from the options given below:

Correct option is B

· Biuret is a by-product formed during the manufacture of urea, and high concentrations (>1.5%) are toxic to plants.
· Sulphur-coated urea is indeed a slow-releasing nitrogen fertilizer, but it does not directly explain the biuret content regulation.
· Hence, both statements are correct, but R does not explain A.