A) Release of Neem oil in the soil increases nitrogen fixation by the soil microorganisms.
B) Neem coating slows down the rate of dissolution of urea in soil.
C) Nitrous oxide, which is a greenhouse gas, is not at all released into atmosphere by crop fields.
D) It is a combination of a weedicide and a fertiliser for particular crops
Correct Answer: B
Solution :
Exp. [b] Coating urea with Neem oil or Neem cake has been proved to be an effective natural alternative to these chemicals. It has been scientifically established that Neem oil serves as an effective inhibitor if coated on Urea. The other commercially available Neem coating agents contain some of the isolated compounds of Neem. But Nature Neem urea coating agents contain all natural unaltered form a nutrient, which enables it to be an effective denitrifying agent and as well as a natural soil insecticide. Thus, the benefits are as follows ? Neem coating leads to more gradual release of urea, helping plants gain more nutrient and resulting in higher yields. ? Lower underground water contamination due to teaching of urea. ? Neem serves as a natural insecticide. ? Collection of Neem seeds is needed for manufacturing of Neem coated urea. This would generate employments in rural areas. ? Neem-coating will help check heavily subsidised urea's pilferage to chemical industry and other uses such as making of adulterated milk.
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