Machine-translated by Google. Questions are authored in English.
Top

Discussion

Denitrification is favoured by soil that is

  • A.Frozen through most of the winter
  • B.Waterlogged and low in oxygen
  • C.Dry and well aerated
  • D.Strongly acidic and sandy

Answer: B

Denitrifiers only switch to nitrate as an electron acceptor when oxygen runs short, so ponded, compacted or saturated soils drive the process. Good aeration keeps them respiring oxygen instead, which is why drainage conserves nitrogen fertiliser.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.