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

Discussion

A soil that has been air dried and stored for months will, on rewetting, usually show

  • A.A rapid flush of microbial activity
  • B.No microbial activity at all
  • C.Permanent loss of all bacteria
  • D.A drop in carbon dioxide release

Answer: A

Drying kills part of the population and disrupts aggregates, and rewetting makes that dead material and newly exposed organic matter available at once, so respiration spikes before settling down. Survivors, especially spore formers, multiply quickly on the released nutrients.

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

Post your comment

Please log in or register to post a comment.