Disease suppressive soil often results from ________. A) ...

[maychende]

Disease suppressive soil often results from ________.
 
  A) adding organic materials to the soil that stimulate diverse microorganisms
  B) fumigation with a volatile chemical
  C) heating the soil by natural solarization or steam heat
  D) repeated tillage to keep the soil bare for at least one full year
  E) all of the above

Question 2

Many members of which group of soil microorganisms are anaerobic heterotrophs?
 
  A) fungi
  B) bacteria
  C) actinomycetes
  D) both A and C
  E) all of the above

[rnehls]

Answer to Question 1

A

Answer to Question 2

B

[maychende]

Gracias!

[tanna.moeller]

Excellent