Disease suppressive soil often results from _____.
A)Fumigation with a volatile chemical.
B)Heating the soil by natural solarization or steam heat.
C)Repeated tillage to keep the soil bare for at least one full year.
D)Adding organic materials to the soil that stimulate diverse microorganisms.
E)All of the above.

Question

Quizplus · Accepted Answer

Adding organic materials to the soil that stimulate diverse microorganisms is the best way to create disease suppressive soil as it promotes the growth of beneficial microorganisms that can help suppress soil-borne diseases. Fumigation with a volatile chemical and heating the soil by natural solarization or steam heat can also be effective but may have negative environmental impacts. Repeated tillage to keep the soil bare for at least one full year is not recommended as it can lead to soil erosion and compaction.

Disease Suppressive Soil Often Results from _____