Sour Soil 
An agricultural term, often used in turfculture prior to the mid-20th Century and still sometimes in gardening, meaning an acid soil which would most likely be less than pH 6.0.
Sour Soil
An agricultural term, often used in turfculture prior to the mid-20th Century and still sometimes in gardening, meaning an acid soil which would most likely be less than pH 6.0.