making soil more acidic for blue berries.
Will adding liquid horse manure help to make my soil more acidic in my blue berry patch. Is there a better way? Thanks.
Nicollet County Minnesota
If you have sandy loam soil with a pH between 5.5 and 7.0 then mix 4 to 6 inches of acid peat into the top 6 to 8 inches of soil. Elemental sulfur will also lower the pH but it takes at least one year to adjust the pH. Iron sulfate reacts much faster than elemental sulfur (less than one month) but you need 6 times the amount of elemental sulfur needed. http://www.extension.umn.edu/distribution/horticulture/dg3463.html
A soil test will help you determine the soil pH and fertilizer needs of your blueberries. http://soiltest.cfans.umn.edu/