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library:articles:soil_ph_management 2010/03/30 13:40 library:articles:soil_ph_management 2016/04/28 15:12 current
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| Iron Sulfate | FeSO<sub>4</sub>.7H<sub>2</sub>O | 11.5 | 896  | | Iron Sulfate | FeSO<sub>4</sub>.7H<sub>2</sub>O | 11.5 | 896  |
| Aluminum Sulfate | Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> | 14.4 | 694  | | Aluminum Sulfate | Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> | 14.4 | 694  |
-| Ammonium Sulfate* | (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> | 23.7 | 422  |+| Ammonium Sulfate | (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> | 23.7 | 422  |
| *NOTE: The acidifying effect of elemental sulfur is caused by sulfur oxidizing bacteria. These bacteria must be present in the soil, in sufficient amounts, in order to have the desired effect. If a soils pH is above 7.2 in its natural state. it may not have a large population of sulfur oxidizing bacteria. In these cases it may be helpful to inoculate it by adding some soil from another source that is naturally acid. Also, the pH change caused by the bacterial oxidation of sulfur may be relatively slow (12 months or more) since they are dependent on sufficient soil moisture and temperature to accomplish efficient sulfur oxidation. The other products listed produce a chemical acidifying effect, independent of soil organisms and may be faster and more dependable than elemental sulfur.  |||| | *NOTE: The acidifying effect of elemental sulfur is caused by sulfur oxidizing bacteria. These bacteria must be present in the soil, in sufficient amounts, in order to have the desired effect. If a soils pH is above 7.2 in its natural state. it may not have a large population of sulfur oxidizing bacteria. In these cases it may be helpful to inoculate it by adding some soil from another source that is naturally acid. Also, the pH change caused by the bacterial oxidation of sulfur may be relatively slow (12 months or more) since they are dependent on sufficient soil moisture and temperature to accomplish efficient sulfur oxidation. The other products listed produce a chemical acidifying effect, independent of soil organisms and may be faster and more dependable than elemental sulfur.  ||||
 
library/articles/soil_ph_management.txt · Last modified: 2016/04/28 15:12 by bill