|
Amendment |
Formula |
Speed |
Use |
|
Limestone |
CaC0 |
Slow |
Raises soil pH
i.e. makes it more alkaline |
Hydrated Lime |
Ca(OH)2 |
Rapid |
Raises soil pH i.e. makes it more alkaline |
Gypsum or Calcium Sulfate |
CaSO4 |
Medium |
Adds
calcium, which displaces sodium in soils and
improves drainage |
Sulfur |
S |
Slow |
Adds
sulfur and lowers soil pH i.e. makes it more acid |
Epsom Salts |
MgSO4,7H2O |
Rapid |
Adds
magnesium |
Aluminum Sulfate |
Al2(S04)3 |
Rapid |
Adds
sulfur and lower soil pH |
Calcium Nitrate |
Ca(N03)2 |
Rapid |
Adds
calcium and
nitrogen and raises soil pH i.e. makes it more
alkaline (fertilizer analysis 15-0-0) |
Ammonium Sulfate |
(NH4) 2S04 |
Rapid |
Lowers pH sharply, adds
sulfur and
nitrogen (fertilizer analysis 20-0-0) |
Magnesium Sulfate |
MnSO3
|
|
Lowers
pH i.e. makes it more acid and adds
magnesium |
Iron Sulfate |
FeSO4 |
|
Lowers
pH i.e. makes it more acid and adds
iron |
Chelated Iron |
9-12% Iron |
|
Adds
iron in absorbable form |
Borax |
Na2B407.10H20 |
|
Adds
boron |
Copper Sulfate |
CuSO4
|
|
Adds
copper
and lowers pH i.e. makes it more acid |
Micronutrient Fertilizers |
Varies |
|
Adds deficient micronutrients |