Commonly used fertilizer acid-base reference table
Commonly used fertilizer acid-base reference table
|
fertilizer type |
fertilizer name |
Chemical acidity and alkalinity |
Physiological acidity and alkalinity |
|
Nitrogen fertilizer |
ammonium bicarbonate |
alkaline |
neutral |
|
|
ammonium sulfate |
weakly acidic |
acidic |
|
|
ammonium chloride |
weakly acidic |
acidic |
|
|
ammonium nitrate |
weakly acidic |
neutral |
|
|
urea |
neutral |
neutral |
|
Phosphate fertilizer |
Calcium superphosphate |
acidic |
acidic |
|
|
Calcium triple superphosphate |
acidic |
acidic |
|
|
calcium magnesium phosphate |
alkaline |
alkaline |
|
|
Phosphate rock powder |
Neutral or Weak alkaline |
alkaline |
|
potash fertilizer |
potassium chloride |
neutral |
acidic |
|
|
potassium sulfate |
neutral |
acidic |
|
compound fertilizer |
Nitrophosphate |
weakly acidic |
neutral |
|
|
Monoammonium Phosphate |
acidic |
neutral |
|
|
diammonium phosphate |
Weak alkaline |
neutral |
|
|
Potassium dichloride phosphate |
weakly acidic |
neutral |
Notice:
Chemical acid-base properties refer to the acid-base properties of fertilizers after they are dissolved in water
Physiological acidity and alkalinity refers to the acidity and alkalinity of the soil after the fertilizer is applied to the soil and absorbed by the crops.
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