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CONVERSION TABLES

ELEMENT FORMS

NH4 N-NH4

0.777

        

 N-NH4

 NH4

 1.285

NO3 N-NO3

0.226

 

 N-NO3

 NO3

 4.427

P2O5 P

0.436

 

 P

 P2O5

 2.291

PO4 P

0.326

 

 P

 PO4

3.066

K2O K

0.830

 

 K

 K2O

1.205

CaCO3 Ca

0.400

 

 Ca

 CaCO3

2.497

CaO Ca

0.714

 

 Ca

 CaO

1.399

MgCO3 Mg

0.288

 

 Mg

 MgCO3

3.467

MgO Mg

0.603

 

 Mg

 MgO

1.657

                        

CONCENTRATION CONVERSIONS IN SOLUTIONS

Meq/l - ppm conversion table (1ppm=1mg/liter) 

Meq/l  N-NO3 or N-NH4 ppm N 14   ppm N-NO3 or N-NH4 Meq/l N 0.07143
Meq/l H2PO4 ppm P 31   ppm P (Phosphorus) Meq/l H2PO4 0.03226
Meq/l K (Potassium) ppm K 39   ppm K (Potassium) Meq/l K 0.0256
Meq/l Ca (Calcium) ppm Ca 20   ppm Ca (Calcium) Meq/l Ca 0.05
Meq/l Mg (Magnesium) ppm Mg 12   ppm Mg (Magnesium) Meq/l Mg 0.0833
Meq/l SO4 (Sulfate) ppm SO4 48   ppm SO4 (Sulfate) Meq/l SO4 0.02083
Meq/l Na (Sodium) ppm Na 23   ppm Na (Sodium) Meq/l Na 0.04348
Meq/l Cl (Chloride) ppm Cl 35.5   ppm Cl (Chlorides) Meq/l Cl 0.02817

  

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