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From
To
Multiply by
P
P2O5
2.29
0.44
PO4
3.06
0.32
H3PO4
H2PO4
0.9898
1.38
K
K2O
1.20
0.83
Ca
CaO
1.40
0.71
Mg
MgO
1.66
0.60
S
SO3
2.50
0.40
SO4
3.00
0.33
N
NH4
1.28
0.82
NO3
4.43
0.22
Acre
Hectare
0.405
2.471
Kilogram
Lbs
2.205
0.453
Gram
Ounces
0.035
28.35
Short Ton
MT
0.907
1.1
Gallon (US)
Liters
3.785
0.26
Kg/Ha
Lbs/acre
0.892
1.12
MT/Ha
892
0.001
1 meq
Correspondent element (mg)
1 mmol
Weight of ion
NH4 +
14 mg N
NH4+
18 mg NH4+
NO3-
NO3 -
62 mg NO3-
H2PO4-
31 mg P
H2PO4 -
71 mg P2O5
HPO4 2-
35,5 mg P2O5
15.5 mg P
K+
39 mg K
47 mg K2O
Ca2+
40 mg Ca
28 mg CaO
20 mg Ca
Mg2+
24 mg Mg
20 mg MgO
12 mg Mg
SO42-
32 mg S
48 mg SO4
SO4 2-
16 mg S
Na+
23 mg Na
-
Cl-
35.5 mg Cl