Agriculture Reference
In-Depth Information
be used, Potassium, Magnesium, or Calcium chloride could be used as a Cl
source instead of NaCl.
Amount of Primary Cations and Anions needed
Anions
SulfurS(partspermillionppm)
20 Add69ppmSulfurS
PhosphorusPppm
100 Add78ppmPhosphorusP
Cations
CalciumCa++
ppm
Desired
Found
Deficit
1550
1250
-300
Add300ppmCalciumCa
CaBaseSaturation60-70%
55.0%
MagnesiumMg++
ppm
Desired
Found
Deficit
164
116
-48
Add48ppmMagnesiumMg
MgBaseSaturation10-20%
8.5%
PotassiumK+
ppm
Desired
Found
Deficit
178
89
-89
Add89ppmPotassiumK
KBaseSaturation2-5%
2.0%
SodiumNa+
ppm
Desired
Found
Deficit
39
26
-13
Add13ppmSodiumNa
Na Base Saturation 1-5 %
1.0%
These are the primary plant nutrients that are measured on a standard soil test. In
the next chapter we will discuss the minerals Boron, Iron, Manganese, Copper and
Zinc.
