Agriculture Reference
In-Depth Information
Very
Low
ERGS
200
75
Very
High
Copper
0.8 - 2.5
3.5
Very
High
Iron
10 - 25
175.3
Zinc
1 - 6
3.4
Manganese
8 - 30
10.9
Medium
* Soil labs may say 1:1 phosphorus to potassium or 2:1 phosphate to
potash, but they mean the same thing. Likewise the desired level may
say 200 and 100, or 400 and 200.
Note: Sulfur/sulfate was not measured on this test.
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