Iron  - - Soil. Organic and Natural Products - Fertilizer
Iron - Soils. Organic and Natural Products - Fertilizers
Iron (Fe) in Soil - pH is a very important factor in interpreting iron tests. In addition, crops vary a great deal in sensitivity to iron deficiency. Normally a medium level would be adequate for most soils. If iron is needed it would be best applied foliar.
Soil Trace elements include : iron (Fe), manganese (Mn), copper (Cu) and zinc (Zn).
Nitrogen (N)
Phosphorus (P)
Potassium (K)
Calcium (Ca)
Magnesium (Mg)
Sulphur (S)
Copper (Cu)
Iron (Fe)
Manganese (Mn)
Zinc (Zn)
Sodium (Na)
Salt Salinity
N-P-K  -
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