The Scotts Testing Lab will tell you all you need to know about your fertilizer solution.
- pH
- Soluble Salts
- Alkalinity
- Total Nitrogen
- Nitrate–N
- Ammoniacal–N
- Phosphorus
- Potassium
- Calcium
- Magnesium
- Sulfur
- Boron
- Copper
- Iron
- Manganese
- Molybdenum
- Zinc
- Sodium
- Chloride
- Fluoride
- Aluminum
Only $34.00
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