How does Mittleider weekly feed compare to similar products?
Recently I got to thinking, how does the Mittleider weekly feed compare to similar products that are marketed for gardeners? I made a note to check the garden section the next time I went to Walmart to see how they compared. Lets talk about what I learned and why the weekly feed is superior.
Mittleider weekly feed expected analysis after mixing
After we mix our weekly feed for the garden we can expect the following analysis assuming the NPK came from triple 16 fertilizer. Those percentages below would change depending on your NPK percentages. The following percentages come from the instruction sheet that comes with the packets of Mittleider Magic Micro-Mix nutrients:
Plant nutrient Percentage
N – Nitrogen 13.000
P – Phosphate 13.000
K – Potash 13.000
Mg – MgSO4 1.000
B – Sodium Borate 0.050
Mn- Manganese Sulfate 0.120
Zn -Zinc Sulfate or Sucrate 0.300
Fe -Iron Sulfate or Sequestrene 0.030
Cu – Copper Sulfate 0.030
Ca – Calcium 0.700
S – Sulfur 3.000
Cl – Chloride 2.000
Mo – Sodium Molybdate 0.015
Osmocote expected analysis
Here are some pictures that show the analysis of the Osmocote. The percentages are good for N,P and K but that is all that it includes. Osmocote is missing 10 of the nutrients that are provided in the weekly feed. If you calculate the cost of this product just to use it as a standard fertilizer its going to be very expensive. I can buy 50 pounds of fertilizer for one one and a half containers of this product would cost.
Guaranteed analysis of the Liquafeed
The expected analysis of the Liquafeed is Nitrogen 12, Phosphate 9, Potash 6, Manganese 0.05 and Zinc 0.05. It only contains 5 of the 13 nutrients the plants need us to provide. It contains no calcium which aides the plant in taking up those it does provide.
The expected analysis of the MiracleGro potting mix
The potting mix is another one that contains only the NPK. The percentages are Nitrogen 21, Phosphate 11 and Potash 16. People use this and grow container gardens in it.
The expected analysis of MiracleGro Shake’n Feed
In the Shake n Feed I found the closest results to the weekly feed: Nitrogen 9, Phosphate 4, Potash 12, Calcium 3.5, Magnesium 1.4, Sulfur 7, Copper 0.05, Iron 9, Manganese 0.35 and Zinc 0.1.
Of all the products I compared to the weekly feed the Shake’n Feed comes the closest to having the 13 nutrients found in the weekly feed. Unfortunately it lacks three nutrients.
Rock dust guaranteed analysis
The data I found for the rock dust was derived from volcanic rock. Other forms of rock may produce a different analysis. Also, the phosphate shown in the analysis is Phosphoric Acid. Phosphoric acid 13, Potash 11, Calcium 1.23, Magnesium 1.74, Iron 0.8465, and Sodium 1.20.
Side by side analysis comparison
Here is a simple spreadsheet showing the products side by side to make it easier to see how they compare.