Russian version of the Mittleider Weekly Feed Mix calculator

Mittleider Weekly-Feed solution

To prepare 1 kg of Weekly-Feed Fertilizer you will need ¹:

Fertilizer	amount (kg)	N, %	P₂O₅, %	K₂O, %	MgO, %
Diammonium phosphate	0.216	18.0	46.0	0.0	0.0
Potassium chloride	0.269	0.0	0.0	60.0	0.0
Ammonium Nitrate	0.360	34.0	0.0	0.0	0.0
Magnesium sulfate	0.155	0.0	0.0	0.0	16.0

About mix

Concentration N—P₂O₅—K₂O—MgO (%):
16.13—9.93—16.13—2.48

Ratio N:P:K = 1.63:1:1.63

Ratio P:Mg = 1:0.25

Don't forget to add micro-nutrients ¹:

Molybdenum	0.8 g Molybdenum acid or 0.8 g Ammonium molybdenum oxide
Boron	5.9 g Boric acid or 9.1 g Borax
Iron	1.5 g Iron (Fe) chelate #330 or 20.5 g Iron sulphate
Manganese	6.1 g Manganese sulphate
Zinc	12.2 g Zinc sulfate
Copper	1.5 g Copper sulfate

According to the information from "The Mittleider Gardening Course" book (ISBN: 1929982038, 1999), p 50, 53, 106, 109
Chemical formulas of some fertilizers: Copper sulfate - CuSO₄⋅5H₂O, Magnesium sulphate - MgSO₄⋅7H₂O, Zinc sulfate - ZnSO₄⋅7H₂O, Manganese sulphate - MnSO₄⋅5H₂O, Iron sulphate - FeSO₄⋅7H₂O, Ammonium molybdenum oxide - (NH₄)₆Mo₇O₂₄⋅4H₂O

How to apply the mix

Weather	Frequency	Amount of Weekly-Feed mix
Normal	Every 7 days	41 g per meter of 18'' bed
Periods of cold weather	One application of Weekly-Feed Fertilizer every 14 days is enough.	41 g per meter of 18'' bed

To feed growing seedlings, make a dilute solution of the mixture

Water volume	Weekly-Feed Fertilizer Mix
3 L	6.18 g
5 L	10.31 g
10 L	20.61 g

Calculate different variant of the mixture

Mittleider Weekly-Feed Mix Calculator

If you want to try the Mittleider gardening method but have difficulties making the Weekly-Feed Mix,
this calculator can help.

With this calculator, you can quickly create a fully balanced Weekly-Feed mix using virtually any sorts of fertilizers locally available to you. All you need is to read the content on the package and type the numbers into the calculator. Or, choose from the list below if you see there something you can buy nearby.

Warning! Fertilizers available to you may have different content from the ones listed in the table below. Be careful. If your fertilizers are different, add them as new, giving them different names.

Select fertilizers available to you (the more you choose, the better):

Available fertilizers:

N nitrogen, %

P₂O₅ phosphorus, %

K₂O potassium, %

MgO magnesium, %

Ammonia sulfate	21
Ammonium Nitrate	34
Diammonium phosphate	18	46
Magnesium sulfate				16
Potassium chloride			60
Potassium nitrate	13		46
Sulfate of potash			50
Triple superphosphate		45
Urea	46

+ Add fertilizer which is missing

Ratio of the elements in the final mixture

Feel free to adjust this ratio, if you are an advanced gardener.

nitrogen (N)	phosphorus (P₂O₅)	potassium (K₂O)
	magnesium (MgO)
	–
–	1	–

How much of the mix do you need: kg

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