Hoagland Solution: homemade hydroponic solution

May 8, 2008

Hoagland solution recipes:

Hoagland solution #1 (per liter of nutrient solution):

5 ml of 1 M (M=Molar) potassium nitrate

5 ml of 1 M calcium nitrate

1 ml of 1 M monopotassium phosphate

2 ml of 1 M magnesium sulfate

1 ml of micronutrient stock solution (see recipe below)

1 to 5 ml of 1000 mg/liter iron from iron chelate (Fe-EDTA, Fe-DTPA,
or Fe-EDDHA)

Hoagland Solution minus nitrogen (per liter of nutrient solution):

10 ml of 0.05 M monocalcium phosphate

200 ml of 0.01 M calcium sulfate dihydrate

5 ml of 0.5 M potassium sulfate
2 ml of
1 M magnesium sulfate

1 ml of micronutrient stock solution

1 to 5 ml of iron chelate stock solution as for #1

(add some calcium nitrate to give a Hoagland solution with some nitrogen but
less than 100% nitrogen, e.g. 10% nitrogen is supplied by 0.75 ml of 1 Molar
calcium nitrate)

Micronutrient stock solution per liter:

2.86 g boric acid

1.81 g manganese chloride -
4 hydrate

0.22 g zinc sulfate - 7 hydrate

0.08 g copper sulfate - 5 hydrate

0.02 g 85% molybdic acid

When diluted 1:1000 the micronutrient stock solution provides the
following in mg/liter:

Boron 0.5

Manganese 0.5

Zinc 0.05

Copper 0.02

Molybdenum 0.01

Source: http://www.madsci.org

Written by Mike · Filed Under Hydroponics Experiments