Soladome - Aquaculture Polyculture Hydroponics

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Soladome
44 Chapel Street, Norwood,
South Australia
Phone +61 (08) 8362 8042

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Nutrient solutions - more technical

Hoagland & Arnon in U.S.A. in 1938 developed a nutrient solution for laboratory research purposes and their formula is listed below. To the right of their formulation is the general range of nutrient elements used by plants...

Element		PPM	Range PPM
K	potassium	279	200 - 400
N	nitrate NO3	196	70 - 200
N	nitrate NH4		0 - 31
P	phosphorous	31	30 - 90
Ca	calcium	160	150 - 400
S	sulphur	64	60 - 333
Mg	magnesium	48	25 - 75
Fe	iron	0.8	0.5 - 5
Mn	manganese	0.25	0.1 - 1
B	boron	0.06	0.1 - 1
Zn	zinc	0.05	0.02 - 0.2
Cu	copper	0.02	0.02 - 0.2
Mo	molybdenum	0.04	0.01 - 0.1
	Chlorine		to 350

This information is given as a guide only - different crops, growing environments and growth stages will require different nutrient formulations. Refer to reading list for more information.

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