M
Marc
Guest
As far as I know rainwater is preferred over tapwater to water orchids but I don't have an unlimited supply of rainwater so I've allready used tapwater for watering my plants and probably will do so in the future as well.
I've recieved a sheet from the company that I get the tapwater from but it's so much data that I don't know what to look for.
I also looked up information ladyslipper.com and I can't reach the "water quality issues for slipper orchid growers" section.
And the "mineral Nutrition for slipper orchids growers" section states a few values in ppm. ( http://ladyslipper.com/minnut.htm )
I'll put down the values for the elements mentioned on the link above as provided by the water company. The values are give in mg/l though.
PH = 7.5 - 8
NO3 = 2.5 mg/l
NH4 = 0.025 mg/l
Calcium = 78.25 mg/l
Magnesium = 7.4 mg/l
Phosphorus = not mentioned / PO4 = 0.015 mg/l
Sulfur = not mentioned / SO4 = 76mg/l
Boron = 0.025 mg/l
Iron = 0.0081 mg/l
Manganese = 0.0050 mg/l
Zinc = 0.005 mg/l
Copper = 0.0025 mg/l
Molybdenum = not mentioned
I hope that someone can help me out, chemistry classes were a long time ago.
I would like to know how "bad" my tap water is for my plants. And what to look out for when starting with fertilizer.
edit:
Did some google-fu and according to most sites I can state that 1mg/l = 1ppm for water based solutions. So essentialy that would result in calcium and perhaps sulfur to be to high? Any other elements or stuff i need to look out for?
I've recieved a sheet from the company that I get the tapwater from but it's so much data that I don't know what to look for.
I also looked up information ladyslipper.com and I can't reach the "water quality issues for slipper orchid growers" section.
And the "mineral Nutrition for slipper orchids growers" section states a few values in ppm. ( http://ladyslipper.com/minnut.htm )
I'll put down the values for the elements mentioned on the link above as provided by the water company. The values are give in mg/l though.
PH = 7.5 - 8
NO3 = 2.5 mg/l
NH4 = 0.025 mg/l
Calcium = 78.25 mg/l
Magnesium = 7.4 mg/l
Phosphorus = not mentioned / PO4 = 0.015 mg/l
Sulfur = not mentioned / SO4 = 76mg/l
Boron = 0.025 mg/l
Iron = 0.0081 mg/l
Manganese = 0.0050 mg/l
Zinc = 0.005 mg/l
Copper = 0.0025 mg/l
Molybdenum = not mentioned
I hope that someone can help me out, chemistry classes were a long time ago.
I would like to know how "bad" my tap water is for my plants. And what to look out for when starting with fertilizer.
edit:
Did some google-fu and according to most sites I can state that 1mg/l = 1ppm for water based solutions. So essentialy that would result in calcium and perhaps sulfur to be to high? Any other elements or stuff i need to look out for?