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What is the correct unit for measuring nutrients in hydroponics nutrient solution? |
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a) |
Parts per million |
b) |
Parts per thousand |
c) |
Parts per trillion |
d) |
Parts per gazillion |
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What is the correct unit for measuring nutrients in hydroponics nutrient solution? |
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|
a) |
Parts per million |
b) |
Parts per thousand |
c) |
Parts per trillion |
d) |
Parts per gazillion |
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(a) ppm is a common unit for measuring the concentrations of elements in the nutrient solution. One ppm is one part by weight of the mineral in one million parts of solution. It is also equivalent to 1 mg of something per litre of water |