I'm studying the nutrient uptake by plants in hydroponics. I found that in many literatures, the uptake rate was expressed as xx (mg m-2 hour-1). Does anyone know what does that per square meter mean? Is it per leaf area or per root area? You can find similar expression in this paper link, in Table 1., the uptake was expressed as xx mol m-2 s-1
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Interesting. For accuracy’s sake, could you render the formula more precisely, like by using `²` or ``? – dakab Jun 01 '16 at 08:19
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Can you link to an example? – Graham Chiu Jun 01 '16 at 16:33
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Probably leaf area, but I've never found hydroponics adequately riveting to really get into it. – Ecnerwal Jun 01 '16 at 18:44