Simon Cole
Member
Hello my friends,
I just wanted to check my maths before I order them later today.
e.g. Zn 15% EDTA: 1 g in 1 litre water = 1000 ppm * 0.15 = 150ppm
ergo 6.67g Zn 15% = 1000 ppm l-1
Also, with KNO3, if I want the ppm of N and K separately, then I presume it is: molecular mass/atomic mass * ppm KNO3 = ppm K or N.
Many thanks
@Zeus. Please could you show me where to find the fertiliser calculator that you use?
I just wanted to check my maths before I order them later today.
e.g. Zn 15% EDTA: 1 g in 1 litre water = 1000 ppm * 0.15 = 150ppm
ergo 6.67g Zn 15% = 1000 ppm l-1
Also, with KNO3, if I want the ppm of N and K separately, then I presume it is: molecular mass/atomic mass * ppm KNO3 = ppm K or N.
Many thanks
@Zeus. Please could you show me where to find the fertiliser calculator that you use?