npk percents

Ok so Im trying to wrap my head around the npk ratios. So it the npk percents per measurement? For example the npk ratio for botanicare would be per ounce?

its per their dosage i believe. check the instructions

Not sure i understand ur question.....the npk numbers are a percentage say 3-2-4 3%n 2%p 4%k................But if u want the real elemental ratio you need to subtract the oxygen from p and K. So multiply 2 x .43=p, and 4 x .78 =k.....Nitrogen will stay the same, now add a couple zeros behind those numbers now you have a an about ppm ratio.

cool info! but not sure thats what he wanted.

drolove said:

its per their dosage i believe. check the instructions

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what if its got three different levels. early mid and late. Would the percentages still be the same for all three stages?

Tiffay2180 said:

what if its got three different levels. early mid and late. Would the percentages still be the same for all three stages?

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the ratio of npk would remain the same. only the ppm would change.

NPK measures percentages of all nutrients in the solution. It has nothing to do with concentration of the fertilizer, and everything to do with the ratios of Nitrogen, Phosphorous, Potassium and other micro-nutrients (like calcium, magnesium, iron, copper, zinc, boron, etc. )

So, a fertilizer that is 20-20-20 is not necessarily "stronger" then a fertilizer that is 10-10-10... it only has proportionately less of the other micro nutrients required to sustain plants.