so i found out that the N-P-K readings on the fert bottle are not really what one should be considering, but rather the TDS, which is measured in PMM. nobody ever told me this! :shocked: :shocked:
i located a PPM fert calcualator on the web http://www.firstrays.com/fertcalc.htm and determined that i am feeding my ladies about 552 ppm of TDS (total desolved solids) at meal time.
Botanicare Pure Blend Pro Grow Veg is what i am using. it has an NPK reading of 3-1.5-4, a recomended use of 1 ounce (30 ml) ((6 tsp)) per gallon. this calculates to:
TDS
PPM Nitrogen- 237
PPM Phosphorus- 52
PPM Potassium- 263
= 552 ppm of TDS
my gurls are in full veg and i was wondering if that is a good amount of TDS for them? in just a few minutes of research i found varying opinions, from 100 all the way to 1000 PPM of TDS.
using the ppm calculator you can see what amounts of TDS your plants are recieving (if this is not already known) by punching in your ferts NPK value along with the amount of tsp's per gallon.
you may also work backwards by choosing a desired TDS, along with your fert's NPK reading, to determine how many tsp are necessary to successfully reach the desired TDS.
so, what were your results?
for experienced growers, what has worked for you in the past?
any info would be great, and thanks for your time.
eace:
i located a PPM fert calcualator on the web http://www.firstrays.com/fertcalc.htm and determined that i am feeding my ladies about 552 ppm of TDS (total desolved solids) at meal time.
Botanicare Pure Blend Pro Grow Veg is what i am using. it has an NPK reading of 3-1.5-4, a recomended use of 1 ounce (30 ml) ((6 tsp)) per gallon. this calculates to:
TDS
PPM Nitrogen- 237
PPM Phosphorus- 52
PPM Potassium- 263
= 552 ppm of TDS
my gurls are in full veg and i was wondering if that is a good amount of TDS for them? in just a few minutes of research i found varying opinions, from 100 all the way to 1000 PPM of TDS.
using the ppm calculator you can see what amounts of TDS your plants are recieving (if this is not already known) by punching in your ferts NPK value along with the amount of tsp's per gallon.
you may also work backwards by choosing a desired TDS, along with your fert's NPK reading, to determine how many tsp are necessary to successfully reach the desired TDS.
so, what were your results?
for experienced growers, what has worked for you in the past?
any info would be great, and thanks for your time.
eace: