Ppm nute questions

when you first start say first part of Veg what would the level of ppm would you want exactly? and, what would the increase be till Flowering? and the first change in water for Flowering what would the ppm start at? so it would slowly go up what does it look like in numbers? I do realize that it might be diff for diff people cause of the system they use, lets say for a connected dwc 6 pots 4-6 gal tank?
this is just an example and not accurate but my run looks like this using General Hydro in soil. Advanced Nutrients Sensi (which ive run and will switch too later) really doesnt vary much in ppm which i like, 1 recipe start to finish. Also a friend of mine is using GH 3 part under similar conditions in coco. I generally flush on every 3rd or 4th watering to prevent salt build up...

seedlings/sprouts - water (200ppm)
early growth - gro nutrients (400-500ppm)
strong veg - gro nuts (800-900ppm)
early bloom - (1200-1300 ppm) **sometimes depending on the strain i'm 1 behind or skip this one
strong bloom - (1500-1800 ppm) CO2 is a big factor here as well as strain but this might be kind of high... IDK second opinion?
ripen - (600-800 ppm) your almost done so there not feeding so heavy anymore
flush - water (200-300ppm) might stay with the sugars or add a flushing agent

i hope this helps and mind you it's not accurate exact or a science just a little something i've noticed using GH.
 

homebrewer

Well-Known Member
PPM is misleading. There are 3 different PPM scales so when someone says they run XXX ppm for this amount of time, that doesn't mean they're on the same scale as you. EC is universal and in my opinion, an EC of 1.5 - 2 is about as high as you want to go. You can't force your plants to use everything you're feeding it without burning your plants or wasting your nutes. Concentrate on balanced NPK ratios and complete nutrition and your plants will pull out what they need when they need it. Less food can result in bigger yields.

http://www.hydroponics.net/learn/debate_over_ec_and_tds.asp
 
Top