Changing the NPK

Cubalibre · Mar 23, 2009

Im currently useing 5-1-1 on my month old plants. When should I change the numbers? And how can I raise the PH?

longlizard · Mar 24, 2009

Aim for pH 6-7 though out the plants life. Young plants and nutrients, little plants require little nutrients. The flowering stage, either natural or photo period enduced is time to change NPK. Go to low N with higher P and K, during this time.

lennyo · Mar 24, 2009

Cubalibre said:
Im currently useing 5-1-1 on my month old plants. When should I change the numbers? And how can I raise the PH?

Change the PK(up) just before flowering and buy some Ph UP from your Hydro shop.

longlizard · Mar 24, 2009

lennyo said:
Change the PK(up) just before flowering and buy some Ph UP from your Hydro shop.

You don't want to raise your pH unless below 5.5, marijuana grows best with a slightly lower Ph.

http://www.a1b2c3.com/drugs/mjgrow9f.htm
:roll:

GrowTech · Mar 24, 2009

Soil should be around 6.5pH
Hydro should be around 5.8pH

You can change your NPK ratio with the Dutch Nutrient Formula 6 pack

You can purchase pH up/pH down from Home depot for about $8.00 per half gallon.

longlizard · Mar 24, 2009

GrowTech said:
Soil should be around 6.5pH
Hydro should be around 5.8pH

You can change your NPK ratio with the Dutch Nutrient Formula 6 pack

You can purchase pH up/pH down from Home depot for about $8.00 per half gallon.

Thank you, for the correction, I was reading that on the link I posted. My Bad

Changing the NPK

Cubalibre

Active Member

longlizard

Well-Known Member

lennyo

Well-Known Member

longlizard

Well-Known Member

GrowTech

stays relevant.

longlizard

Well-Known Member

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