Growth spurt done, time for a change?

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stealthgrow101

Member

Mar 3, 2011

• #1

I have my 5 plants under a 400 HPS on a 12-34-12 better bloom nutrient and they're about 3 1/2 weeks into 12/12, and the stretch is mostly finished now. Just hoping for some recommendations on NPK ratio's for finishing flowering, and possibly brands, +rep, cheers!

 

homebrewer

Well-Known Member

Mar 3, 2011

• #2

Your 12-34-12 is probably fine for the later stages though during your stretch, you probably could have used more nitrogen than that formula is supplying.

 

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stealthgrow101

Member

Mar 3, 2011

• #3

I had a veg formula with a higher N but switched to the 12-32-12 as soon as 12/12 was induced. should I switch again?

 

homebrewer

Well-Known Member

Mar 3, 2011

• #4

stealthgrow101 said:

I had a veg formula with a higher N but switched to the 12-32-12 as soon as 12/12 was induced. should I switch again?

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What is the NPK value of your veg formula?

 

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stealthgrow101

Member

Mar 3, 2011

• #5

17-15-17 was the one I used in veg before switching onto the 12-32-12

 

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stealthgrow101

Member

Mar 3, 2011

• #6

Here is a pic of them today as well...

 

homebrewer

Well-Known Member

Mar 3, 2011

• #7

stealthgrow101 said:

17-15-17 was the one I used in veg before switching onto the 12-32-12

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If it were me, I might go 2 parts veg formula and 1 part flower formula during the first few weeks (maybe even half and half). But that would also be dependent on how the lower leaves look. If you don't have yellowing lower leaves, you may be fine with your 12-32-12 during all of flower.