Basic questions about soil and nutrients

Hi!

I am new in this lovely site, so feel free to move this topic if required... Also, I'm from Argentina so please be patient with my English xD.

I am going to start my third grow some weeks from now and I want to change my nutrients/soil plan (I don't like the nutrients brand I'm using currently because it's ultra-super concentrated and kind of hard to dose, also it's liquid and doesn't have expiration dates written so...). I was thinking of going with some kind of all in one solution, maybe mineral as i have little space (54*56cm in flowering room) and need to maximize production since I'm Sir Smokealot.

In my country I can get the Green House Powder Feeding, and since I use soil I have two options to combine them: a light soil or a prefertilized one (duh). Which leads me to some questions:

1) If i use a light soil with a 5.5ph, would this be very acidic for the pre-flowering transplant and the flowering period in general(althought it would be fertilized every week, of course)?
2) If i use a prefertilized soil with a 6.0ph in order to reduce fertilizer costs when vegging (combine a prefertilized soil with only the flowering solution), will this soil be too full of Nitrogen for the flowering period? Or is it okay and i'm over-thinking it (wouldn't be the first time xD)? Also: could I use 5.5ph light soil for early stage and 6.0ph prefertilized soil for vegging (being the same brand of soil), or will this confuse (?) the plant?

I think both questions are also apliccable if I choose to use the GreenHouse Bio line (i'm not totally decided on this matter neither, he).

Cheers and thanks in advance for all your help!

Both of those PHs seem fine to me. You're likely overthinking this like you said.
Ever think to mix both types together and use it all along?

MustGro said:

Both of those PHs seem fine to me. You're likely overthinking this like you said.
Ever think to mix both types together and use it all along?

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thanks so much for your response! so i guess both ph levels are ok for all the stages of the plant; that's great, thank you .
to answer your question: i was thinking more of using the light soil for the first little pot and the fertilized one for the rest of the grow... if there is a real advantage in using light soil for early stages (quicker development?). but as you can see, i'm not really sure about anything xD.

but you made it very clear, thanks . i have just one more question, if i can borrow more of your time: if i choose to use the prefertilized soil, do you also think it wouldn't matter if i use the same prefertilized soil (with lots of N) for the last transplant, just before the 12/12 schedule light? or should i change to the light soil?

edit: maybe, following your suggestion of mixing the two soils, i could combine them so i have more light soil on the early stage and on the pre-preflowering transplant, and more fertilized soil on the vegging stage..?

If you're going to do a transplant around the time you flip then I'd try to go for the hotter soil then. Most feed charts have the PPM climb in the first 4 weeks of flower and max around weeks 5 or 6, then they pull out some PPMs every week. Definitely use the prefertilized soil for flower but you could use it in veg too if they're big enough to take the nutes. N is good for your plants in veg and flower. They'll never yield well if they're N deficient in flower.

MustGro said:

If you're going to do a transplant around the time you flip then I'd try to go for the hotter soil then. Most feed charts have the PPM climb in the first 4 weeks of flower and max around weeks 5 or 6, then they pull out some PPMs every week. Definitely use the prefertilized soil for flower but you could use it in veg too if they're big enough to take the nutes. N is good for your plants in veg and flower. They'll never yield well if they're N deficient in flower.

Click to expand...

Understood! Thank you so much for your help, you were super clear