New Grower Dutch pro autoflower soil ph
- Thread starter TRIPDOG
- Start date
Is this your soil PH, run off PH, or PH of your feed?
Hi. Thanks for replying. On the manufacturers web site it states the nutrient mix (grow a and b) should be adjusted to ph5.5 to 6.5 with an optimum pH of 5.8. I thought for soil nutrients should be adjusted to about 6.2. Hope this makes sense.
illbethere
The pope of mango
Soil ph should be between 6.0 and 7.0, I think 6.5-6.7 is optimal. But hey what do I know I don't even use a ph-meter. 
No problem bro. I should imagine that the manufacture would put that as an outside guide for people who use those nutes in hydro aswell. I'd stick with around 6.2 bro as long as your plants are healthy :Sharing One:
Hi thanks all. Cgr I thought that might be the case but these are the new autoflower nutes. Thought the low recommended pH might be to help with cal mag issues or something. Do you think it could be because of light mix soil?
Hello,
I do not think low PH helps with calmag defficiencies and they do not know what soil you would use.
Nutrients are available in different ranges depending in what form they come. Only manufacturer knows what is put in and only they can recommend, especially if product is new and there is not much experience with it around. Roots like acidic soil but nutrients become less available when acidity rises, if not chelated. Maybe Dutch Pro uses chelated stuff and PH is not so important, who knows. But generally, 5,8 to 6,5 is recommended area.
Mostly ph goes down with time in light mixes, but that depends on what is inside. If limed, ph does not drop so much or even rise.
I would go with ph 6,5 for two reasons:
- ph in soil will most probably drop with time
- to use as little acids as possible, because they accumulate in soil and make it more acidic in the future.
Do not forget PH is one of the toughest problems in growing, so you will most probably not get simple answer to your question.
Good Luck!
Thanks gonzo for your answer. I'm still trying to get to grips with pH but hopefully I will get there. I think since I have had my pH pen I may have been trying to be too accurate and should let my pH vary a bit more. Your answer has made things a bit clearer.
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