First Grow: 400 watt HPS, Permafrost, White Widow, White Rhino, Blackjack

itsgrowinglikeaweed

itsgrowinglikeaweed

Well-Known Member
Thats very good that you know the PH of the water going in is 6.5. But at this point you definitely want to check the runoff PH just to be sure. Phosphorus has the smallest "PH window", so at any time you see a P def, you want to check the PH.
What kind of soil are you using? The tendencey of soil in containers is to become more acidic over time especially when you're adding fertilizers.
Don't worry about the rep, I appreciate the thought. But you can't smoke rep! LOL
 
jrp677

jrp677

Active Member
itsgrowinglikeaweed said:
Thats very good that you know the PH of the water going in is 6.5. But at this point you definitely want to check the runoff PH just to be sure. Phosphorus has the smallest "PH window", so at any time you see a P def, you want to check the PH.
What kind of soil are you using? The tendencey of soil in containers is to become more acidic over time especially when you're adding fertilizers.
Don't worry about the rep, I appreciate the thought. But you can't smoke rep! LOL
Click to expand...
I'm using Gardener & Bloome organic potting soil. I was trying to keep the soil from getting too acidic and causing lockup by flushing for a week with plain water but it doesn't seem to be doing the trick. The only way to reduce the acid levels is by flushing correct?
 
itsgrowinglikeaweed

itsgrowinglikeaweed

Well-Known Member
jrp677 said:
I'm using Gardener & Bloome organic potting soil. I was trying to keep the soil from getting too acidic and causing lockup by flushing for a week with plain water but it doesn't seem to be doing the trick. The only way to reduce the acid levels is by flushing correct?
Click to expand...
No that is not correct, there are a number of ways to correct PH in soil.
I use lime for PH+ and vinegar for PH-. Any attempt to alter soil PH should be done gradually though, rapid extreme changes in PH are not tollerated well by the plant.
If you google search for " adjust PH in soil" you will find what you need
 
jrp677

jrp677

Active Member
I just discovered that the nutes I'm using have different basis of measurement between the Veg and Bloom solutions. I've only been giving my plants 1/2 strength solution since they've been flowering.:o:shock: :oops::wall: After looking at the Plant Abuse website IGLAW posted above I'm convinced that I have P deficiency. I fed them this morning with 1/2 strength, should I wait it out until the next time they need to be watered or should I water them again with another 1/2 strength?:confused:
 
itsgrowinglikeaweed

itsgrowinglikeaweed

Well-Known Member
I'd wait a day or two. They can only take up so much at once and you dont want to drown them. Especially since you want to water them enough to get a good runoff sample out the bottom for PH testing.
I dont think that there's any question that it is a P def. They'll be ok once you start feeding the proper doses.
I use happy frog organic bat guano (0-5-0) with humic acid and mycorrhizae during flower. I put it into the flower mix i tranplant my females into. And I mostly just feed them water.
 
jrp677

jrp677

Active Member
itsgrowinglikeaweed said:
I'd wait a day or two. They can only take up so much at once and you dont want to drown them. Especially since you want to water them enough to get a good runoff sample out the bottom for PH testing.
I dont think that there's any question that it is a P def. They'll be ok once you start feeding the proper doses.
I use happy frog organic bat guano (0-5-0) with humic acid and mycorrhizae during flower. I put it into the flower mix i tranplant my females into. And I mostly just feed them water.
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I switched from Bontanicare to Fox Farms nutes and watered today. Bonanicare products are supposedly good but it seems like you have to buy like 4-5 different nutrient solutions to equal the same quality as buying just 1 Fox Farm product. I expect and hope the plants will look better by the next pic update on Tuesday. The run-off PH from the sprouts was 6.5 the run-off PH of the plants in flower was 5.6. What do you think?:-?
 
DEVIOUZ0NE

DEVIOUZ0NE

Active Member
itsgrowinglikeaweed said:
They have "decorative sand" for plants at home depot etc..
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nice idea on that deco sand!!!

itsgrowinglikeaweed said:
Thats very good that you know the PH of the water going in is 6.5. But at this point you definitely want to check the runoff PH just to be sure. Phosphorus has the smallest "PH window", so at any time you see a P def, you want to check the PH.
What kind of soil are you using? The tendencey of soil in containers is to become more acidic over time especially when you're adding fertilizers.
Don't worry about the rep, I appreciate the thought. But you can't smoke rep! LOL
Click to expand...
i think i am for sure having this same problem except im locking out the p because my soil ph is 7..

could you guys relate to my issue as well?

itsgrowinglikeaweed said:
No that is not correct, there are a number of ways to correct PH in soil.
I use lime for PH+ and vinegar for PH-. Any attempt to alter soil PH should be done gradually though, rapid extreme changes in PH are not tollerated well by the plant.
If you google search for " adjust PH in soil" you will find what you need
Click to expand...
vinegar huh, how so and which kinds?? i would like to down my ph to about 6.7 from 7.0.

jrp677 said:
I switched from Bontanicare to Fox Farms nutes and watered today. Bonanicare products are supposedly good but it seems like you have to buy like 4-5 different nutrient solutions to equal the same quality as buying just 1 Fox Farm product. I expect and hope the plants will look better by the next pic update on Tuesday. The run-off PH from the sprouts was 6.5 the run-off PH of the plants in flower was 5.6. What do you think?:-?
Click to expand...
i use fox too its great just be easy with it..

refer back to my thread aswell im having a simliar issue.. but yours seems to be locking out P because the soils is under 6.2 which yours was 5.6?

https://www.rollitup.org/indoor-growing/231404-over-fed-flowering-wk-7-a.html

thx much
 
jrp677

jrp677

Active Member
DEVIOUZ0NE said:
vinegar huh, how so and which kinds?? i would like to down my ph to about 6.7 from 7.0.
White vinegar.
But I'm not sure how to apply it. Do you mix it with water and nutes, if so, at what ratio? I bought some PHup and PHdown, would using the PHup work the same way? Could I gradually over compensate the PHup to achieve the same results?
Click to expand...
 
itsgrowinglikeaweed

itsgrowinglikeaweed

Well-Known Member
jrp677 said:
I switched from Bontanicare to Fox Farms nutes and watered today. Bonanicare products are supposedly good but it seems like you have to buy like 4-5 different nutrient solutions to equal the same quality as buying just 1 Fox Farm product. I expect and hope the plants will look better by the next pic update on Tuesday. The run-off PH from the sprouts was 6.5 the run-off PH of the plants in flower was 5.6. What do you think?:-?
Click to expand...
I use Fox Farm. Which one(s) did you get? And what flavor of Gardener & Bloome do you have. I looked and they have a bunch of different mixes.
If your poured 6.5ph water in and 5.6 came out the bottom that means the soil PH must be LOWER than 5.6. ( the 6.5 water + the actual soil PH averaged out to 5.6) So thats too low. Your P.def is more the result of the soil Ph than the mix up on the nutrient strength.
Time for lime.
I'm not sure how to add it midstream though, I start with it already on the boat lol
???I'm thinking about a teaspoon to a tablespoon to start with??, on top of the soil and wated in. It will slowly raise the PH. Also contains many beneficial trace elements
I use a 1/2 cup fine dolomite lime to about 80 quarts of soil in my mix.
Theres a lot of peat in my mix which turns soil acidic over time. The lime keeps the ph in check. But too much is bad news too.

What's the plan super man? lol
 
DEVIOUZ0NE

DEVIOUZ0NE

Active Member
jrp677 said:
DEVIOUZ0NE said:
vinegar huh, how so and which kinds?? i would like to down my ph to about 6.7 from 7.0.
White vinegar.
But I'm not sure how to apply it. Do you mix it with water and nutes, if so, at what ratio? I bought some PHup and PHdown, would using the PHup work the same way? Could I gradually over compensate the PHup to achieve the same results?
Click to expand...
the ph up would work over time, i would go with the lime method proposed below. sounds simple, and i think it would be more gradual then adding in liquid ph up. funny we are having the same problem kind of.. just vice versa. your down on ph and im up.. your soil reading @ 5.6 IS REALLY prob 5.0 from what im getting.. and my soil reading @ 6.8 is really like 7.8.. way too high.

anyways lets sort these out and get some healthy pics up..

itsgrowinglikeaweed said:
I use Fox Farm. Which one(s) did you get? And what flavor of Gardener & Bloome do you have. I looked and they have a bunch of different mixes.
If your poured 6.5ph water in and 5.6 came out the bottom that means the soil PH must be LOWER than 5.6. ( the 6.5 water + the actual soil PH averaged out to 5.6) So thats too low. Your P.def is more the result of the soil Ph than the mix up on the nutrient strength.
Time for lime.
I'm not sure how to add it midstream though, I start with it already on the boat lol
???I'm thinking about a teaspoon to a tablespoon to start with??, on top of the soil and wated in. It will slowly raise the PH. Also contains many beneficial trace elements
I use a 1/2 cup fine dolomite lime to about 80 quarts of soil in my mix.
Theres a lot of peat in my mix which turns soil acidic over time. The lime keeps the ph in check. But too much is bad news too.

What's the plan super man? lol
Click to expand...
nice advice..

itsgrowinglikeaweed said:
A few drops of vinegar will lower a gallon of 7ph water to about 6.6. I use organic apple cidar vinegar.
Click to expand...
what about white distilled vinegar?

would this help to adjust my soil from 8 to 7ph.. how would i go about this? flush and than retest if its not stable should i add the couple drops of vinegar to my waterings and hope it lowers over a couple days??
Click to expand...
 
jrp677

jrp677

Active Member
I use Fox Farm. Which one(s) did you get? And what flavor of Gardener & Bloome do you have. I looked and they have a bunch of different mixes.

I got the FF Grow Big 6-4-4 and FF Tiger Bloom 2-8-4. Here's a pic of the Soil packaging. As I thought more about it remembered that this wasn't the soil I started out with. Only the sprouts are planted in the G & B soil. When I planted the plants that are currently flowering I used Miracle Grow which was probably my first mistake.



Time for lime.
I'm thinking about a teaspoon to a tablespoon to start with??, on top of the soil and wated in. It will slowly raise the PH. Also contains many beneficial trace elements
I use a 1/2 cup fine dolomite lime to about 80 quarts of soil in my mix.
Theres a lot of peat in my mix which turns soil acidic over time. The lime keeps the ph in check. But too much is bad news too.

So you mix the lime into your soil or do you put it on top like you suggested to me? Should I still use sand and would that go on top of the lime or do I put the lime on top of the sand?

What's the plan super man? lol

My plan is to take your advice and try to get this in check ASAP. Should I put lime on the sprouts even though there's currently not a problem?

anyways lets sort these out and get some healthy pics up..

I can't believe how hard it is to grow a weed! I've learned a lot of hard lessons along the way. Mistakes I won't make again. I really appreciate everyone's help and support!
 

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itsgrowinglikeaweed

itsgrowinglikeaweed

Well-Known Member
1) yeah the Miracle Grow is no good. You want to stay as organic as you can I think.
2) I premix lime into my soil. Because of lessons previously learned. But you can add it on top and water it in as i mentioned. This is not something I have done. You can also use hardwood ash for this. Potash will raise the PH of soil as well as providing an organic source of potasium. How much to use? I have no idea, sorry. Again its not somthing I've done. Just what I've read about. I dont know anything about the chemical PHup and ph down they have at the hydro store. But there are plenty of natural and organic ammendments you can use. I think the lime is best.
3) No, do not put lime on the sprouts. They should be fine in the Gadener and Bloom. The MG soil is probably what dropped your PH. Check that....the MG DID cause your PH to drop. I'm sure of it.
And heres the other thing...stop feeding the plant with the PH problem. Its not using them and the nutes will build up in the soil. Then when the PH gets corrected your plant could get burned by the excess of ferts in the soil. Besides if its in MG you might not need to feed it anything anyway.
MG is unpredictable.
Its only hard to grow weed if you are trying too hard to grow weed. If you let the weed grow itself as mother nature intended it is quite easy.
The bugs? Yeah that's a hard part true. But your other problems can be blamed on MG. Its really not that hard.
 
jrp677

jrp677

Active Member
I just topped my sprouts. According to the topping link IGLAW posted above I should expect 4 top colas. I can't say it wasn't hard, I felt bad cutting my girls in half but it will hopefully buy me a couple of extra weeks while I'm waiting to harvest the perpetual problem plants. Pic update tomorrow, PH issues.....its not pretty.
 

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