you want the ph to change between 6.2 and 6.7 so if its 6.7 i would add 6.2 the next feedings
your ppm doesn't look that bad, my ppm still coming out at 2000+ and i have no visible burns
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you want the ph to change between 6.2 and 6.7 so if its 6.7 i would add 6.2 the next feedings
your ppm doesn't look that bad, my ppm still coming out at 2000+ and i have no visible burns
I am not a expert in this area but your RH is low. I have just learned about vapor pressure deficit and how it can adversely effect the growth of plants.
Here is a damn good read on VPD with some awesome charts:
http://www.just4growers.com/stream/t...ur-plants.aspx
Here is a damn good read on VPD with some awesome charts:
http://www.just4growers.com/stream/t...ur-plants.aspx
T
The_Core
Ok so its better to do less PPM and fertilize 3 out of 4 waterings rather then hit the plant with max ppms and then water 2 times. I could understand how it would be better to keep constant nutes going instead of one big dose. I have not had any leaf tips burn. I just checked my plants several hours after feeding, Seems to have taken the 600 PPMs no problem. Guess I will see in the morning. I am trying to figure out why I cant get the PH from 6.7 to 6.5. I watered 6.2 in and it only dropped it from 6.8 to 6.7 damn stubborn soil. I do wonder if I could have watered with 1000 ppms today and had no burn. Probably not. Going from 330 to 1000 is a big jump I think.
Do you think I should not only base PPMs off of what week of growth the plant is on, but also the size of the plant?
T
The_Core
Hey lulzz, I wont worry too much about runoff PPMs anymore. I will focus more on PH.
My PH was 6.8 last runoff test. I watered today with 6.2 hoping to drop it to 6.5, Instead it only went to 6.7
The issue is that If lets say next time I go 6.0 or 5.8, just to get to 6.5 runoff. Will that mean the soil is 6.5 or just the runoff? I dont want to water 5.8 into the soil, turn the soil to 5.8 and have 6.5 runoff......See what I am saying?
Should I stick to 6.5 PH water in regardless of what the runoff PH says?
T
The_Core
Thanks bennyweed. I will give that a read. My RH has been hovering at 30-45% but nothing higher. Do you think my RH is low enough to be effecting the plant that much?
T
The_Core
Hey bennyweed1, That was a broken link....
if your ph ain't raising much by itself, just keep feed with 6.2 like normal until it lowers, if it doenst help enough and it keeps raising then flush it with 6.2 water until the runoff is where you like, then you also flush out used salts, when done flushing you add water with new nutes in
thats what im gonna do to lower my ec next time
T
The_Core
Ok I will water 6.2 again next time. If it still holds at 6.7 I will leave it alone. If it has gone up past 6.7, I will immediately mix up 6.5 and flush my soil with gallons of water to get it to 6.5, As long as I am still in veg stage I will run 100 gallons of water through my container to get it to drop to 6.5, I am not going to let high PH ruin this grow. I will push whatever amount of water through my 2 gallon grow bag as required. I am not stressing too bad, 6.7 is acceptable. I will see how my plant reacted to my feeding in the morning.
seems like a good plan
if it keeps raising im sure that 1 or 2 gallons would be more than enough to correct the ph, i corrected mine from 5.5 to 6.5 with just 2 normal waterings under 0.5 gallons each at 7.3 in 11 L pots
every plant/strain can differ to nute sensitivity.
but at week 4 its more than ready to start full nutes, unless you have some really good soil loaded with nutes already.
your plant had a definite deficiency and it would have taken the 1000ppms,
and, i wouldn't worry too much about soil runoff unless your exp lock out issues which only comes with a big Ph prob or too hi PPMs for too long.
doing lots of soil ph testing with a lot of runoff is only depleting your soil of needed nutes,
if you really want too check soil ph you need a kelway Ph soil tester, but again your at the early gro s stage
you really don't need to concern yourself with soil testing runn off unless you have a prob.an
d probs with salt build up doesn't arise if at all until much later in the gro.... usually in bloom if your slammin the ppms.
and yes.. I prefer smaller PPMs and more feedings as opposed to big slams.
thats just me tho...
every now and then I hit em @1200 to make sure the nute tank is topped off so to say.
on your Rh, i had VPD @46% Rh.
BUT
i'm running sealed w/Co2.
never had it the 3yrs Ive been indoors till I went sealed/Co2.
but... in veg you need to keep RH around 70% to get the best bang for your buck
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My bad, I musta fat fingered the copy paste job I attempted. Here we go again:
http://www.just4growers.com/stream/...-deficit-the-hidden-force-on-your-plants.aspx
http://www.just4growers.com/stream/...-deficit-the-hidden-force-on-your-plants.aspx
T
The_Core
every plant/strain can differ to nute sensitivity.
but at week 4 its more than ready to start full nutes, unless you have some really good soil loaded with nutes already.
your plant had a definite deficiency and it would have taken the 1000ppms,
and, i wouldn't worry too much about soil runoff unless your exp lock out issues which only comes with a big Ph prob or too hi PPMs for too long.
doing lots of soil ph testing with a lot of runoff is only depleting your soil of needed nutes,
if you really want too check soil ph you need a kelway Ph soil tester, but again your at the early gro s stage
you really don't need to concern yourself with soil testing runn off unless you have a prob.an
d probs with salt build up doesn't arise if at all until much later in the gro.... usually in bloom if your slammin the ppms.
and yes.. I prefer smaller PPMs and more feedings as opposed to big slams.
thats just me tho...
every now and then I hit em @1200 to make sure the nute tank is topped off so to say.
on your Rh, i had VPD @46% Rh.
BUT
i'm running sealed w/Co2.
never had it the 3yrs Ive been indoors till I went sealed/Co2.
but... in veg you need to keep RH around 70% to get the best bang for your buck
Ok from now on I will water with PH 6.5 regardless of runoff, Unless I see lockout or some PH related problem.
My plant took the 600 PPM from last night no problem. No wilting or over-fertilization. No curling of leaves or brown tips. Next watering will be 900 or 1000 PPM for sure. I had no idea my plant could take such high PPMs already. I was starving my plant. Oh well live and learn. The plant seems happy so am I.
As for RH, it stays between 30-45%. I know that is not optimum for VEG but I cant really run and humidifier at the moment. I guess I can put a wet towel in the room and try to raise it that way.
I am going to push my plant until the tips showing slight nutrient burn then dial it back and water each time with biobizz. My plant is still growing very low and bushy. On the 16th I am going to go 12/12 regardless of size. That will be a 42 day VEG. That is exactly 6 weeks of veg.
T
The_Core
I just read the article on VPD....I believe that is my problem. After watering in and foliar spraying for magnesium deficiency. And seeing no progress, I believe that VPD is the issue. I will raise my RH to 60% and see what happens. Thanks so much for the info I saved that link.
ok from now on I will water with PH 6.5 regardless of runoff, Unless I see lockout or some PH related problems
between 6.0-6.4 are what you want for soil,
6.4 is my target point.
My plant took the 600 PPM from last night no problem. No wilting or over-fertilization. No curling of leaves or brown tips. Next watering will be 900 or 1000 PPM for sure. I had no idea my plant could take such high PPMs already. I was starving my plant. Oh well live and learn. The plant seems happy so am I.
thats what it looked like to me...a hongry lil fella
BUT
an under fed plant can be easily fixed,
a plant fried by over nutes isn't a pretty pic.
I am going to push my plant until the tips showing slight nutrient burn then dial it back and water each time with biobizz. My plant is still growing very low and bushy. On the 16th I am going to go 12/12 regardless of size. That will be a 42 day VEG. That is exactly 6 weeks of veg.
ok from now on I will water with PH 6.5 regardless of runoff, Unless I see lockout or some PH related problems
between 6.0-6.4 are what you want for soil,
6.4 is my target point.
I was starving my plant. Oh well live and learn. The plant seems happy so am I.
that's what it looked like to me...a hongry lil fella
BUT
an under fed plant can be easily fixed,
a plant fried by over nutes isn't a pretty pic.
As for RH, it stays between 30-45%. I know that is not optimum for VEG but I cant really run and humidifier at the moment. I guess I can put a wet towel in the room and try to raise it that way.
I am just learning about VPD myself,
30% is very low and i recently read were other folks were having severe issue at 30%,
it could be that VPD was part of the prob with nutes not being taken in, but they need more for sure.
wet towels on the floor, i read where you put a towe in a bucket of water and let it wick water up.h
ere's a thread, theres several low Rh posts in the forum right now with lots of insight to fixing vpd
https://www.icmag.com/ic/showthread.php?t=276985
I am going to push my plant until the tips showing slight nutrient burn then dial it back and water each time with biobizz. My plant is still growing very low and bushy. On the 16th I am going to go 12/12 regardless of size. That will be a 42 day VEG. That is exactly 6 weeks of veg.
750ppm for multi back to back feeds is a good starting point,
if your plants are happy its all good then.
you don't have to push them to the point of tip burn but it good know what your plants will take
good luck with that azucar,
I'm anxious to see what it does in bloom and depending i may pop mine next run
honestly i had know idea what his floor was made of,
and yes your are correct... of course it will have a LOT more surface area etc etc
that's one of the things I did in my 14x20 bloom room in the link i gave.
it was a quick fix but in the long run it has potential bigger downsides.
fostering a perfect enviroment for molds is one of them.
AND
having to slog thru water everywhere with wet feet, working with all the electrical things in a 6000w gro like mine
or a 1 bulb cfl set,
up all the while being a perfect conductor for electricity isn't a good thing... eh
not everyone wants to do what i did...
i didn't even want to do what i did
another thing,
this had to be done 4Xs a day minimum and was a fooking mess!.
if the towel wicking water in a bucket would have worked i would have gone that route
lol...its a lot easier+cleaner having to put more water in the bucket... yes?
there's more than one way to get your Rh up,
the more options available to you to fix a prob can only be an asset lullz,
more options can only help you make a better, more informed decision
just my
and yes your are correct... of course it will have a LOT more surface area etc etc
that's one of the things I did in my 14x20 bloom room in the link i gave.
it was a quick fix but in the long run it has potential bigger downsides.
fostering a perfect enviroment for molds is one of them.
AND
having to slog thru water everywhere with wet feet, working with all the electrical things in a 6000w gro like mine
or a 1 bulb cfl set,
up all the while being a perfect conductor for electricity isn't a good thing... eh
not everyone wants to do what i did...
i didn't even want to do what i did
another thing,
this had to be done 4Xs a day minimum and was a fooking mess!.
if the towel wicking water in a bucket would have worked i would have gone that route
lol...its a lot easier+cleaner having to put more water in the bucket... yes?
there's more than one way to get your Rh up,
the more options available to you to fix a prob can only be an asset lullz,
more options can only help you make a better, more informed decision
just my
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T
The_Core
ok from now on I will water with PH 6.5 regardless of runoff, Unless I see lockout or some PH related problems
between 6.0-6.4 are what you want for soil,
6.4 is my target point.
My plant took the 600 PPM from last night no problem. No wilting or over-fertilization. No curling of leaves or brown tips. Next watering will be 900 or 1000 PPM for sure. I had no idea my plant could take such high PPMs already. I was starving my plant. Oh well live and learn. The plant seems happy so am I.
thats what it looked like to me...a hongry lil fella
BUT
an under fed plant can be easily fixed,
a plant fried by over nutes isn't a pretty pic.
I am going to push my plant until the tips showing slight nutrient burn then dial it back and water each time with biobizz. My plant is still growing very low and bushy. On the 16th I am going to go 12/12 regardless of size. That will be a 42 day VEG. That is exactly 6 weeks of veg.
ok from now on I will water with PH 6.5 regardless of runoff, Unless I see lockout or some PH related problems
between 6.0-6.4 are what you want for soil,
6.4 is my target point.
I was starving my plant. Oh well live and learn. The plant seems happy so am I.
that's what it looked like to me...a hongry lil fella View Image
BUT
an under fed plant can be easily fixed,
a plant fried by over nutes isn't a pretty pic.
As for RH, it stays between 30-45%. I know that is not optimum for VEG but I cant really run and humidifier at the moment. I guess I can put a wet towel in the room and try to raise it that way.
I am just learning about VPD myself,
30% is very low and i recently read were other folks were having severe issue at 30%,
it could be that VPD was part of the prob with nutes not being taken in, but they need more for sure.
wet towels on the floor, i read where you put a towe in a bucket of water and let it wick water up.h
ere's a thread, theres several low Rh posts in the forum right now with lots of insight to fixing vpd
https://www.icmag.com/ic/showthread.php?t=276985
I am going to push my plant until the tips showing slight nutrient burn then dial it back and water each time with biobizz. My plant is still growing very low and bushy. On the 16th I am going to go 12/12 regardless of size. That will be a 42 day VEG. That is exactly 6 weeks of veg.
750ppm for multi back to back feeds is a good starting point,
if your plants are happy its all good then.
you don't have to push them to the point of tip burn but it good know what your plants will take
good luck with that azucar,
I'm anxious to see what it does in bloom and depending i may pop mine next run
So your saying don't push until the leaf tips burn, Just shoot for 750 ppm every watering. I can do that.
PH 6.4 is for soilless right? Even though I am using commercial garden soil the fact I have perlite and vermiculite makes it soilless right?
So should I run lower PH waterings until I get a runoff of 6.4 or just start running 6.4 into the soil and not worry about runoff?
I honestly believe my low feedings of 330 PPM including the VPD or LOW RH is why my plant is growing so slow and staying so short. I bet if I had pushed harder ppms and had at least 50 RH my plant would be rocking. Oh well, this is a good learning experience for the next grow.
Thanks for the link as well, I am going to make it my top priority to get the RH raised up. I already tried a wet towel and my RH still would not climb above 45% so more drastic measures may be used.
Right now I am using a 2 foot 8 bulb T-5 for veg. Its working spectacular. I am considering using the T-5 for flower with 3000k bulbs, or I might hook up the HID and run 400 watt ushio super HPS. Decisions, Decisions.
I dont know everything we are talking about here because at the end of the day, there are just to many damn post to catch up on and read in this thriving lil community.
But from the sounds of it....sounds like we are talking about raising the humidity which I originally commented about early regarding my new found lover: VPD.
As I am too going through the motions of dialing this aspect into play, I am faced with the alarming and controversial issue of how to do the damn thaaannng.
I am drawing up the idea of an ultrasonic mister/fogger.
Now I know not everyone has the same gear, but for my particle situation I wanna take a 5 gallon bucket, drill/cut two 6" holes into the prick in a straight line, connect inline ducts to it with with either passive or forced flow, fill it with water, drop a 5 head ultrasonic fogger into it hooked up to a controlling device, install a float valve, and forget'aboutit
Doing that or either just dumping buckets of water onto the floor, and leaving the faucet running in the upstairs bedroom because that is always a good idea.
But from the sounds of it....sounds like we are talking about raising the humidity which I originally commented about early regarding my new found lover: VPD.
As I am too going through the motions of dialing this aspect into play, I am faced with the alarming and controversial issue of how to do the damn thaaannng.
I am drawing up the idea of an ultrasonic mister/fogger.
Now I know not everyone has the same gear, but for my particle situation I wanna take a 5 gallon bucket, drill/cut two 6" holes into the prick in a straight line, connect inline ducts to it with with either passive or forced flow, fill it with water, drop a 5 head ultrasonic fogger into it hooked up to a controlling device, install a float valve, and forget'aboutit
Doing that or either just dumping buckets of water onto the floor, and leaving the faucet running in the upstairs bedroom because that is always a good idea.
T
The_Core
I have a digital lumatek switchable with super lumens. 400/600/1000/SUPER LUMENS. One plant, small grow cab, 400 should be good right? I could go 600 even. I wont push 1000 watts for one plant. No way......What do you think?
