Leaf's tips STILL burning and dying. Could it be soil's PH?

[Schwag Bag]

Ok so, my leaves are still turning yellow and dying at the tips before falling off as seen in the picture. It's not affecting the whole plant, in fact most of it is green and they are all still growing.

I would like to put a stop to this finally! I thought it was nute burn, so I stopped feeding them and gave them only PH'd water for over a week and have only been giving them half the dosage.

So what I am wondering is, could this be caused by a low PH in soil? I checked the run off and it was at 5.8-6.0. So does that mean my soil as a low PH? I have treated it twice with dolomite lime, giving them about 6-7 tbl spoons each overall. Should I treat again with dolomite lime until the ph goes up? Any help is appreciated.

PS: If you want current pics just say so and I will snap some tomorrow for ya.

 

[nick88]

Ok so, my leaves are still turning yellow and dying at the tips before falling off as seen in the picture. It's not affecting the whole plant, in fact most of it is green and they are all still growing.

I would like to put a stop to this finally! I thought it was nute burn, so I stopped feeding them and gave them only PH'd water for over a week and have only been giving them half the dosage.

So what I am wondering is, could this be caused by a low PH in soil? I checked the run off and it was at 5.8-6.0. So does that mean my soil as a low PH? I have treated it twice with dolomite lime, giving them about 6-7 tbl spoons each overall. Should I treat again with dolomite lime until the ph goes up? Any help is appreciated.

PS: If you want current pics just say so and I will snap some tomorrow for ya.

Flush with at least 3gals water for each gal of container size, then check run off. 5.8to6 is toolow for soil. What kind of soil and nutes are you using

 

[jawbrodt]

Yeah, 5.8 is a little low. If your pouring in 6.5 and getting 5.8 on the runoff, that tells you that your soil PH is lower than 5.8, probably close to 5.0. You probably have some nutelock going on, or maybe even just plain underfeeding, hard to say. When you "treated them with lime" did you flush, or did you just give them a heavy watering, mixed with the lime? Whenever I flush for PH problems, I use water PH'ed to 6.8 and keep flushing til my runoff comes out close to that(at least 6.6). Then, I know the PH is okay, rather than hoping it's okay. I usually end up using about 6 gallons for my 3 gallon pots, and it works perfectly. But, the only way to know for sure, is to have your meters handy. I also make sure the runoff PPM is below 150, and flowing almost clear.

 

[nick88]

Yeah, 5.8 is a little low. If your pouring in 6.5 and getting 5.8 on the runoff, that tells you that your soil PH is lower than 5.8, probably close to 5.0. You probably have some nutelock going on, or maybe even just plain underfeeding, hard to say. When you "treated them with lime" did you flush, or did you just give them a heavy watering, mixed with the lime? Whenever I flush for PH problems, I use water PH'ed to 6.8 and keep flushing til my runoff comes out close to that(at least 6.6). Then, I know the PH is okay, rather than hoping it's okay. I usually end up using about 6 gallons for my 3 gallon pots, and it works perfectly. But, the only way to know for sure, is to have your meters handy. I also make sure the runoff PPM is below 150, and flowing almost clear.

Just follow what Jawbrodt said and you should be good to go

 

[Schwag Bag]

So would it be cool to just run my hose through it? Cause I only have a 20 gal reservoir and that goes to feeding all my plants. The tap is about 8.5 ph. Im not sure on the chlorine content.

As for the treating them with lime. I basically just gave each plant 2 gallons of water with 4-5 table spoons of lime mixed in.

Also, the 4 plants other than the 6 sour diesels are doing very well and are flowering. Should I switch to the Tigerbloom and Bigbloom combo from fox farm at full blast now?

 

[grapeoptimo]

u idiots 3galls for everygallon clowns kills the plant 50percent of the time

 

[jawbrodt]

u idiots 3galls for everygallon clowns kills the plant 50percent of the time

Um,....you could use 100 gallons for every gallon, if you wanted to, and your plants would be just fine. What are you using as a growing medium? Concrete? Add water, then let it harden?

 

[intensive]

lmfao^^^


but your supposed to let dolomite lime mix with the soil like 6 months before you actually grow somthing in the soil. i cant remember why, but i cant remember most things so.

 

[jawbrodt]

lmfao^^^


but your supposed to let dolomite lime mix with the soil like 6 months before you actually grow somthing in the soil. i cant remember why, but i cant remember most things so.

If I'm not mistaken, that's how long you have to wait for the nutes in the lime(calcium, magnesium, etc...) to decompose and become useful to the plant. As for PH, lime can be used immediately, even though it'll take a little while to stabilize.

 

[Schwag Bag]

ok wel I guess I will treat it with lime again.

Can I start feeding the flowering plants the bloom nutes at full strength or should i keep giving them half strength?

 

[Medi 1]

ya you went way over kill on lime. will never get it to sit still now i bet. should never need more lime than what it comes with or its not ballanced. over watering and time or abuse to medium is about all that kills of the lime.
like others said should just have watered with plain water with the same ph as you been giving them as before till it came up to mid 6`s. if it wont then add the lime. never more than 2 tablspoons per gal ive used. and must be sprinkled evenly over the surface of medium to prevent hot spots.

 

[gfreeman]

wow bro, ^^^ that hurt my head trying to read what u wrote. is that broken english or u high then a kite trying to type??????

 

[Schwag Bag]

Can you even overkill on lime? Ive read on here that you cant really overdose on lime.

My main question is, can I run my hose water through the plant directly from the hose? I usually let it sit out and then use PH down because it is abot a 8.5 without additives. Can I flush my plants with this water or will it hurt them?

 

[Schwag Bag]

Ok so I really think I need to flush all of my plants now, they are all having this problem now! Leaves are yellowing and blackening and falling off. Can someone please tell me if it would be cool to flush my plants with hose water that is a PH of 8.5? I know its high, but I think my soil is acidic and I ned to raise it. I need to flush really bad, so would this be ok? My only other option would be that I could fill my reservoir up and then PH it to around 6.5 and flush and then fill it up again but the chlorine would still be in it. What should I do for the flush?

 

[Ganjatopolis]

Baking soda, baking soda, baking soda!!!

It ALWAYS takes the pH back to 7, it's a buffer. If it's too alkaline it will add hydrogen ions to lower the pH, if it's too low it will accept them. It's magical. Just don't use too much because the CO2 created can choke the O2 out of the soil.

 

[nl3004.kind]

ok, sloow down... too many things at once will definitely kill your babies... so if you are in hydro drain the res, add bubbled water and flush at least a week- the leaves will yellow, but after the week is over the nute burn will be all gone and you can start off w/ quarter strength nutes for one full cycle (or a week, whichever is longer)... in indoor w/ soil, bubble the water and add 100% more water than there is soil (over the course of several hours), let it run through and throw away the water that you purge... three times usually is the charm for me... (use bubbled water to reduce the amount of chlorine in the water itself, it could lead to other problems)... so if they are in 5 gal pots, flush with 10 gal bubbled water each... when you re-establish your feeding schedule, make sure that you feed with just bubbled water once per three feedings of nutes so you don't get a situation where you have nute lockout (which it sounds like you have)... don't worry about the ph of the water, it is going to run through, and take the excess salts (from the nutes) with it... re-balance your nute solution and pray it works... sometimes the stress of flushing can kill the plants, but remember that the stress of nute lockout *will* kill the plants... hope it helps...
also have you noticed any spots or something that may make you think it's spider mites or something else???

 

[nl3004.kind]

oh, and stop w/ the lime for right now, it only buffers the soil further down the path (not now, which you need)...

 

[Schwag Bag]

basically what is happening is the leaves are turning way black at the tips and yellowing all over, and then dying. This is an outdoor grow and they are allabout 4-6 feet tall. I don't think it is spider mites because I dont see any of them on the leaves? Andthis wasn't happening to my flowering plants until today, and I just fed them more nutes two days ago. So ya, I guess I am going to flush them all. I cant really flush them without giving them chlorine water though. I have 10 big plants and only a 20 gal tank. So I dont really know what to do other than giving them some tap water with a little chlorine in it

 

[nl3004.kind]

ok so try this: bubble all 20 gallons, flush trees once at a time... while doing this foliar feed them reg nutes (light misting only) to keep them alive... repeat until each one has been flushed three times. then feed half strength nutes for a week and pray that all the other stuff didn't already stress them out beyond all repair... also remove all the dead (but not dying) leaves so as to not add to the problem... i wish you luck man...

 

[Schwag Bag]

Well I gave them all about 10 gallons each. I was feeding them hose water with a ph of about 8.5. The run off was coming out at 6. So I hope this did the trick. Im going to give them a partial flush again in 2 days and then give them nutes on the next watering. This that this will raise the PH and get rid of any built up salts? Thanks again