Burnt Plants Only 9-10 Days Into Veg - Questions from Experienced Grower

I have some Sour Diesel that's been vegging for about 10 days now. I've grown the strain in the past, she isn't a thirsty bitch that's for certain.

Anyhow, I gave them 500PPM about 4 days ago and they appear a bit burnt. Some curling, yellowing etc - the odd part is usually in my experience they turn dark dark green along with showing signs of burn when you over do it.

These aren't dark dark green, and I do have some mite damage but I think it's pretty clear they are burnt as well. Anyhow, I have them on the floor, and I usually water to a tiny bit of a run off, not a ton. This method has worked perfectly in the past getting great results.

The problem is it's hard to flush. I will need to take them into the garage and give them water, catch the run off and then dispose of the run off. Anyhow, they are in three gallon buckets and I'm curious how much water you think I should use?

I know sometimes people use 3X the volume inside the bucket with soil, that would be 9 gallons for me. I'm using SunShine though which tends to be more forgiving than the soil and I think I can get away with less than three gallons.

Also, it seems like a logistical nightmare to treat the 150+ gallons I'm going to use to flush them with so I was thinking of just using ph'ed water. My ph'ed water comes out at 6.4, I know you want 5.7-6.2 PH with soil less mixes, do you guys think it'll be a problem if I use 6.4? It's jsut going to be 10X the work to treat the water if I have to.

I figure I can go low on the 5.7-6.2 PH once I go back to feeding them to get the PH correct. What do you guys think? I was thinking of giving them about 3 gallons of water per plant, which should give me 1+ gallons per plant of run off.

It should be known that I've flushed in the past with about 6-7 gallons, and my plants stayed wet for so damn long that I couldn't feed them for nearly 10 days. The sunshine just doesn't get dry quickly. Anyhow so my main questions are about the volume of water I need to use and also if it's okay to use 6.4 water?

I've only watered them 3 times since they were put into the room, so I figure I can maybe get away with only giving them 2-3 gallons of water per plant. What do you guys think about that?

Thanks

Also it's probably relevant to say that the first time I grew bud (same strain) I didn't even have a ph gage, and gave them faucet water the entire time. They really didn't have any problems, didn't show any PH problems with the plants and I had one of my best yields to date so I figure hopefully they could deal with being flushed with water .2 too high on the PH level.

What ya think?

I am being told by a friend that I have to treat the water and get it down to 5.8 to flush. Is 6.4 really too high? The optimal range for 'SunShine is 5.7-6.4 and I figured if I water with water on the lower end of that scale after the flush, the PH of my soil should be fine. Like I said, first time I grew with this strain I didn't even have a PH stick and it worked out fine.. my PH musta been all over the place that time. Anyone ?

i wouldnt be so concerned with the ph, as long as it is w/ in the correct range for whatever method you are using. if you are having problems with the ph going to high, then i would err on the lower side of your ph range and vice versa..
whats more important is to just hurry up and flush before more damage is done you know

hope that helps

huskerguy said:

i wouldnt be so concerned with the ph, as long as it is w/ in the correct range for whatever method you are using. if you are having problems with the ph going to high, then i would err on the lower side of your ph range and vice versa..
whats more important is to just hurry up and flush before more damage is done you know

hope that helps

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The water will come out a bit higher than the range is...comes out at 6.4 while hydro range is 5.7-6.4

I agree I need to get these bitches flushed asap, they will be done tomorrow. I just don't know if I need to treat the water, and put some PH down in it before flushing or I can just run the 6.4 through. I'd be able to give a higher volume of water through if I don't treat the water. But I'm a bit concerned about the PH of my soil being too high after I flush if I use the 6.4

Bueller? Anyone??

oooooo, ur runnin hydro, ic ic. ya def keep the ph down a bit from the upper level, i was under the impression that you were using soil for some reason.

huskerguy said:

oooooo, ur runnin hydro, ic ic. ya def keep the ph down a bit from the upper level, i was under the impression that you were using soil for some reason.

Click to expand...

Yeah, I am just flushing with the water out of the r\o, untreated, and no ph up or down added for logistical reasons. My r\o comes out at 6.4, so I will try to neutralize the soil when I start back up with nutes by bringing the ph down to 5.7

My run off that I tested today when flushing was in between 5.9-6.1 which means my soil is about spot on for pH with hydro, right?

Hopefully they look better in a few days. 3 of the bunch are doing absolutely wonderfully and show no signs of burn, maybe I don't need to flush those ones that seem unaffected?

Thanks

Gave each plant about 5-6 gallons of water poured through the bucket very slowly, should get most of the salts out. I had only watered four times prior to this flush, and I was usually just giving them 3\4 of a gallon, the entire buckets never got saturated so I think the 6 gallons of flushing should take care of the problem.

Using SunShine which is pretty forgiving, and growing in three gallon buckets.