Should I just flush?

polishpollack said:

There were two things in the first post that showed the problem was more likely over fert than lacking nitrogen the way some suspected. The soils used have ferts added to them and the grower stated they were adding more fert. Then there was the yellowing itself, which was confusing some. The combo of lower leaf yellowing along with yellowing in the middle of the plant indicates a different kind of nutrient problem. I stated earlier that leaves go yellow for more than just one reason. It could be over fert or under. Just because lower leaves go yellow, a grower really shouldn't jump to the conclusion that it's based on low nitrogen, especially when it's known that the soil used have fert in them. All the yellow means is that something is wrong. I've been reading online grow forums since OG back in 1999 and the most common mistake people make is over fert. Why? Because it's so easy to do.
Some people like to foliar feed, but I've seen it cause problems. Frankly, if your plants look pretty good, don't try anything risky. If you see improvement, I'd let that ride out for while. You want to use a wet/dry cycle for watering. Let the soil dry out quite a bit, is usually the recommendation as it lets a lot of oxygen in to the roots.
Regarding Dr. Who's belief in FF soil only grows being successful, here's some pics of the outcome; I'll try to upload here. These plants showed a little leaf tip burn, some fert sensitivity, and maybe that's why they did so well without additives. Maybe it was a good combo of genotype and soil. In the second photo, you can see how dark green the leaves are with leaf tip browning.View attachment 3496383 View attachment 3496384 View attachment 3496385

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st0wandgrow said:

I have grown a plant start to finish in FFOF with nothing but water. 3 week veg, 8 week flower. It started fading a bit earlier than I would like, but it finished up just fine.

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Dr. Who said:

I have in all my years never tried it and only assumed.......Now I own the ass part! FF soils were never fav's for the bugs they tend to bring to the table......Now, older and more tired.......I use them when I'm in a hurry to build a yard of bloom soil...

Thanks for the heads up st0w!

@polishpollack I owe you an apology Pollack......I believe you now.......I know st0w does not BS. I don't really know you yet...sorry about that...

Doc

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polishpollack said:

There were two things in the first post that showed the problem was more likely over fert than lacking nitrogen the way some suspected. The soils used have ferts added to them and the grower stated they were adding more fert. Then there was the yellowing itself, which was confusing some. The combo of lower leaf yellowing along with yellowing in the middle of the plant indicates a different kind of nutrient problem. I stated earlier that leaves go yellow for more than just one reason. It could be over fert or under. Just because lower leaves go yellow, a grower really shouldn't jump to the conclusion that it's based on low nitrogen, especially when it's known that the soil used have fert in them. All the yellow means is that something is wrong. I've been reading online grow forums since OG back in 1999 and the most common mistake people make is over fert. Why? Because it's so easy to do.
Some people like to foliar feed, but I've seen it cause problems. Frankly, if your plants look pretty good, don't try anything risky. If you see improvement, I'd let that ride out for while. You want to use a wet/dry cycle for watering. Let the soil dry out quite a bit, is usually the recommendation as it lets a lot of oxygen in to the roots.
Regarding Dr. Who's belief in FF soil only grows being successful, here's some pics of the outcome; I'll try to upload here. These plants showed a little leaf tip burn, some fert sensitivity, and maybe that's why they did so well without additives. Maybe it was a good combo of genotype and soil. In the second photo, you can see how dark green the leaves are with leaf tip browning.View attachment 3496383 View attachment 3496384 View attachment 3496385

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st0wandgrow said:

For the record, it's definitely not ideal so I don't necessarily disagree with your statement. Just throwing it out there that it can be done with a short veg period, reasonable flower time, and a large enough container

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greasemonkeymann said:

With all due respect I highly disagree with that statement, I've grown many many beautiful plants with water only.
I've done water only in roots (707 and normal), vermifire, ffof and happy frog. With the vermifire being the best, hands down.
given enough room they are totally fine.
beautiful plants and a large yield, they were grown outside in half winebarrels.
I went through a phase where I only watered, the difference I saw were very minimal.
BUT that's in a half winebarrel... those things probably hold 75 gallons of soil.
I also have done water only in 15 gal plastic containers.

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Dr. Who said:

Hey grease,,,read the above cpl a posts man......

I can do single pot runs but like a larger plant so I do the 2 pot thing......I lernt dat sum years ago and liked it, duh.....I tend to do what I like and works best for me - Gee like we never heard that before eh?

But there's the rub again - "Given enough room"! I kinda mentioned that and never considered OF as a viable long term soil so I never tried it out.....

Doc

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greasemonkeymann said:

I gotcha man, I know you are a damn good grower, and you always treat people with respect, and those are the types of growers we need here.
You may want to fiddle-around/experiment with slower releasing nutrients, it works really well, like surprisingly well.
I will say that the best soil that I used was the vermifire, in fact it's a large portion of my mix, from like 3 yrs ago, I add compost, and I added some peat (before my compost was ready).

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Dr. Who said:

It's all "Ano" use's too...

Yeah I hear ya on the longer release amendments,,,,I tend to do a lot of longer running plants and been comfortable with my dial in for a long time.....You know how that goes......But yeah, I've done some work on straight through soils.....I have a cpl of formul's that work well......I just find sometimes that I'll start building a soil and end up with my old "normal use" one as I seem to have done the build from habit! Like a week a go and ended up with 5 yards of my old formula for bloom and really MEANT to do the new #3 version for straight through....No harm no foul....LOL

Doc

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