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cotton roots - evidence of harm?

" wishy washy" what does this mean man im from europe I dont understand ebonics. I know "sketchy" but thats about it. please EXPLAIN your thoughts and references more openly.
 

sproutco

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I can't walk up to your plant and look. I have to look at it from afar. You told me not wavy...now wavy. I don't know. I am just trying to point you in the right direction to diagnose your own plants. Up close views are blurry. Reread my last post. Maybe you can get some zinc sulfate and find a teaspoon rate for your plants. One spray won't hurt them. Zineb may be hard to get. Plants might enjoy the sulfur boost from the zinc sulfate. Let mynamestitch look at these plants. Maybe she has more insight. Send her a pm. I am hungry. See ya and wouldn't wont to be ya! (This is an expression to see you later)
 
Alright I read about the zineb fungicide. Its banned in whole of EU and suspected of causing changes in the thyroid hormones. Holy shit sproutco is this stuff really what you recommend to use I dont want to die of cancer when Im 40 you know?
 

sproutco

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Mindovermatter said:
Alright I read about the zineb fungicide. Its banned in whole of EU and suspected of causing changes in the thyroid hormones. Holy shit sproutco is this stuff really what you recommend to use I dont want to die of cancer when Im 40 you know?
hahahaha its an old fungicide. I did not know that about it. Try zinc sulfate instead. (that is if your margins are wavy. lol.) 50 ppm zinc from zinc sulfate as a spray. http://www.ces.ncsu.edu/depts/hort/floriculture/Florex/BP ID Nut Def.pdf
 
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Ok today I have foliar fed them with the following solution 3 times:
-50ml of 700 ppm nutes, 6.0 PH with 1 drop of ajax and zinc sulphate. I have never seen them so green they look amazing now. Why didnt you tell me about foliar feeding as alternative for nutrition when you got root problems sooner? Argh! Now I did the other changes too ...lets see what these bitches can do ... can I sex them now? how does that preflower stuff work cause I got them in 24h light can they still get preflowers how do I know?

I have deduced I have all the NPK and some? others defiency. So I am thinking about foliar feeding these bitches once a day now what you think? With the new 700 ppm nutrients and foliar feeding I notice the purple on the stem and petioles of the uppermost leafs are green in contrast with the lower who are purple and even red. :woohoo:
 
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Also a confession, I have been a hard-headed newbie idiot yes ok I admit I didnt trust your advices but now your my god hehe. So learn me this art I want to become the master of all greeniness too advice me into the dark power yesssss. :wave: :joint:
 
sproutco said:
This means that your roots are too cold or ph is too high maybe. Reduced root growth. Hopefully your ferts contain enough zinc. Too low a fert rate. You increase them to 700 ppm's right? Too much phosphorus. Too much calcium, magnesium, copper, iron, manganese... Does the water you start adding the ferts to have alot of ppm's? Doesn't it have 100 ppm's of something to start if I remember correctly? Could be a earth element like calcium or magnesium. Thats alot of something. Your project should use r/o reverse osmosis water or distilled water. Try that and see what results you get.

Ok fert is 700 ppm lightproof dwc. 105 ppm from tapwater, of which 10 ppm is chlorine since after 24 hours the tap is 95. Yes well that could explain why I got symptoms of calcium defiency. I read that calcium to magnesium is 3:1 ratio right? And I added the past 2-3 days 1/2 tea spoon into 1.5g. so I think it may have been too much magnesium messing with the calcium ratio?? can someone explain if I think right or wrong?

Anyway they look quite good now Im just worried I may have given them TOO much foliar feed, like 2 time with 400 ppm but they werent correctly done as I put them back under light, but the third time with 700 ppm they were away from the light for 20 minutes and had time to soak up that solution. No bad signs yet though. Hope this get going soon I'm tired the big one is 6 weeks and 7" old and the young ones which are 3 weeks are 6". I put them into a bubbler about 10 days ago and they have doubled in size then although they have pythium. I fight it through H202 and enzymes and bloody murder of brown roots. I suspect the goddamn dutch ass who sold me the air pump dishonest cause it dosent got any force, maybe enuff for 1/2 gallon but not for me (1,5 gallon)altho the package says 1500cc/min or is it because its not airtight I wonder because I bought a huge airstone but its not really effective it seems.
 
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24h post foliar feeding with nutrients and zinc:

I am amazed at how the plants have reacted to this treatment - miracle cure! And they have started to take off in growth rate. Even some of the older leaves who looked completely dead and beyond recovery are getting some green color back in them, and thus you cannow better see the multiple defiences easier. NPK, zinc & boron I have diagnosed so far. There are some new leafs who got dark areas in the end of the leaf and came a little inside and turned brown/rust colored. But the leafs dont feel dead anymore and like real leafs - soft and nice.

I just hope to get some nice topshots of these to clone in a new batch - without pythium as these were thought to be my mothers.

Noted the ppm and PH rose through the day, and topped off with about 1,5L of tapwater and stabilized PH.

The strain bogglegum, is incredibly good for the department grower! Well so far its been no smell at all!
 
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sproutco

Active member
Veteran
Don't foliar feed anymore. Use straight water and rewet the leaves. Nutrients that dried on the leaf will get rewet and reabsorbed into the plant. Repeat this once a day for several days. Foliar feeding is permanent so you should use great caution when doing this. It is easy to damage plants especially with the micronutrients. Try to depend on just the roots to do the job.

Tip: adjust the ph of your foliar spray to 6.2 to 7

Caution: always make sure you don't spray a hot hid bulb; it may be wise to turn the lamp off and allow the bulb to cool before spraying
 
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48h post foliar feeding:

Have seen some slight more greening of the plants, but overall they have stopped since the foliar feed. I sprayed em with water twice so far, could clearly see salts on plants, but as I don't use a HID light but an enviro (125w) there was never any risk for burn.

The roots are coming ever so slowly ...Noticed yesterday that the PPM had increased to 750 (from sproutco suggestion 700) so I topped off with some water. Some have a much yellower color and in some part small spots of the roots, like 1-2 mm brown colors show - while many more are beautiful white so far. Should I kill all the yellow? Is there a test on how to decide if roots got pythium?

I also checked the rockwool cubes and on 2 of the 4 plants they were bone dry; they were the biggest ones so I thought it to be logical to handfeed them from the res. about 100ml of 650 PPM.

I have some pictures here of close-up of damaged leaves, pls tell me what you think!

Ok here they 2 weeks ago.
2241DSC00008.JPG


Heres a 2 week old of the largest (which is 6 weeks 7" an 8 nodes)
2241DSC00011.JPG


And here they are now.
2241DSC0000213aug.jpg


This I think that cal defiency?
2241DSC0000813aug.jpg

2241DSC0001013aug.jpg


They all have lower leafs like these, but some have tarted to get a little green as you can see.
2241DSC0000913aug.jpg


The oldest one again, multiple defiencies.
2241DSC0001113aug.jpg


The one to the left is 3 weeks younger.
2241DSC0001613aug.jpg


Suspected boron defiency on the oldest.
2241DSC0001213aug.jpg
 
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argh!
So I write the above post and make and effort, and you dont even write a comment?

- I've received the mhyrcozzial bacteria, how should I apply it in my setup?
- What do I do with the rockwool cubes on top who get bone-dry in 2 days?
- Any comments about the pictures? what defiencies do I have?
 
OK according to Ed Rosenthal at CC
The 10% hydrogen peroxide solution is sometimes used at rates as low as one ounce per 10 gallons water; however, enrichment using an ounce per gallon is more effective for disease control. When 35% hydrogen peroxide solution is used, it can be added at the rate of three ounces per 10 gallons of water. If a 3% solution is used, use three ounces per gallon of water.

Ok so it seems I have been using far too little of the peroxide according to Mr Rosenthal --->> I increased the 17,5% I have to 20ml instead of the 5ml or so I had before.

I still dont know how to apply it best in my setup. Should I pour it onto the RW? Should I sprinkle it on the coco? Should I first put it in a glass of water? How can I feed it? - etc.
 

sproutco

Active member
Veteran
Sounds like you need to make a trip to the local public library. Plenty of books, magazine articles, journals, etc...about plants. You can get alot of your questions answered other than just using the internet. This is what I did. Good luck!
 

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