What 's the trouble? Bet!

[Laughing Buddha]

This is young plants of pog and bbg. growing in coco soil under fluos, temp 28-30 °

Feed with hesi coco, 3 ml (ec 0.70) + supervit+ complex racinaire (in french) like roots booster, ph 5.8-6.0.

They was germed in middle of august.

Everything was all right until the last feeding.

I'm totally noob in hydro, and i don't really know what happend.

Magnésium deficiencie?

Wrong ph?

Too much nutriments or not?

Just npk (ec too down) deficiencies?



I flushed them yesterday.

In your opinion, what do i do next watering?

Epsom salt?

More nutriments or less?

Change ph?



Pix now:



before:

after:

Thanks

 

[Azra3l]

Hi,

Would you mind telling us Ec of your solution and Ec of the water dripping away from the pot ?


Salut,

Ec de la solution d'arrossage et Ec de l'eau en sortie ? (Il faut arrosser le coco jusqu'a ce que ca coule par le bas d'enciron 15% de la quantité totale de solution utilisée)



Cheers

 

[dre86]

pareil?

 

[sproutco]

Your ph sounds ok. What exactly is in the hesi fertilizer? Be specific about ingredients. I don't think I would add root stimulator or anything else that is not a necessary plant nutrient. These are probably a gimmick.

Votre pH semble correct. Qu'est exactement dans l'engrais de hesi ? Soyez spécifique au sujet des ingrédients. Je ne pense pas que j'ajouterais le stimulateur ou toute autre chose de racine qui ne sont pas un aliment d'usine nécessaire. Ce sont probablement un truc.

 

[Laughing Buddha]

Hi,

Would you mind telling us Ec of your solution and Ec of the water dripping away from the pot ?


Salut,

Ec de la solution d'arrossage et Ec de l'eau en sortie ? (Il faut arrosser le coco jusqu'a ce que ca coule par le bas d'enciron 15% de la quantité totale de solution utilisée)



Cheers

hey Azra3l,
ec measures will be done tuesday late in the evening.
20 to 30 % drain. x2 when i flush them with enzyms.
Thx.

pareil?

The same one. I see this pix in the complete guide.
thx

Your ph sounds ok. What exactly is in the hesi fertilizer? Be specific about ingredients. I don't think I would add root stimulator or anything else that is not a necessary plant nutrient. These are probably a gimmick.

Votre pH semble correct. Qu'est exactement dans l'engrais de hesi ? Soyez spécifique au sujet des ingrédients. Je ne pense pas que j'ajouterais le stimulateur ou toute autre chose de racine qui ne sont pas un aliment d'usine nécessaire. Ce sont probablement un truc.

Hi,
All Hesi coco products. http://www.hesi.nl/english/producten.htm
Hesi coco npk 24/21/27
ghe ph down.
ata enzym each 3 waterings.
3 ml/l hesi coco==> ec 0.70 not 1.50
I 've stopped root stimulator last watering.
Thx.




Iron or mg? Hum.
Lower or upper ph? Hum.

To be continued...

 

[Laxpunker]

It looks like a Mag defiency.

 

[Rosy Cheeks]

It looks like a Mag defiency.

The picture posted by dre86 definitely looks like a Mg deficiency, the two first pics by laughing buddha I'm less sure about for now.

I've had the exact same type of leaf chlorosis as in dre86's pic while growing in coco, although rather than a deficiency I identified the problem as a medium/root problem.



At the time, I grew some plants in 50/50 coco/perlite, some in 50/50 coco/soil and some in 80/20 soil/perlite, in veg. I grew then all with the same nutrient composition.
Only the 50/50 coco/perlite plants presented this kind of leaf problems, when the plants reached such a size that the roots filled up the medium.

My conclusion therefore was that it was not a nutrient deficiency (Mg def), and unlikely a ph problem, since coco generally has an ideal ph value of somewhere between 6 and 7.

It is possible that the 50/50 coco/perlite mix didn't retain enough water, and that I was experiencing a medium stress problem, or perhaps a so called CEC problem (the cation-exchange-capacity of a grow medium is its capacity to hold cations that are avaible for uptake by the roots). In any case, the medium simply wasn't able to deliver enough nutrients to the roots, therefore the deficiency signs. The fact that I was not on a drip system - but watering by hand - probably accentuated the problem.

D'ailleurs, si vous voulez discuter le probleme en francais, pas de probleme, mais pourquoi pas dans le forum francophone?

 

[sproutco]

I looked at the ingredients to your fertilizer. Sounds like they are complete. If I were to guess, I would think it might be zinc deficiency. Only the upper half of the plant is affected. This is where micronutrient deficiencys show up. Magnesium deficiency, as some have suggested, would show up in the lower leaves first. Plants have to mine (or search) the soil for certain nutrients more than others. When a plant becomes rootbound, growth of the roots slows down. So does the ability to mine the soil for nutrients. It may just be time to repot in a larger container as Rosy cheeks suggests.

J'ai regardé les ingrédients à votre engrais. Des bruits comme eux sont complets. Si je devais deviner, je penserais que ce pourrait être insuffisance de zinc. Seulement la moitié supérieure de l'usine est affectée. C'est où les deficiencys de micronutrient apparaissent. L'insuffisance de magnésium, en tant qu'ont suggéré, apparaîtrait dans les feuilles inférieures d'abord. Les usines doivent extraire (ou recherche) le sol certains aliments davantage que d'autres. Quand une usine devient rootbound, la croissance des racines ralentit. Fait ainsi les capacités au mien le sol pour des aliments. Il peut juste être temps de repot dans un plus grand récipient pendant que les joues attrayantes suggère.

 

[Verite]

Those plants are too young to be mag def. Imo they look like they just need more food, primarily N.

 

[Laughing Buddha]

I think they was underfertilised.
1.10 ec, and ride again.
Big thanks

 

[MynameStitch]

magniseum does not starr on the top plant, not in young plants, older plants it can but not this young,

you keep that EC that high for to long you wil get nutrient burn

they also need bigger pots

what lighting are you using for your plants and how close are they?

also when you flush your plant you wipe out nutrients from the soil and deprive your plant even more, you shouldnt of flushed they didnt have any problems, you only caused more problems by flushing, now if you have to much nutrients you would have done the right thing, but in this case by flushing you did the wrong thing


yout EC for that size of plants is nutz, if you had soil mixture you would be in trouble, but wait and see that plant will get burned if you keep that ec up the way it is

 

[Laughing Buddha]

Hi,
Oki for Mg defieciencie.
I low Ec to 1.00 next watering.
Fluos in the grow box, 6 cool and 5 warm. I light only cool fluos. Too hot to turn on all lights.
Pots are tekkus 15x15x20 cm, near 3-3.5 liters with coco inside. Only coco. And I can't change pots .
I think i said a mistake with soil coco. I use coco only.
And i flush every 3 watering with enzyms. When i say flush, i watering plants with water ph near 6.0, and enzyms. I drain 20-30% .

Thanks you Man.

See you later
& thank you everybody...