Rule Andrews’s, Soil Unknown, Jack Herer Grow Journal 2018, 1200 Watt LED

[Nunyabiz]

I've tried all the usual ways to raise humidity, the only thing that really works if your humidity is under 35% is a humidifier.

 

[RuleAndrews]

I can't seem to get the humidity above 35%, I've tried one last thing before going out and buying a little humidifier. Along with the wet towel dipped in water, I've places a baby bathtub full of water on the other side underneith the air intake with a fan blowing over it.

Also, I'm now getting some rust colouring on the leaves and a lot of them are still curling down and under...

Ph going in is 6.0 to 6.3

Using 75% strength nutrients and calmag ppm going in is 950.

Temps got to 27° today, but usually 24°

RH 35 %

Extraction fan has been turned down

Any ideas?

 

[Emilya Green]

boil a pan of water

 

[Pennywise]

Are the spotty leaves up high on the plant or older growth.

 

[RuleAndrews]

Are the spotty leaves up high on the plant or older growth.

Which picture?

 

[RuleAndrews]

Are the spotty leaves up high on the plant or older growth.

I Read you question wrong sorry. Yes, they are up high.

 

[Pennywise]

263A06B3-C839-4F16-804E-C7033138D185.jpeg

• Pennywise
• Jun 6, 2018

Induced deficiencies

How much npk are you feeding?
The ec of your nutes may be to high locking out Calcium

 

[Pennywise]

Especially potassium

 

[RuleAndrews]

I'm not too sure how to answer that.

I can tell you what I'm using and how much...I'm using General Hydroponics Flora Grow, Micro and Bloom. I'm following the chart online for early bloom and using about 75% of what they are recommending.

 

[Pennywise]

Drop to half for a few feedings.

 

[RuleAndrews]

I'll definitely give that a try. Thanks!

 

[Emilya Green]

looks like magnesium deficiency starting up to me

 

[RuleAndrews]

looks like magnesium deficiency starting up to me

I've been giving them cal mag every feeding though.

 

[Emilya Green]

its just a mild deficiency at this point... give them more and that should stop the progression. some plants just need more than others... i have one in my tent right now.

 

[RuleAndrews]

I kept the nutrients the same right now, but increased the cal mag on the one plant as there was only one plant showing the rust colour on the leaves. I also did some pruning.

The towel dipped in the water along with the baby bath full of water brought the humidity up to 42%!

I'll be keeping a close eye for any changes and make adjustments based on that...

I didn't wanna drop the nutrients to 50% then increase the cal mag because I wouldn't know which one made the difference.

 

[RuleAndrews]

I absolutely love this site! There is so much info and such good help. I wish I was able to contribute more, but my knowledge is very limited. As I progress and get more grows under my belt, I will definitely be transferring some of my knowledge to others as you have all done for me!

Thank you!!!

 

[RuleAndrews]

I'm wondering how much it would benefit if I added 400 watt hps lamp in the tent 3 weeks into flowering? Its got an 8" cool tube so I'll have it inline with my extraction fan to keep the heat down.
Thoughts?

 

[Emilya Green]

As long as you dont burn your plants, it is hard to object to more light. Some people go crazy with it... I used to run two 600w bulbs in my flower tent. This time I am going to run 6000w of LED lights (well, running at 10%), but still... its a lot of light. That 400 might just make the difference between having light and whispy buds to having rock hard nugs... even 3 weeks in, it has to make a difference. Just be sure to gently ease it in.

 

[RuleAndrews]

Ahh, I just realized the cool tube is 6" and I have an 8" fan and duct. Anyone see an issue with using an 8" to 6" reducer on either end of the cool tube?

 

[RuleAndrews]

Got it's hanging in the tent next to the two LED's, gonna leave it for an hour or so and see what the temps do. I might not even need to put any cool air over it....