Does inadeqaute watering effect yield?

hyroot said:

Under watering, letting soil dry out will make yield suffer and leaves die off. . Over watering will cause root rot and dampening off and black mold. Find the happy medium your plants like. It varies from plant to plant.

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Pretty sure there is no better way to explain it. +1

SPLFreak808 said:

This whole year so far i have not used a de-humidifier nor an AC unit. It is currently 8:09pm 82% RH 78f. At 3pm earlier it was 88f in my house and the plants dont seem to mind it. I even flowered some dj short blue dreams in 80%rh 85f with no issues, i did top the hell out of them and use a screen of green though. And they did drink a gallon per plant every 3 days. However, if i throw some indica's in there they might get stretchy from the heat and that is not how i like my indica's lol

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I think folk should do whatever works for them in their environment, saying that 40% humidity and 75f should be the goal for everyone i do not think is right
as plants will grow very well outside of these ranges

during the winter my temps are like 75-80 during lights on and can drop to 55f at night as i do not heat the area
the humidity can be anywhere from 30 to 70% , with lights on it tends to be low most of the time

i think plants in soil could benefit from higher humidity as they do have a limited water supply compared to hydro
having a higher humidity can prevent water stress, the plants are being watered by the air to some degree
also higher humidity is better for plant tissue, dry air when it blows at leaves dehydrates them

low humidity helps keep the transfer process in my situation going with all the extra heat i have during the hotter months
my room is 85f most of the time 70-75f lights off
i find plants grow much faster with the heat, but this growth increase is with veg and branching, the plants get bigger quickly
i do not see any advantage to them flowering quicker, in fact i would rather the temps are a bit lower when the buds are getting fat as i would worry about mold etc

it makes sense to me that tropical plants should have tropical conditions
75f 40% humidity is not tropical weather lol
which is high heat and pretty high humidity, but this would be outdoor conditions
trying to creating them inside should work ?

peace

youraveragehorticulturist said:

Swanky,
I totally agree with your conclusions. I feel like I experienced the same issues, even down to the 6th week slowdown. More water totally helped. Like you said, it really is kind of a no-brainer.

Look at those nature shows. Its all dry and dusty. Then it rains and plants pop out all over the place. Imagine how much more the plants would grow if there was always some water around.

I would totally go with too moist over too dry. I mulch the top of my soil-filled pots with coco chunks to try to keep the moisture in.

Increasing the amount of "minerals" in my soil really helped with the 6th week slump too. The first soil mix I used included like a teaspoon of Azomite, like that stuff was precious and poisonous. I'd always have to feed plants something near the end of flowering. Then these guys convinced me to go up to 4 cups of a more diverse mineral mix per cubic foot of soil. Results have been great since then. No more soaking buckets of bat guano and kelp all over the place. The soil can carry everything through. Thanks guys!

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That is a crazy amount of minerals. The well known 6-5-3 mineralization mixture uses about 2cups total of calcium carbonate, soft rock phosphate and gypsum for a bale of peat. Huge difference.

Another factor with soil moisture level is its effect on the oil biology. It is often daid that soil life thrives inan evenly moist environment rather than wet/ dry cycles.

Swanky,
Base Mix
1/3 peat
1/3 compost and/ or ewc
1/3 aeration

Nutrients( per cubic foot of soil)
1 cup neem meal
1 cup crab shell
1 cup kelp meal
1/2 cup alfalfa meal
1/2 cup fish bone meal

Minerals ( 4 cups per cubic foot of soil)
I just dumped whatever bags of
-garden gypsum
-rock phosphate
-glacial rock dust
-green sand
-Azomite
I had gathered up into a bucket. It was like 5 pounds of this and 8 pounds of that, all mixed up. 4 cups of the mixture for each cubic foot(about 7 gallons) of soil.

I'm no scientist, but I think that this recipe has "staying power" because so much of it is not water soluable. Bat guano and blood meal just don't last as long. This is probably an over simplistic explanation, but I'm happy with the results.

If this mix looks familiar, its because its 100% copied. Thanks to all you guys who shared!

SwankyDank said:

Thanks for replies everyone.

I thought of another way to summarize:

When growing in soil It is better to err on the side of slightly over-watered rather then err on the side of slightly under-watered.

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Stick your fingers in the pots. Tops of the pots, holes, where ever you can and feel how damp the soil is. Generally you want to keep the top few inches of your soil wet, but not soaking.

hth,

P-

youraveragehorticulturist said:

Swanky,
Base Mix
1/3 peat
1/3 compost and/ or ewc
1/3 aeration

Nutrients( per cubic foot of soil)
1 cup neem meal
1 cup crab shell
1 cup kelp meal
1/2 cup alfalfa meal
1/2 cup fish bone meal

Minerals ( 4 cups per cubic foot of soil)
I just dumped whatever bags of
-garden gypsum
-rock phosphate
-glacial rock dust
-green sand
-Azomite
I had gathered up into a bucket. It was like 5 pounds of this and 8 pounds of that, all mixed up. 4 cups of the mixture for each cubic foot(about 7 gallons) of soil.

I'm no scientist, but I think that this recipe has "staying power" because so much of it is not water soluable. Bat guano and blood meal just don't last as long. This is probably an over simplistic explanation, but I'm happy with the results.

If this mix looks familiar, its because its 100% copied. Thanks to all you guys who shared!

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YAH, minus the SRP, Azomite® and greensand (add basalt) this is very close to the mix I have been using for about 3 years now. I don't use any bottled feeds. Most they get is an alfalfa kelp tea or enzyme tea.

Peace,

P-

SPLFreak808 said:

This whole year so far i have not used a de-humidifier nor an AC unit. It is currently 8:09pm 82% RH 78f. At 3pm earlier it was 88f in my house and the plants dont seem to mind it. I even flowered some dj short blue dreams in 80%rh 85f with no issues, i did top the hell out of them and use a screen of green though. And they did drink a gallon per plant every 3 days. However, if i throw some indica's in there they might get stretchy from the heat and that is not how i like my indica's lol

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holy crap man, where are you growing? in Louisiana?
That's some serious humidity goin on there..
85 deg and 80%rh is brutal!
talk about sweaty balls....

greasemonkeymann said:

holy crap man, where are you growing? in Louisiana?
That's some serious humidity goin on there..
85 deg and 80%rh is brutal!
talk about sweaty balls....

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Avg hot day here would be 80f at 55/60% humidity. But all these fucking storms and hurricanes this year keep stalling our trade winds. Im in Hawaii. That is also indoor temps too.

SPLFreak808 said:

Avg hot day here would be 80f at 55/60% humidity. But all these fucking storms and hurricanes this year keep stalling our trade winds. Im in Hawaii. That is also indoor temps too.

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ahhh say no more!
I gotcha..
yea, even here in CA we are getting the weird pacific ocean storms to effect our humidity and we are like 3000 miles away..
Can't imagine being waaay closer to the equator and dealing with the humidity AND the heat..

greasemonkeymann said:

ahhh say no more!
I gotcha..
yea, even here in CA we are getting the weird pacific ocean storms to effect our humidity and we are like 3000 miles away..
Can't imagine being waaay closer to the equator and dealing with the humidity AND the heat..

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after every sentence or so that i type out. I have to wipe the sweat from my fingertips off my phones screen. Its pretty bad, yet the girls show no heat stress and no mold.

SPLFreak808 said:

after every sentence or so that i type out. I have to wipe the sweat from my fingertips off my phones screen. Its pretty bad, yet the girls show no heat stress and no mold.

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that's just brutal man, it was "CA humid" a lil while ago, and I was reduced to a very large, but very sweaty whiney bitch...
Course I work on cars all day and often they are like 500deg.. Annnnd I am in a uniform too, so layers suck...
but yea man... dripping sweat is something that pisses me off, especially when i'm writing things down for like part numbers or diagnostic tech info...
I feel for ya man...
Annnd our humidity isn't even remotely close to yours..
BUT you get to live in Hawaii soooooo

greasemonkeymann said:

that's just brutal man, it was "CA humid" a lil while ago, and I was reduced to a very large, but very sweaty whiney bitch...
Course I work on cars all day and often they are like 500deg.. Annnnd I am in a uniform too, so layers suck...
but yea man... dripping sweat is something that pisses me off, especially when i'm writing things down for like part numbers or diagnostic tech info...
I feel for ya man...
Annnd our humidity isn't even remotely close to yours..
BUT you get to live in Hawaii soooooo

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Thats funny bro, im at work right now and we are jammed packed so bad, that i am currently working in the sun right now dripping sweat trying to get these valve lashes done. I know what you mean, sweat drops on my phone, on my paperwork, my tools, the customers cars ect.. Not to mention, the body of the cars are chilling at 130F from hawaii's radiant heat. I am used to 60% RH which is uncomfortable to most people. But man, 80+% feels like i just got out of a pool and i got some major ass body odor going on hahaha. Cant wait to get home and get the rigs going.

Currently 89F with 97% humidity where I'm at. I feel you guys too hard.

Ventilation is always a fun challenge.

trevronious said:

Currently 89F with 97% humidity where I'm at. I feel you guys too hard.

Ventilation is always a fun challenge.

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dude, i'd look like your avatar after about 3 minutes of that..
I'd be lucky to find my way home...
No thanks...

SPLFreak808 said:

Thats funny bro, im at work right now and we are jammed packed so bad, that i am currently working in the sun right now dripping sweat trying to get these valve lashes done. I know what you mean, sweat drops on my phone, on my paperwork, my tools, the customers cars ect.. Not to mention, the body of the cars are chilling at 130F from hawaii's radiant heat. I am used to 60% RH which is uncomfortable to most people. But man, 80+% feels like i just got out of a pool and i got some major ass body odor going on hahaha. Cant wait to get home and get the rigs going.

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Ahhh nothing like checking valve clearance on a car that has to be in operating temp range huh?
Ugh...
not cool man.... not cool.
Literally.

greasemonkeymann said:

dude, i'd look like your avatar after about 3 minutes of that..
I'd be lucky to find my way home...
No thanks...

Ahhh nothing like checking valve clearance on a car that has to be in operating temp range huh?
Ugh...
not cool man.... not cool.
Literally.

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Haha, 5th aluminum head I've tuned up this week. These fuckers gotta be dead on. I hate aluminum