rkymtnman wrote:Looking really good! Our Canadian hemp wrangler would be happy with all those trichs I see.
ItsCurtisBaby wrote:MC my man! I am so impressed, I hardly know where to start! Your screen is going to be so full of flowers, I can't wait to see these next 6 weeks...great job.
Those pineapple ladies...you are not going to believe the density of the "chunks" those flowers will develop into...and the sweetness is very difficult to describe...I think I actually recommended "Smell-a-vision" hahah...
I like your analysis of the breeder's claims vs. your experience, nice touch...
I have experienced what I thought was growth delays due to light leakage...but that was more like a constant red or green glow, vs. a quick blast of light on occasion. I mean, the moon usually provides enough light outside to be able to see by, but outdoor plants seem to flower ok...and the outdoor plants survive a little flashlight work without noticeable issues...so I don't know.
I just try to time the "light cycle" to provide a pretty good window of opportunity to get in and out of the garden...good intentions and all that!
Look forward to next week's pics
ICB
Alchemist wrote:To the best of my understanding, optimal grow temp is based on a few things. First is CO2. The higher the CO2, the higher the temperature the plant can handle before shutting down growth. At 2000ppm (plants can actually use much higher levels but humans risk headaches and even death as the levels exceed 3000) you can probably run over 90 degrees and get VERY rapid growth.
Temperature is the primary metabolic (growth rate) regulator on plants if everything else is optimal. But the plant will only grow as fast as the weakest link. And as temps get over 90 deg EVERYTHING has to be right or you risk the plant closing up and stopping growing. They won't die, (I've had mothers outside do just fine at 105 degrees in the SHADE with freshly watered ie cool root masses) but they wont GROW above a certain threshold that is a product of CO2 level, Humidity, and as always optimal light levels. Nutes are less important as most people over feed anyway.
As for night temps, the KEY is the root mass temp. Because of the high thermal mass of a wet root mass, generally the root temp will be around the mid-point (average) between the hottest day temp and the coolest night temp. Obviously, the dryer the root ball is the hotter it will get. You want to keep that average root temp BELOW about 75-78 degrees because oxygen saturation of nutrients decreases linearly with temp and root nasties (bad fungus etc.) like warm, low oxygen conditions. Roots also actually change if exposed to prolonged low oxygen, and become less efficient, so keeping root oxygen high is CRITICAL for growth and health. So, the hotter you run in the daytime, the colder you need to run your nights, so that you maintain an average optimal root temp of around 72ish. And keeps those bugs (Bacteria) fed with a LITTLE sugar (maybe 1 tsp / gal of Botanicare Sweet) in the nutes because bugs like Bacillus Subtilis eat the slimy carbohydrate material the roots sluff off as they grow and keep them sparkly clean. From the research I've done so far, exactly how much sugar the plants can actually absorb through the roots is a still a matter of speculation, but it is proven mychorizza can allow some sugar uptake cause they break the sugars down first. The roots do store carbs though so it would make sense.. (See Sweet potato)
Also, the hotter you go, the dryer the air should be to assist in water transpiration (which also carries more nutes) to cool and feed the plant. But if you run below 50% humidity (Which in general I do not recommend until the last 2 weeks without covers) it is helpful to cover the top of the pot with the little lids they sell to reduce pot evaporation. Pot evaporation increases the nute concentration in the pot since only the water evaporates not the minerals, and it can cause nute lockout or toxic levels.
So the hotter and dryer you run, the more frequently you want to water with just water and maybe a little 1/4 strength Final Phase or other EBDT (chelation agent) product to re-dissolve and utilize those left behind nutes and keep the overall levels down. The pot lids all but eliminate this requirement, but usually do one good flush at 4-5 weeks. And when an area of the pot gets bone dry, those nutes turn to salts and oftentimes are resistant to re-solution, so you have to be careful of letting pots completely dry more than the top 1/2 inch or so. Use more aerated soil mixes and keep it moist just not saturated. This is most important with Chemical nutes. Organics are more stable. And PH 5.8-6.0 ALWAYS.
And HID guys beware! Canopy temps are generally 7-10 degrees hotter than the room air temp because of the intense Infrared created by HID!!! That's a BIG advantage of LED's, the plants temp is more even and not hotter the higher up the plant you go, and also why LED growers need to run hotter room temps than HID to get the same metabolic rate and similar yields. BTW, RootMaker makes an air pruning pot system (the white ones) that does not have the evaporation issues of normal fabric pots. And they have little caps for the pot. I highly recommend them. PS.. I can't wait for my 4 new CLW 440's I am STOKED!!!!!!! HID's in my small room Bye Bye and good riddance!! And the big room goes as soon as I can get it together.
Some of this may be obvious so forgive me for that, but I hope this helps, and thanks for letting me be a part of this great forum...
RedHotPoker wrote:That was an interesting read, thanks.
Please do Enjoy those awesome new 440's. I look forward to reading about your success with them.
From day one, this new SS880 has performed flawlessly for me. Still learning where the sweet spot for correct height, distance is.
But only burned a couple of minor leaves so far, in the learning process.
The growth rate to date, truly is phenomenal and I can only imagine while smiling, that the fruits of this intensive labor will be quite sweet.
RedHotPoker
MissingCow wrote:SME, feel free to move this grow journal wherever you want. I hope it's okay I finish the journal on this forum even though there's no more LED in my grow. Everyone is so friendly here.
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