Week 21 - It's a JUNGLE! I'm back and OMG! She's so big! Not only tall.... but... ROUND! I couldnt fit her into a picture, so did a video instead. Wow! She is really something! My Gardena autmatic AI watering system is working wonders. Fed her some nutrients today but I'm not sure I want her to grow more. The colas are taking shape, the buds are beginning to swell. Can't wait to taste these nugs

They are taller than me now... I think they stretched. I am insanely excited to see these ladies go to flowering. The veg stage is completely out of control! You can see that I've added a soak hose to the garden to later the roots over night. I want to make sure the roots receive total saturation to bring nutes all the way down to the deep roots.

I had to top Cantaloupe haze and White widow as they were too close to the lights and I didn't want to loose any ppfd on my lowers. My GSC seems perfect for not topping. next time I would top those strains at least once. I have been flushing the CH and getting run off around 1200ppm which seems like the max she can take the others like it stronger so I have been flushing them every 2-3 days. CH is tough to keep happy but will continue to monitor. All plants are in week 4 of flower 12/12 from seed.

@twenty20mendocino Ateam R&D Update ~ Lets Go day 38 of flower an these ladies are looking amazing! Gettin in some nice frost a the smell is insane, so many different terps Sour , skunky , fuel , gassy funk a berries 😍so amazing! Not too much longer to go a these ladies will be ready for flush , but let’s take it day by day!! Hope y’all enjoy an have an amazing productive day ! Cheers to y’all 😶‍🌫️💨💨💨💨

Chopped this lady on her 70th day! Branches all were bent from being heavy! Loved this strain very much. Super excited about the soon to come smoke! This stinky sweet stuff Started the dry, trimmed the buds and set em up. Temp 68F ( the best I can) and RH 62-65% Flipped every 12 hrs. Another in the books for me! I really enjoy the LST grows, very easy! Now to figure how to make the buds FATTER!! TYVM for the follows, likes and support through this grow. 😍 Looked forward to many more and hanging with you then! MUCH LOVE!😍👊💪🙏

WEEK 12 💪😻👍

They are in solo cups after the peroxide soak. I've got babies!!!

Throughout the week, I give compost tea, and fermented plant juice once each ^^ Hope you guys have a wonderful day today ^^v *** Please Like, comment & share *** Highly appreciated -----/-----<@

~ FASTBUDS TESTER #2204 ~ Well friends, here we go on another 'canna-venture' together! The grow room has had a complete remodel and some upgrades done to it including brand spanking new 4x8 and 4x4 tents and a Trolmaster Hydro X controller along with a new Control Panel. This tester strain is one of six tester strains that FastBuds has graciously provided me with and I'm looking forward to seeing what this girl has to offer when she's grown to her full potential! One drawback of 'testers' is I have little to no information on it other than its number and that it's an autoflower... 🤪 But, it's ALWAYS a blast growing them for me because not knowing a lot allows me to just concentrate on the essentials: Light, Environment, Water, Nutrients and possibly a bit of LST... not complicated, just basics like keeping a constant temperature and RH in the tent at a level that gives a good VPD, watering when almost dry and maintaining proper light levels according to their stage of growth. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ~THE SETUP~ ~Initially seeds were lightly scuffed, then soaked for 3 hours in 78℉ distilled water after which they were transferred to moist paper towels laid out in a Jiffy Pellet plastic starter tray with lid. Underneath the tray was placed a Vivosun Heat Mat with Controller that was set to 78℉ where they stayed until their tap roots emerged. ~Planted into Jiffy Peat Pellets that were hydrated with distilled water warmed to 78℉ with a 7.0 ph. ~Once roots emerge from the Jiffy Pellet they're transferred to their fabric pots. ~Grown 100% organic in a 4g Gronest fabric pot and a 3g fabric pot by Wraxly filled with Mother Earth 70/30 Coco/Perlite medium and initially amended with Dr. Earth 4-4-4 / Earthworm Castings / Dr. Earth Flower Girl 3-9-4 and Coast of Maine Stonington Blend Organic Plant Food 5-2-4. ~19/5 light cycle for the entire run with supplemental UVA added during flower. Lights are controlled by a Trolmaster Hydro X controller set for a 15min Sunrise/Sunset simulation. ~Top dressing every 3-4 weeks with slow release dry amendments and Earthworm castings. ~Straight water ph'd @ 6.2-6.8 when needed and bi-weekly Compost Tea's. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Weekly Updates: 12/29- Here we go into Week Four of Vegetation but I'm somewhat relieved that they haven't started flowering yet as they are only 5" & 6" respectively so some more time to grow is a good thing right now! It's been a month since these pretty ladies popped out of the ground and other than being short, they are both looking perfect! The #1's 4g Gronest pot was heavy when lifted as was the #2's 3g Wraxly pot and they both looked happy, so I skipped watering today and will check them tomorrow morning after the lights come on. Since being topped for the first time a week ago, they both have two new shoots that are emerging and have new growth sprouting out all over with extremely tight node spacing making them definitely Indica dominate, and will most likely result in very short stocky cultivars from this strain which would be ideal for someone with limited grow space. 😎💚 Both of these girls are extremely healthy with excellent vigor and color and I can't wait to see if they get any taller and for them to begin flowering! 🧐💚 12/31- Today was a 'dry day and all I did was refill the humidifier and some canopy maintenance, tucking shade leaves and gently bending branches. It's been a little over four weeks since they were planted in their amended medium and it's time to give their microbes a good feed so they can continue to provide them with all the macro and micro nutrients they need so, yesterday they got a good watering with 0.5g of de-chlorinated water with GreenGro's Veg, Flower, Green Aminos, Natures Brix and Granular Myco added to it @ 1.5 tsp/g and then ph'd to 6.4 @ 73℉. Still no signs of flowering on either tester but I anticipate it will be any day now! 01/02- Yesterday I finally saw signs of flowering on the #1 tester! The #2 is still a no-show but as short as she is it's probably for the best! Today I watered them from the bottom with 0.5g of de-chlorinated water to which I added 3ml/g of Earth Juice OilyCann cal-mag to prevent any Cal-Mag issues they may encounter before they arrive. I also have the HLG 650R set 36" above canopy and it's set at 60% power which is being controlled by a Trolmaster HydroX controller. The tent environment is on point with temp's running 70 when the light's off and 74℉ with the light on. I'm keeping the RH at 55-60% right now but will drop it as flowering progresses. Finally, I've been keeping the VPD in the tent running 0.85 - 1.05 which I'm happy with! 01/04- They have both been doing really well getting watered every other day and yesterday they received 0.5g each of de-chlorinated water with 3ml/g of Fish Head Farms Fish Sh!t Soil Conditioner which was then ph'd to 6.3 @ 72℉. The #1 tester is on her fourth day of flower and looking great! Because she's so bushy and was getting choked with growth, I removed a few shade leaves to open her up and get some light penetration down into her canopy. The #2 tester has yet to show any signs of going into flower which I won't be concerned with unless it persists for another week or so, at which point I'll make a decision on how to deal with her. 😎💚 Thank you for checking out my passion in life! Please visit as often as you wish and I hope you enjoy this journey as much as I know I will! Grow Strong! 💪😎🤙

when I came today, I didn't recognize her, she was eaten by snails, but she put out new branches, which grew rapidly :) she is already showing signs of rain :) or it is already the beginning of flowering:).

Main crown got damn last week on plant with lil to no training done to it...leave are also a bit yellow going to straighten it out this week

Très peu de photos de cette semaine :/

8/14 Everything looked beautiful this morning. Seems like I've got the watering schedule down better. I do have one gmo that looks hungry so I need to increase nutes. At least on that plant. Toasted toffy has little spits that could be water marks, pests or septoria. I don't think it's septoria. In the pastvi lost far more leaves when I had septoria. I've been crazy busy. I'm surprised things are going this well. I need to put up the final supports so I can add to them once I've got big heavy buds. I was really stoked to see everything doing so well. The plant in the 50gallon is the furthest in flower. I'm so grateful to have the ability to grow high quality cannabis for myself amd my wife. There's nothing quite like it. That hash I made turned out great. I think I'll press it today. Supports will be done this week. Saw a few aphids on the plant I cut down. Earwigs aren't here this summer or there would be NO aphids. Plus when I cleaned out the insides this morning I found some dead leaves WAY in the middle by the stalk. They would've eaten that shit if they were here. Birds and other predators seem to be keeping pillars at bay. I'm not seeing the damage and when I do sfind one it's absolutely tiny like a newborn. I'll think about whether I need to spray BT. 8/15 That fucking cancel button always fucks everything out. I was done no I need to start over. Didn't water last night. Found pm on my gmo in the 30. Interior of the plant. Should've defoliated better and earlier. Oh well. I'll treat with k bicarb or plant doctor. I'll have to think about it. Other plants are looking good. Well they all are. I just hate pm. I can't isolate it due to local laws so it is what it is. Nothing I haven't dealt with before. Watered today. The middle gmo in the 30 got 1.5 gallons. The other plants each got a gallon. Including the one in the 10gal and 50 gal. Its supposed to rain but only like .1. I also chose to feed today. All plants got a gallon. I DID NOT WATER THE EVENT HORIZON IN THE MIDDLE AND THE SHERB PIE AS THEY WERE PRAYING AND HEAVY. I need to get these supports up. I'll update as I go. Oh and one thing I remembered is that, I didn't properly sanitize the trellis nets I installed on the plant that has pm (non visible today but still). I harvested the plant that used that bet last year was harvested in two stages. The bottom I let go way later and ended up with a little pm on the stuff I left for hash material and it got some pm. I wonder if that's whete this came from. 8/16 Death in the family this morning. I couldn't decide if I should use organocide plant doctor or not. It's a systemic It's been discontinued and reformulated. It's a systemic fungicide. Instead I mixed two tsp potassium bicarbonate with a little dawn in a half gallon mister. I used gloves and defoliated everything that had pm on it. I checked the plants next to it and luckily it hasn't spread yet....but it will. I feel safer using the k bicarb. I'll do more research and try to find the best way to tackle this. I don't want to get rid of the plant and due to local ordinance I can't isolate it. If I can keep it to this one plantvthat would be fine. I'd just use it for extracts. So glad I didn't use all that netting and put up tjosr supports. I'll need to disinfect them if I decide to use them. We'll see. Plants are coming right along flowering. WENT BACK OVER AND DEFOLIATED A BUNCH OF fan leaves and interior stuff to promote airflow. Still saw pm on that plant u had treated earlier with k bicarb. I can't isolate due to laws and I'm not willing to discard this massive monster cropped plant. So I'm going to treat it. I started by removing everything infected and improving airflow on that plant and all the others. I didn't make it to one event horizon. I plan to treat the infected plant with Organocide Plant Doctor since its what I have on hand and I've had good luck. It's a systemic. After I treat the one plant and see that it didn't hurt the plant I'll use a preventative dosage on the other plants. I've battled wpm several times. This is something I'm very familiar with. What sucks is it's totally my fault it happened due to grower error. This has set back me puttingvup my supports as well. Plants look good woth a haircut. Also the toasted toffy had some leaves removed with spots that looked like septoria. I think nutes havecreally kicked things in gear. Now there are little buds on plants. 8/17 BAGS still seemed heavy so I didn't water. It's been MUCH cooler. It's 63 at 9am. It would normally be 80 by now so maybe they aren't using as much water. I watered the the toasted toffy I missed last round but the Sherb Pie still had weight to it. I also watered the GMO on the far side and the one in the 30 as the seemed a little lighter. I looked in and I couldn't find a SPOT of powder mildew on the plant! I know it will come back but on this 100% rh day there isn't a spot I can find! I'm going to go check on them later today. Do some more defoliation and treat the plants with Plant Doctor to try to mitigate the spread of the P.M. Very suprised the k bicarb worked like that. WENT BACK OVER AROUND 11. I WATERED THE TWO THAT DIDNT GET WATERED LAST TIME. THE EVENT HORIZON AND THE SHERB PIE. IT WAS COLD AND OVERCAST. TEMPS HAVE BEEN MUCH COOLER. SOON AS I WATERED THE SUN CAME OHT AND THE TEMP WENT UP. I WENT THROUGH THE PLANTS I MISSED AND SEFOLIATED LEAVES AND INTERIOR BRANCHES TO INCREASE AIRFLOW. SURPRISED TO STILL SEE NO PM WITH 100% HUMIDITY. I WENT THROUGH EVERY PLANT. ILL NEED TO GO TJROUGH AGAIN BUT TJIS IS MUCH BETTER. THE TOASTED TOFFY THAT MAY HAVE SEPTORIA I WILL TREAT TONOGHT WITH PLANT DOCTOR. I REMOVED ANYTHING LOOKING INFECTED. I LSTed THE BIGGEST BRANCHES WITH CLIPS TO THE BAG AMD TWINE. SO AIRFLOW IS MUCH BETTER. I THEN REMOVED A BU CH OF THE MIDDLE. I COULD TAKE MORE BUT ON OUTDOOR HARVESTS THAT LITTLE STUFF GOES IN EXTRACTS. I PUT A FEW HOURS IN TODAY. IM GOING BACK AND ILL TEST THE PLANT DOCTOR ON THE TOASTED TOFFY. BUT IF THE K BICARB WORKS THIS GOOD ILL JUST KEEP USING THAT. 8/18 It started sprinkling when I left this morning. I did more defoliation on a few different plants. Including the healthiest GMO. It seems like things should be further in flower but it is what it is. I'm not doing clones again. Only reason I did is because I lost my 72 seedlings and depleted my seed supply. I hate treating pm. Lost Coast Plant Therapy I'd really whete its at when it comes to treating pm. I might just order that. My commercial buddy told me that he wouldn't use the plant doctor and not to "spray shot all over my plants". He's probably right. I see something small and try to overcurrent. I dont see any more septoria looking leaves on the toasted toffy since I lsted it and removed damaged leaves. I was going to use the fungicide plant doctor on that and then use it ad a preventative. He's probably right. I've put a lot of work in defoliation and such. It WILL spread but it hasn't yet. I removed what I saw. I was going to hit it again with k bicarb but it said it should be weekly treatments.i hope I'm doing things right. I shouldn't be this worried about pm but I've got am anxiety disorder. I'll fully sterilize (AGAIN) my posts and trellis netting before I instal it. I'll probably go check on them later. It's hard to avoid pm with 100% humidity and 30° temp swings. I've got a few lights so maybe this winter I'll do indoor. I'll try to keep this updated. LOOKING BACK AT PRIOR DIARIES I GUESS IM RIGHT WHERE I SHOULD BE FLOWERING WISE. I JUST HAD A COUPLE REALLY EARLY PHENOS A COUPLE TIMES. 8/19 Defoliated some more stuff amd tried to improve airflow. Humidity is high and it was sprinkling earlier. I think we'll have showers. Not seeing much pm. MAYBE a little in the middle of that middle gmo but it could just be residue. I'll treat it again with potassium bicarbonate soon. If that doesn't work I'll switch up treatments. I've got citric acid amd some other stuff too. I almost ordered lost coast last night but decided I'd wait to try it out. The toasted toffy has SOME spots that look like septoria. It's the second furthest in flower and very indica leaning. It seems to be flowering vigorously so I don't want to fuck with it too much. I could use plant doctor on it and see what happens but I'm going to monitor for a few days after defoliating. WENT BACK OVER AROUND 4 AND SHOOK OFFCTHE PLANTS. HADNT RAINED MUCH. BAGS ARE STILL HEAVY. THE TEN WAS LIGHT AND THE EVENT HORIZON BESIDE IT SEEMED A LITTLE LGHT AS WELL. I THINK IT MIGHT BE ME COMPARING THEM TO OTHER PLANTS THAT ARE SATURATED. SEEING HOW THEY BOTH LOOKED THE BEST IVE EVER SEEN THEM I HELD OFF WATERING. ITS ALSO SPRINKL9NG AMD GOING TO RAIN TONIGHT. ILL REASSESS IN THE MORNING. PLANNED ON USING PLANT DOCTOR ON TOASTED TOFFY BUT DECIDED AGAINST IT PARTIALLY DUE TO THE RAIN. PARTIALLY BECAUSE I PUSSED OUT. I WANTED TO FEED. IVE NOTICED SOME FADE AND PLANTS PUSHING AND TRYING TO GET OVER THE FENXE INTO FLOWER. THE TOASTED TOFFY AND THE UNKNOWN IN THE 50 ATE THE FURTHEST ALONG AND DEVELOPING ROCK HARD BUDS. GMO HAS A MASSIVE STRETCH. THINGS CHANGE DAILY. I WANTED TO GET A GOOD DOSE OF NUTES IN SO AFTER THIS LITTLE BIT OF RAIN WHEN WE GET THAT NICE SUNSHINE MY PLANTS WILL TAKE OFF!! THEY'VE BEEN PROGRESSING FAST DESPITE THE SHITTY WEATHER. 8/20 It's still sprinkling. It SAYS WE got zero rain yesterday but that's just not true. Today is supposed to be light showers with like .02 in 9f rain. I mixed up some water to check the plants. I figured a few would he light. The event horizon on the back SEEMED a little light. So did the one invthe ten. I realized it was just comparing it to the bags that were saturated. Still I ended up giving the event horizon in the back a half gallon and split the other half with the one in the 10 that dries out super fast. It's crazy. The weather just abruptly changed one day and I go from watering twice a day to hardly at all! Everything but the sherb pie and the seedling in the 10gal are vigorously flowering. Upping the nutes was a smart move. The seemed to like it. I'm gonna check later and as soon as I can I'll hit that toasted toffy with plant doctor. That's tied for furthest along in flower. I've done a bunch of research and I think this is the right move. I'll keep this updated. After this small patch of shitty weather we are goingvto get some sun amd these girls will EXPLODE! WENT BACK OVER A FEW TIMES. LAST AT SIX. I DID SOME DEFOLIATION AND PRUNING OF PLANT INTERIORS. ITS ABOUT TIME TO TREAT THE TOASTED TOFFY AGAIN WITH PLANT DOCTOR. I CAN SEE SOME SEPTORIA SPOTS. I TREATED THE EVENT HORIZON THIS MORNING. IT GOT A FEW HOURS BEFORE A LITTPE RAIN WND THEN SUNNY AND 80. I USED BETWEEN A QUARTER AND HALF GALLON ON THE INE PLANT. I MAY NOT HAVE USED ENOUGH OF THE MIXED UP SOLUTION ONVTHE TOASTED TOFFY. IT HAD BEEN WORKING AWESOME AND NOW THAT ITS TIME TO REAPPLY I NOTICE A FEW LEAVES THAT LOOK INFECTED. OVER THE NEXT WEEK ILL BE MONITORING THE RESPONS FROM THE PLANT DOCTOR. I'M CONSIDERING APPLYING PLANT DOCTOR TO THE REST OF THE GARDEN. I THIBJ THE K BICARB HAS BEEN DOING GOOD KEEPING THE PM DOWN ON THE MIDDLE GMO. I HATE THAT I HAVE TO FIGHT DISEASES. IM NOT DOING CLONES AGAIN. AND IM GOING TO BE MUCH CLEANER. THE SHERB PIE LOOKS A LITTLE OVERWATERED AND HAS SOME YELLOW LEAVES BUT MANY HAVE TURNED PURPLE AND OTHER FALL COLORS. THE PLANTS ARE AGGRESSIVELY FLOWERING AND TEMPS ARE CHANGING. STILL IN EARLY FLOWER. IVE GOT A GOOD FEELING. IVE DEALT WITH MUCH WORSE AND CAME OUT GOOD.

I installed the mesh to do Scrog with normal thread and i have done some topping in secundary stems. Everything was fine, but the smell was getting much stronger, so i started to think to install an extractor with a smell filter.

Like clockwork, all three of these girls sprouted in about 3 days. I've had %100 germination with all my 42 auto beans so far. Didn't feel like any nutes were necessary. Soil mix is about 50/50 Happy Frog and Recipe 420 Bhang. Gonna run Dirty Dozen this time around with a Co2 Dispersal Canister and see if we can grow sum thiccersonz!

Day 28 - lookin good.... checkin everything daily, adjusting as nessec. .... might start lookin at a top/trim/bend/flower plan..... Day 32 - post some ... watch the vid.. pretty sure u know whats about to happen here... lol i'm a pretty good grower... :) check out the base on both those super silver haze... that last video... shows u the perfect base and stalks and stems ..... those stalks are each going to be for a beautiful long bud... lol didn't really start with a clean glow solution.... so just kinda been winging it..... in the next week or 2 i'll think about flush both out completely, start with fresh new flower solutions, and switch to 12hr lights....... getting some awesome growth out of the 60 W on each plant..... thats 6 x 10w household led light globes..... 👍😎

Just moving branches around now with the tie wires to get an even spread under the light , heat mats are staying on to combat ambient temps of 5C , flushed them and will feed them another week of veg nutes .

0.23v tuned to 7.83Hz Plants exposed to the Schumann resonance often show greater resistance to stress factors such as drought, diseases, and pests. It is possible that these natural electromagnetic waves strengthen plants' immune systems and increase their ability to resist disease. Pretty neat, in the afternoon when the tent hovers around 84F the plants are 🙏, can visually see in time around 10 minutes after I opened the tent the temp had dropped to 76 pressure was lost, she is still chilling but she doesn't quite have that perk anymore. *Salinity3.5% - 100ml H2O=100g The concentration of salt in a solution 3.5%= 3.5g in 100ml. Growing well. Not going to top or do any training, I'll let the plant do its own thing, she is constructing foundations now for what she senses ahead. Smart girl. ✨️ Let her, do her thing, let me do mine. The voltage that is needed for electrolysis to occur is called the decomposition potential. The word "lysis" means to separate or break, so in terms, electrolysis would mean "breakdown via electricity. Green hydrogen is hydrogen produced by the electrolysis of water, using renewable electricity. The production of green hydrogen causes significantly lower greenhouse gas emissions than the production of grey hydrogen, which is derived from fossil fuels without carbon capture. Electrolysis of pure water requires excess energy in the form of overpotential to overcome various activation barriers. Without the excess energy, electrolysis occurs slowly or not at all. This is in part due to the limited self-ionization of water. Pure water has an electrical conductivity of about one hundred thousandths that of seawater. Efficiency is increased through the addition of an electrolyte (such as a salt, acid or base). Photoelectrolysis of water, also known as photoelectrochemical water splitting, occurs in a photoelectrochemical cell when light is used as the energy source for the electrolysis of water, producing dihydrogen . Photoelectrolysis is sometimes known colloquially as the hydrogen holy grail for its potential to yield a viable alternative to petroleum as a source of energy. The PEC cell primarily consists of three components: the photoelectrode the electrolyte and a counter electrode. The semiconductor crucial to this process, absorbs sunlight, initiating electron excitation and subsequent water molecule splitting into hydrogen and oxygen. Water electrolysis requires a minimum potential difference of 1.23 volts, although at that voltage external heat is also required. Typically 1.5 volts is required. Biochar, a by-product of biomass pyrolysis, is typically characterized by high carbon content, aromaticity, porosity, cation exchange capacity, stability, and reactivity. The coupling of biochar oxidation reaction (BOR) with water electrolysis constitutes biochar-assisted water electrolysis (BAWE) for hydrogen production, which has been demonstrated to reduce the electricity consumption of conventional water electrolysis from 1.23v to 0.21v. Biochar particles added to the electrolyte form a two-phase solution, in which the biochar oxidation reaction (BOR) has a lower potential (0.21 V vs. RHE) than OER (1.23 V vs. RHE), reducing the energy consumption for hydrogen production via biochar-assisted water electrolysis (BAWE). BAWE produces H2 under 1 V while eliminating O2 formation: key word "eliminating". Air with a normal oxygen concentration of around 21% is not considered explosive on its own; however, if a flammable gas or vapor is present, increasing the oxygen percentage above 23.5% can significantly increase the risk of ignition and explosion due to the enriched oxygen environment. The addition of ion mediators (Fe3+/Fe2+) significantly increases BOR kinetics. Air: Nitrogen -- N2 -- 78.084% Carbon Dioxide -- CO2 -- 0.04% Hydrogen in homosphere H -- 0.00005% Hydrogen "GAS" H2 in homosphere - 0% "Nitrogen, oxygen, and argon are the three main components of Earth's atmosphere. Water concentration varies but averages around 0.25% of the atmosphere by mass. Carbon dioxide and all of the other elements and compounds are trace gases. Trace gases include the greenhouse gases carbon dioxide, methane, nitrous oxide, and ozone. Except for argon, other noble gases are trace elements (these include neon, helium, krypton, and xenon). Industrial pollutants include chlorine and its compounds, fluorine and its compounds, elemental mercury vapor, sulfur dioxide, and hydrogen sulfide. Other components of Earth's atmosphere include spores, pollen, volcanic ash, and salt from sea spray." Although the CRC table does not list water vapor (H2O), air can contain as much as 5% water vapor, more commonly ranging from 1-3%. The 1-5% range places water vapor as the third most common gas (which alters the other percentages accordingly). Water content varies according to air temperature. Dry air is denser than humid air. However, sometimes humid air contains actual water droplets, which can make it more dense than humid air that only contains water vapor. The homosphere(where you live) is the portion of the atmosphere with a fairly uniform composition due to atmospheric turbulence. In contrast, the heterosphere is the part of the atmosphere where chemical composition varies mainly according to altitude. The lower portion of the heterosphere contains oxygen and nitrogen, but these heavier elements do not occur higher up. The upper heterosphere consists almost entirely of hydrogen, cool. 78%nitrogen as N2, a far too stable bond to be used by organisms. 20%oxygen 0.04%co2 0.00005% hydrogen When lightning strikes, it tears apart the bond in airborne nitrogen molecules. Those free nitrogen atoms N2 nitrites then have the chance to combine with oxygen molecules to form a compound called nitrates N3. Once formed, the nitrates are carried down to the ground becoming usable by organisms. Will it react with the oxygen in the air spontaneously, the answer is no. The mixture is chemically stable indefinitely. A mixture with air near the release point can be ignited, but if this does not happen then when its concentration gets below 4% it will be unable to carry a flame. Taking a small detour into chemistry here, a key concept to understanding the health impact of nitrogen-based compounds is knowing the difference between nitrates and nitrites. What Are Nitrates and Nitrites? A nitrite (NO2) is a nitrogen atom bonded to only two nitrogen atoms. Very strong bond A nitrate (NO3) is a nitrogen atom bonded to three oxygen atoms. Weaker bond The optimal pH for nitrate (NO3-) depends on the process and the type of bacteria involved. Nitrification The optimal pH for nitrification is between 7.5 and 8.6 Nitrification is the process of oxidizing ammonia to nitrate and nitrite Nitrosomonas has an optimal pH between 7.0 and 8.0 Nitrobacter has an optimal pH between 7.5 and 8.0 Nitrification ceases at pH