Using Urine As a Fertilizer

Discussion in 'Organics' started by nature is nurture, Jun 26, 2007.

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    nature is nurture

    nature is nurture Active Member

    I found this at hg420 and thought it was pretty informative (props to BuddyNugs) so here it is, also i took out a couple of not-so-important paragraphs to meet the 10,000 character restriction

    a link to the original thread can be found at HomeGrown420 - Can I use my urine as a fert. (OG refugee thread)

    Can I use My Urine as a Fertilizer?

    Sure you can. In fact Sweden has tested a full scale urine ‘recycling’ program. Among their findings they have discovered that urine is a complete fertilizer for farm use, lowers the environmental impact of wastewater, improves recirculation of the 3 main nutrients, and that the hygienic risks are negligible if handled properly. Nature has been making use of urine for centuries before humans had even mastered the art of agriculture. Animal wastes contain nutrients that plants needs, and in return they provide us with nutrients we need. It is a circle that has been broken only in recent years, but before you go using your pots as a urinal you will need to be aware of how to use your urine. DO NOT PEE DIRECTLY ON OR AROUND YOUR PLANTS. You will burn them. The following will detail everything that you need to know to be successful.

    Use in Soil
    Pure concentrated urine will burn your plants; it must first be diluted with water. Typically a ratio of 1 part urine to 10 parts water is effective. Some have gotten away with a slightly higher ratio on unusually hungry girls. It is recommended that you do not exceed 1:10, even though a nutrient burn with urine is rare, the smell can be unpleasant, and salts will build quickly, at higher concentrations. For younger plants start with a ratio of 1:20-1:30 and work your way up. As always do not fertilize germinating seedlings. Wait until the cotyledons (little round leaves) have fallen off before beginning any fertilizer regiment. Also it is not needed every water, every other or every third is sufficient. Let your plant do the talking, if she is a nice dark green then lay off a little, use a weaker solution and lower frequency, if she is getting on the yellow side then step up the strength a bit. Note: Urine can have a high salt content, depending upon your diet. I recommend that when you water with plain water, you allow some run off (approximately 1/8-1/4 volume of your pot) and toss it, this should rid your soil of excess salts.

    Use in Hydro
    About 8 ounces (1cup) for every 3 gall or reservoir water has been effective (thanks foto) but you should adjust according to your conditions, plant needs, and smell issues. The nitrogen in urine (ammonia and urea) must first be consumed by bacteria as food. The bacteria then store the nitrogen in the bacterial protoplasm. As the Bacteria die, they liberate the stored nitrogen as nitrate, sort of like a time release capsule, to be taken up by the plants. In soil this is no problem but in hydro setups there may not be enough bacteria culture to breakdown the urea and ammonia. Therefore it will be a good idea to drip your Res water through a porous material that can support a bacteria culture such as lava rocks, ceramic bio filter material, foam, sponge. It is up to you; it does not need to be fancy just able to support beneficial bacteria. This step may not be required if your root mass is large enough or if you have a trickle system through a porous medium like rockwool or coco. To get a good start on your bacteria culture you can get some bio-filter booster liquid from any aquarium shop. This liquid contains "good" bacteria that will help you develop a thriving population use as directed (usually a few drops per gal.)

    Nutrient Levels (approximation, will vary according to diet)
    Alanine, total ..... 38 mg/day
    Arginine, total ..... 32 mg/day
    Ascorbic acid ..... 30 mg/day
    Allantoin ..... 12 mg/day
    Amino acids, total ..... 2.1 g/day
    Bicarbonate ..... 140 mg/day
    Biotin ..... 35 mg/day
    Calcium ..... 23 mg/day
    Creatinine ..... 1.4 mg/day
    Cystine ..... 120 mg/day
    Dopamine ..... 0.40 mg/day
    Epinephrine ..... 0.01 mg/day
    Folic acid ..... 4 mg/day
    Glucose ..... 100 mg/day
    Glutamic acid ..... 308 mg/day
    Glycine ..... 455 mg/day
    Inositol ..... 14 mg/day
    Iodine ..... 0.25 mg/day
    Iron ..... 0.5 mg/day
    Lysine, total ..... 56 mg/day
    Magnesium ..... 100 mg/day
    Manganese ..... 0.5 mg/day
    Methionine, total ..... 10 mg/day
    Nitrogen, total ..... 15 g/day
    Ornithine ..... 10 mg/day
    Pantothenic acid ..... 3 mg/day
    Phenylalanine ..... 21 mg/day
    Phosphorus, organic ..... 9 mg/day
    Potassium ..... 2.5 mg/day
    Proteins, total ..... 5 mg/day
    Riboflavin ..... 0.9 mg/day
    Tryptophan, total ..... 28 mg/day
    Tyrosine, total ..... 50 mg/day
    Urea ..... 24.5 mg/day
    Vitamin B6 ..... 100 mg/day
    Vitamin B12 ..... 0.03 mg/day
    Zinc ..... 1.4 mg/day

    approx 2 liters is excreted /day.

    Human urine is a great source of auxin, in fact one of the most potent auxins can be found in human urine; indol-3-acetic acid or IAA. Among many things auxin is known to stimulate flower growth, promote ethylene production, and stimulate root growth.

    I have gone though an entire grow using urine without any deficiencies, but many feel that during flowering your phosphorus levels are too low. If you desire, a bloom fertilizer may be used in tandem during the flowering phase.
    A tea made with the Russian comphry plant (3.6-1-10.6) is an excellent organic bloom fertilizer for those of us who do not wish to use chemicals at any step. Also a tea of bone meal, or bone meal in your soil mix is probably the best way to add Phosphorus.

    In addition I would, and have, cut back on the amout of urine used in the flower period (both frequency and consentration). There is some evidence that Nitrogen in excess will inhibit flower growth, and increase your 12/12 time.

    Your body can only absorb about 10-15% of a multivitamin/mineral pill the rest is flushed out with your urine. Taking a multivitamin/mineral about 3 hours before your urine collection can give you many vital micro nutrients.

    A balanced and healthy diet means balanced and healthy urine. Keep fit and eat well and you should have nutrient rich urine and happy plants.

    The PH value for human urine can range anywhere from 5 and 8.5 but most often is found between 5.5 and 7.5 in healthy individuals with a balanced diet. A value of 6 is average. High protein diets can lower PH (more acidic) and Vegetarian diets raise PH values (more alkaline). Urinary infection will increase PH value. Test your PH and lower it (coffee, lemon juice, or vinegar are great organic PH downs) if any higher that 6, especially if in a hydro system, or increase your protein consumption. If the soil you are using is fairly acidic, like peat moss you will want to make sure you are not dropping it too low with acidic urine; dolomite lime can help you buffer this up, or increase your vegetable intake and lower your protein.


    It Works
    Tried and true. In my (and a few others) opinion it works as good as commercial fertilizers when used properly. A side by side clone to clone test has not yet been done (to my knowledge), but there is no question that urine produces healthy, frosty, dank nugs, as good as anything out there.

    You can't beat free can you? Not likely. Weather you are growing for pleasure or profit saving money is something that I think we all desire. If you have no problem with spending the money, then go right ahead. Call it ghetto if you want, I call it natures gift, and I intend to make the best of it.

    It’s like fertilizer on tap. No hasty visits to the hydro/garden shop. No “I’ll have to do without for a while”. It’s always there when you need it.

    Environmentally friendly
    Many of us would like to preserve the earth. Well organic fertilizers are the way to go if this is part of your ethos. Chemical fertilizers are produced from petroleum products, natural gas, and coal. Minerals are made more soluble with acids. After the compounds are used by the plant the contaminants left over in the soil can become poisonous and over time can leave the land depleted and ‘dead’. Using organic fertilizers closes a cycle of life that has existed for millennia. We feed the plants and they feed us, much like the oxygen and carbon dioxide cycle.

    Urine in your compost pile is probably the best way to get extra Nitrogen into your mix.


    Salt content
    Human urine will contain various salts. Depending on diet your urine can contain up a max of 2.2% salt, this is because the human kidney cannot concentrate salts to greater than 2.2%. On average salt content will be about 30g/L Total dissolved solids constitute about 5% of urine volume. As previously stated it will be to your benefit to allow some run off when watering and toss it, this will rid your soil of excess salts.

    Infections and parasites
    Hygienic risks are negligible, unless the urine comes in contact with pathogens after leaving the body. The urine of a healthy person is sterile in the bladder. If you have a urinary tract, or kidney infection your urine will contain bacteria that can infect others. It is quite impossible for the infection to be passed through the plant, bud or smoke. If you are sick the majority of pathogens that can transmit disease will die within 24 hours of leaving the body. Infections will increase both your salt content and PH values, and can contain bacteria that consume nitrates.

    Urine fertilizing is not an exact science. Exact nutrient levels and concentrations cannot be accurately established without the proper equipment. Notwithstanding some trial and error is necessary in every fertilizer regiment. Certain strains can have differing tolerances, different growing conditions and methods vary in their ability to deliver nutrients reliably.
    Aruanda and abudsmoker like this.

    edsthreads Well-Known Member

    golden flowers?

    Mark. Well-Known Member

    seen on the news 2 nite a woman drunk her own piss all her life an there lookin in2 it 4 cures 4 cancer an stuff lol

    SHOOT2KILL66 The Gardener

    im going 2 have a shit on my m8,s plants and c what happens
    the widowman

    the widowman Well-Known Member

    you guys don't half talk a lot PISS sometimes man!!! (if its organic give it a try)

    MRbudsmoker Well-Known Member

    im growing bagseed. im gonna piss all over it and christen it and name it "Buds golden shower power" lol
    abudsmoker likes this.

    Token Well-Known Member

    This grow I'm going real organic I've been using my urine as nitorgen for my plants it's cheaper. haha:mrgreen:
    abudsmoker likes this.

    SmokerE Well-Known Member

    fuck it...we put bat shit, cow shit, worm shit, molasses (who the hell eats that crap?), dusty ass perlite, the list goes on and on. Piss I'm sure aint' gonna hurt it none.
    PoTSD and ChefKimbo like this.

    shamegame Well-Known Member

    You don't REALLY know the full effects of using your own unprocessed urine in your grow. You don't know
    your exact state of health.If it's your garden for your own personal use and only yourself then go for it-if
    you plan on sharing or selling any don't piss on em, as others may share your love for pee plants.

    At least boil it or something-ick.
    abudsmoker likes this.

    Woodsman Well-Known Member

    I agree that just pissing on plants that you are going to consume later is just plain gross.

    Really though, if you boil it, you are just going to evaporate the water and concentrate what makes it piss (salts, toxins in your body, etc). Urine is sterile, so there is really no reason to boil it.

    Still though, I don't want to smoke piss plants. :neutral:
    abudsmoker likes this.

    Reprogammed Well-Known Member

    I don't think it would really affect the flavor of the bud if the plant does take a liking to it.

    I would make sure I have no worms or anything transmittable to plants before i go this route.
    abudsmoker likes this.

    SHOOT2KILL66 The Gardener

    your house will smell like a open piss pot

    an thats what u will be left with pisspot lol

    Token Well-Known Member

    true it does smell but I can the plants pick the nitrogen up quicker it doesn't hurt your plant it just stinks alil.

    fdd2blk Well-Known Member

    you pissers don't deserver to grow weed. piss off!!!!

    eatAstar Well-Known Member

    Amen Smoker. I mean, if you think about it, compost usually consists mostly of manure, or shit as you put it, and I would think that those of you who are repulsed by urine would be even more so with fecal matter. That is a very good point you bring to the table, and valid as well. I think most people just have a sort of mental block against human excretions as fertilizers/composts. It's natural, is it not?

    But hell, to each his own. Everybody does their own thing, and that's another part of cannabis culture that is exciting: the variations between plants even of the same strain. According to how it is grown, cannabis can have differentiations in taste, smell, texture, and color, and THAT is what makes it so special. There is one thing we can all agree on, however. Cannabis is one HELL of a plant!!! :blsmoke:
    ChefKimbo, Aruanda, estee and 3 others like this.

    Woodsman Well-Known Member

    I know, but I feel distanced from it when it is animal manure in my compost, but mixing your own piss with water seems like too much to me.

    I am trying to convince myself to do it, but it just doesn't feel right. >.<

    fdd2blk Well-Known Member

    mushrooms grow on cow pies. EAT SHIT!!!!!!
    estee and Silky T like this.

    SmokerE Well-Known Member

    Hell, messing with that miracle grow organic, putting my hands in what smells like (and probably is) chicken shit. Hell what can be worse?
    estee likes this.
    nature is nurture

    nature is nurture Active Member

    way to have an open-mind, man...

    fdd2blk Well-Known Member

    been doing this for 20 years and have never even considered pissing on my plants. that's just fucked up. way to treat the things you love.
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