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Study Finds Tomatoes Thrive On Urine

samzenpus posted about 5 years ago | from the does-this-sauce-taste-funny-to-you dept.

Science 21

An anonymous reader writes "Using human urine as a fertilizer produces bumper crops of tomatoes that are safe to eat, scientists have found. Their research was published last month in the Journal of Agricultural and Food Chemistry and may help cheaply boost crops in the developing world. From the article, 'Yields for plants fertilized with urine quadrupled and matched those of mineral-fertilized plants. The urine-fertilized tomatoes also contained more protein and were safe for human consumption.'"

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21 comments

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Obligatory humour. (2, Funny)

Anonymous Coward | about 5 years ago | (#29441351)

Now this is just taking the Piss...

Re:Obligatory humour. (1)

Squeeonline (1323439) | about 5 years ago | (#29442951)

Would love to mod this funny, but no points... :-(

It's taking the piss and feeding it back to you after harvest.

Surprise? (1)

Squeeonline (1323439) | about 5 years ago | (#29442915)

Honestly, who is surprised by this? Urine contains a lot of nitrogen, water, and salts that a plant needs.

Re:Surprise? (0)

Anonymous Coward | about 5 years ago | (#29443155)

Wait... you put WATER on your tomatoes? Ewww!

Re:Surprise? (1)

Nutria (679911) | about 5 years ago | (#29449441)

Brawndo's got what plants crave. It's got electrolytes!

Re:Surprise? (1)

Nutria (679911) | about 5 years ago | (#29449521)

Urine contains ... salts that a plant needs.

Ummm, don't think so.

In the ancient world, spreading salt into the fields was one form of genocide.

Re:Surprise? (1)

Squeeonline (1323439) | about 5 years ago | (#29451523)

I know that but a plant needs a small amount of salts (naturally present in soil anyway in low concentrations). I'm not sure whether the [salt] in urine is toxic for plants. It would vary a lot anyway.

Re:Surprise? (1)

SenFo (761716) | about 5 years ago | (#29452393)

When I was a kid, my grandparents lived on a farm. There was a spot on the side of my grandfathers garage that everybody would go to pee because nobody could see you. Maybe we were peeing toxic piss, but the grass never grew there.

Re:Surprise? (1)

Abreu (173023) | about 5 years ago | (#29469873)

A few years ago, I helped clean up an abandoned house and while doing so, we found a very large tomato plant in the backyard.

We figured it had bloomed from tomato seeds from the construction workers' refuse. We ate a few of the fruits (they were good, albeit a bit small).

Later we found out the drain pipe had a leak just below that plant, making it obvious why it had grown so beautifully...

Re:Surprise? (0)

Anonymous Coward | about 5 years ago | (#29473341)

The prison niggers would like to extend an invitation to get fucked in the ass. We's would be more than ekstatics to run a train on yo mexican ass. Big Tyrone hasn't taken a mexican bitch in a long long time. We be cross the border now and look to show up on 11:30pm. Make sure to bring yo tears, we is gonna be a while.

- Signed
The Prison Niggers

Oops! (1)

Locke2005 (849178) | about 5 years ago | (#29443011)

You mean that by pissing on my neighbor's tomatoes, I was actually helping him? D'oh!

Re:Oops! (1)

Nutria (679911) | about 5 years ago | (#29449473)

By pissing on the leaves and stalks, you probably did hurt the plants.

Roots, though, are different from leaves.

Urine is sterile (0)

Anonymous Coward | about 5 years ago | (#29443891)

As we all know, urine is sterile. In Africa a surgeon used to wash his blades in cow urine. Urine has also used as a clean drink in environments where clean water does not exist.

Now, let's all pee!

I know you want to.

Re:Urine is sterile (1)

imamac (1083405) | about 5 years ago | (#29448315)

Filtered urine is used to drink and is perfectly safe. Urine does contain toxins that the body is getting rid of for a reason.

Re:Urine is sterile (5, Informative)

Tim4444 (1122173) | about 5 years ago | (#29450423)

Sort of. The liver converts the toxins, read ammonia, into a safe chemical, read urea, and that's what the kidneys filter. I'm not sure but I don't think the urea would pass through the intestine walls back into the blood stream if ingested. It's more likely that it will dehydrate you due to osmosis since the kidneys do a great job of concentrating the urea. I don't believe we have digestive enzymes that work on urea so it would probably just pass through you. As for other toxins, if the body can get it out of the bloodstream once it can do it again. There's actually an old Japanese tradition of drinking your morning piss. I don't know of any health benefits, but as far as I know it didn't really do them any harm either.

As for tomatoes, I've heard of urea fertilizers, but it's usually bad practice to put waste from humans or carnivores on crops because you can pass on E. Coli and various diseases that way.

Re:Urine is sterile (1)

Locke2005 (849178) | about 5 years ago | (#29459557)

I thought urine was actually sterile unless you have a urinary tract infection. Feces, on the other hand, is a veritable bacterial stew.

Re:Urine is sterile (1)

Abreu (173023) | about 5 years ago | (#29469777)

Urine is sterile... for about a minute before it attracts all sorts of bacteria

what to say when you drop a tomato (1)

meow27 (1526173) | about 5 years ago | (#29448573)

Piss!

Re:what to say when you drop a tomato (0)

Anonymous Coward | about 5 years ago | (#29450401)

and Vinegar!

Donor card ? (1)

jean-guy69 (445459) | about 5 years ago | (#29450653)

A type of fertilizer called purin [wikipedia.org] can involve urine as a major component. It is used at least in France, for ages. Generally the urine of cattle is used, but human urine can be used too, especially in the case for little garden where people grow vegetables for their own consumption.

Re:Donor card ? (1)

sjames (1099) | about 5 years ago | (#29455247)

Urea is a common ingredient in chemical fertilizer. It comes in pelletized form. ~100lbs in 300 gallons of water makes a good liquid application.

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