[rmason]

Smart plants that turn red when their roots reach explosives have been around for close to twenty years.

Why have they not succeeded? Near as I can tell the Danish company that launched them experienced huge pushback because they were GMO's and this was the height of anti-GMO hysteria in Europe. The charities that would fund distribution wanted nothing to do with GMO plants - even if they saved lives.

I found one study that said the rats were more cost effective. The seeds had to be flown over the field and a great number of them refused to germinate.

Years later grass started being seeded with a moist paper mulch that contained a small amount of fertilizer. Would it work with these seeds? Far as I can tell the Danish company abandoned development of the product.

https://commons.wikimedia.org/wiki/File:Plants_that_change_c...

[Nitrolo]

That is incredible. In the literal sense of the word, I thought you were joking until I was halfway through your post.

Do you have any more links? I'd love to learn more.