[Husker24]

Liquid Nitrogen? I think they mean Anhydrous Ammonia which contains Nitrogen.

[DannyTN]

Liquid Nitrogen?

You need very cold hardy plants to fertilize with liquid Nitrogen.

[LumberJack53213]

I think the meant UAN solutions, such as 28% and 32% liquid nitrogen, are made up of different forms of nitrogen. 28% liquid nitrogen is 50% Urea, 25% Ammonium and 25% nitrate.

[Moltke]

That caught my eye as well.

Did a little digging (heh!) and it seems they do actually use LN₂ in bringing out the fertilizer.