He may have mentioned it, not sure. Shiva talks about it in the vid from around 4:30:
'When did it start? The chemical fertilisers are a by-product of Hitler's regime. The IG Farben group of, cartel of corporations combined with Standard Oil of the US used fossil fuels to fix atmospheric nitrogen by burning fossil fuels at very high temperature.'
Well, yes they continued and expanded it (Carl Bosch who worked with Fritz Haber on the initial experiments later founded IG Farben) but that's not where it started. The mention of Standard Oil suggests she's confusing fertilisers with the production of synthetic oil, which SO and IGF did indeed collaborate on:
'A second cost-intensive project under the purview of Carl Bosch aimed at the production of synthetic fuels. With this idea in mind, Bosch had already acquired (through Hermann Schmitz in 1925) the “Bergius Patent” for a process to convert coal to oil by liquefaction under high pressure. I.G. Farben and Standard Oil of New Jersey agreed to jointly develop high-pressure liquefaction in a September 1927 contract that also delineated a formula for the allocation of potential licensing revenues. Two years later, I.G. Farben sold all liquefaction rights outside Germany to Standard Oil for 35 million US dollars (at the time more than 149 million RM) and took a 20 percent share in a joint holding company with Standard Oil, as the two corporations defined various spheres of interest. A common corporate framework for these agreements was established in 1930 with the Joint American Study Company (JASCO) headquartered in Baton Rouge, LA. The production of synthetic oil had begun at the I.G. plant in Leuna in 1927, but new crude oil discoveries caused the world price to fall sharply. Whether the project should continue became a controversial question within I.G. Farben, as the very high costs up to that time had produced few signs of success.' - http://www.wollheim-memorial.de/en/produktpalette_ig_farben_en
The real history of synthetic fertilisers and pesticides, tied to WW1 manufacture of explosives and poison gas, is bad enough IMO without pinning all the blame on the nazis. Here's a good article I posted before, looking at the life & work of Fritz Haber: https://www.lrb.co.uk/the-paper/v28/n02/steven-shapin/tod-aus-luft