Fritz Haber
The production of synthetic ammonia was acquired by Fritz Haber and Carl Bosh. Haber discovered the reaction process to produce ammonia and Bosh was able to pressurize it to complete the process. Together Haber and Bosch came up with the Haber-Bosch process that fixated nitrogen to produce ammonia that is used in most fertilizers. In 1918 Fritz Haber received a Nobel prize in Chemistry for the invention of this process. Carl Bosch also received a Nobel Prize in 1918, but for high-pressure studies. Without the pressure studies this process wouldn't be possible.