WAMU 88.5 - American University Radio | The Mind Is Our Medium
Now Playing

Nitrogen Study Could 'Rock' A Plant's World

All plants need nitrogen to grow, and a new study says some plants get this nutrient from a surprising source. Conventional wisdom believes nitrogen for plants starts in the air and is converted by microbes in the soil into a usable form. But a report in the journal Nature finds that some nitrogen comes directly from rock. This discovery has implications for global warming.