A second Green Revolution? Nitrogen fixation is the process by which nitrogen is converted to ammonia, a compound of nitrogen and hydrogen that is necessary for plants to grow. Problem is, only a few plants like legumes (peas, beans, lentils) can fix nitrogen from the atmosphere with the help of symbiotic nitrogen-fixing bacteria. The vast majority of plants have to get their nitrogen from the soil, and there's not enough of it everywhere. That's … [Read more...]