Using no-till and corn-soybean.

• Position: SCIENCE SCENE - Brief article

Using no-till and corn-soybean rotation practices in farm fields significantly can reduce nitrous oxide emissions, according to Tony Vyn, professor of agronomy at Purdue University, West Lafayette, Ind. Nitrous oxide is the third-most abundant greenhouse gas in the atmosphere, but has about 310 times more heat-trapping power than carbon dioxide, in part, because of its 120-year life span, reports...