Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hypothetical relationships between grain yield and seasonal methane emission for areas with specific sets of environmental conditions causing differences in overall agronomic productivity (lines 1–4) and across such areas, for “average production” (bold broken arrow).
