Agriculture is a source for three primary greenhouse gases (GHGs): CO 2 , CH 4 , and N 2 O.
It can also be a sink for CO 2 through C sequestration into biomass products and soil …

Agriculture and the plow originated 10–13 millennia ago in the Fertile Crescent of the Near
East, mostly along the Tigris, Euphrates, Nile, Indus and Yangtze River valleys, and were …

One potential abatement strategy to increasing atmospheric levels of carbon dioxide (CO2)
is to sequester atmospheric CO2 captured through photosynthesis in biomass and pyrolysed …

High levels of charcoal C resulting from repeated historical burning of grasslands, open
woodlands, and agricultural crop residues have been reported in soils from Australia and …

… Reicosky is a research soil scientist emeritus, retired from the USDA Agricultural Research …
, providing protection from erosion and loss of C to the atmosphere. Conservation tillage (CT), …

The increasing concern for rising CO 2 concentrations from agricultural activities has prompted
the need to better understand the flux of greenhouse gases to the atmosphere. This work …

Significant increases in root density, crop growth and productivity have been observed
following soil additions of biochar, which is a solid product from the pyrolysis of biomass. In …

In many crop models, light intercepted by a canopy (IPAR) is calculated from a Beer's Law
equation: IPAR = PAR × [1 − exp(−k × LAI)], where k is the extinction coefficient, PAR the …

Greenhouse gas emissions from soil depend on land use, cropping systems, and tillage
methods. The impact of 30 years of continuous corn (Zea mays L.) with moldboard plow tillage …

A better understanding of C turnover, with estimates of root‐derived C, is needed to manage
soil C sequestration. The objective was to evaluate the long‐term treatment and …