The company seeks to enroll about 1,200 row crop farmers in its Bayer Carbon Initiative in the first season, with a goal to scale up in upcoming seasons and ultimately expand to other countries, company executives said.

The program is the latest in a string of recent environmentally focused initiatives by agriculture companies, which have been criticized for using harmful chemicals and not doing enough to stop deforestation in Brazil.

Bayer is working with other partners including Brazil's Embrapa, the government's crop research agency, to build a market for trading the carbon credits created, executives said.

Global commodities trader Cargill Inc kicked off a project this spring targeting greenhouse gas emissions and fertilizer runoff in Iowa, while agricultural cooperative Land O'Lakes Inc last week announced a multi-year partnership with Microsoft Corp to tackle sustainability and technology goals in the food system.

The announcements came after the U.S. Treasury Department in May clarified a federal tax credit designed to spur investment in carbon capture and sequestration projects.

Bayer's program requires that farmers enroll in its Climate FieldView digital farming platform, where growers would log data about their eco-friendly farming practices such as no-till farming or planting cover crops. Those claims could then be verified by satellite imagery.

Bayer would compensate growers for sequestering carbon and pay them in cash or credits to buy products on its Bayer PLUS rewards platform.

"If farmers are sequestering carbon to the benefit of society and the planet, they should to be rewarded for it," Brett Begemann, chief operating officer of Bayer's Crop Science division, told Reuters.

He declined to disclose the cost of the program, and said the value of the carbon that is sequestered would be dictated by the market.

"At the end of the day, we have to have a clear line of sight that this has to contribute to Bayer's bottom line and benefit our share owners as well."

By Karl Plume