The rice field is based on a complete ecological cycle from animal waste to organic fertilizer. It recently turned into a ...

The variety of fertilizers available is dizzying. Liquids, solids, and crystals; specialty, foliar, slow release, and quick ...

Iowa has a population of 3.2 million people, but about 25 million hogs, and regulation of human sewage is much stricter than ...

Producing and distributing food is responsible for roughly a third of global greenhouse gas emissions. But food systems are ...

Manure digesters, touted as eco-friendly solutions for managing agricultural waste and reducing greenhouse gases, have limited capacity to reduce livestock-related greenhouse gas emissions, and entail ...