Soil and soil science

Recycled green waste offers alternative to fertilizer

Doctoral student Valentina Roel is looking at ways to use food scraps and yard waste as alternatives to nitrogen fertilizer for crops. When processed, the leftovers and garden trimmings being diverted from state landfills might be effective substitutes, because they contain both nitrogen and carbon in forms that promote soil health.

They also provide a path for slowing climate change.