Crops
Drought-hit Kansas farmers try Kernza, a perennial grain planted once every few years
After his worst winter-wheat harvest since 2017, Bryce Black is weighing perennial grains whose deep roots reach water, hold soil and store carbon; Kernza, domesticated by The Land Institute since 2001, covered just 3,511 acres in the US last year and yields 20–40% of wheat, but cuts fertiliser, fue