The president’s idea, which involves giving rural families cash payments to grow crops and technical advice, isn’t new, but the ravages of the pandemic, climate change and market turmoil created by the war in Ukraine have given it new urgency.

The president’s idea, which involves giving rural families cash payments to grow crops and technical advice, isn’t new, but the ravages of the pandemic, climate change and market turmoil created by the war in Ukraine have given it new urgency.