The following submission statement was provided by /u/tonymmorley:

>"After more than 9,000 years in cultivation, annual paddy rice is now available as a long-lived perennial. The advancement means farmers can plant just once and reap up to eight harvests without sacrificing yield, an important step change relative to "ratooning," or cutting back annual rice to obtain a second, weaker harvest."

Between 1961 and 2020, global rice yields have grown by 146%, from 1.87 tonnes per hectare to 4.61 tonnes per hectare. These increases in rice yields, largely driven by improvements and access to fertilizer and mechanized agriculture; have helped feed the world. 🥣

China's rice yield has improved even more dramatically over the same period, by some 245%, from 2.04 tonnes per hectare in 1961 to 7.04 tonnes per hectare in 2020.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/yumnfi/farmers_in_china_and_uganda_move_to_highyielding/iwa6k0b/