BBCNEWS HARDtalk June 4, 2024 23:39:00
About low inputs but high yield, it simply doesn't apply to your own proposals. so, there's only one which has been fully commercialised so far, and that's a rice variety called pr23, which is being widely grown now in southern china. and so far there have been six harvests and the yields are the same, notjust as they began, but the same as the annual rice with which it's competing. now, you can't keep these crops in the ground forever. eventually they will have to be replaced. but by switching from annual grain crops to perennial grain crops, it means much less ploughing, much less establishm...