The issue with moving to no-till is how do you control the weeds. That was the key technology and the biological piece, when they invented genetically modified canola to be herbicide tolerant initially to Roundup and now there are several others that are being used. That fixed the weed problem, which allowed farmers to go into even the most weedy fields that they had. Typically, in the past, they would have summer fallowed that and just tilled it to keep the weeds down and then gone into it fresh a year after, but they lose a whole year of crop.
It's very difficult to organically go to zero-till because it's difficult to manage the weeds effectively in an organic system.