Converting old beds to no-dig method

I planted raspberry canes, blueberry bushes, thornless boysenberry canes and strawberries here in California before I knew of the no dig method. Later, I planted rows of vegetables with the no dig method and they have been so demonstrably productive that I’m wondering if there’s a way to go back and modify the old fruit growing areas to incorporate these ideas as fully as possible. What might be the best way to do that?