A long-fallow pocket of land on the edge of Point Reyes Station is once again in production, with a cover crop of buckwheat and bright green shoots of kale, collards, cabbage, cauliflower, and other fall crops. Oliver Monday, a Berkeley native who apprenticed under Sonoma’s esteemed Bob Cannard and worked for Molly Myerson of Little Wing Farm, has leased the triangular two-acre parcel on a bend of Lagunitas Creek. First he mowed, then he irrigated,…