Bulletin #2438, Potato Facts: Spring Canola: An Oilseed Crop for Potato Growers (PDF) By Peter Sexton, Extension Crops Specialist For information about UMaine Extension programs and resources, visit extension.umaine.edu.Find more of our publications and books at extension.umaine.edu/publications/. Table of Contents: Introduction Planting Date and Conditions Seeding Pattern and Rate Seedbed Preparation and Seeding Depth Soil