Calling out to anyone who has ever grown mangels (which I'm growing for winter chicken feed): I'm laying out my garden plan for the Spring, and in a week or so will put in my earlier crops (carrots, peas, onions, etc). But, I want to make sure I leave enough room for mangels. I have enough seeds for at least 150ft of mangels (the garden is 55 ft long). Here is the question, what is the minimum space between rows? I have an old Planet Jr. push cultivator, so I can get my rows fairly close and still keep them weeded, but I'm new to this vegetable and don't want to overcrowd. Also, how far apart to you thin the mangel plants within the row?