We aren't all going to become full-time farmers who reduce their carbon footprint to zero, but Ben Raskin suggests that gardeners can always become more efficient while enjoying food raised with their own hands. Here Raskin shares 60 planning-for-yield guides for key crops, so that you can work out how to make the most of the green space you have got—from a balcony container to a sprawling garden—with tips on what to grow easily in it, which crops you can eat straight away, and how much you will harvest seasonally for zero waste.