Whether you grow food on a spacious homestead or are digging into your first urban garden, ditching the plant-by-rows approach and instead adopting intensive gardening techniques can help you grow a more productive garden that's also more efficient to manage. These methods will open up a new world when it comes to small-space gardening, which can be so much more than just a few lone pots on a balcony. If you do it right, you can grow more food in...