For sure there is at least 6 ways to ’correctly’ do everything!
Yep, there appear to be many ways to run a successful system. Although I just have small raised garden beds, I have a number of different ways of growing my food and some are more successful than others. I have what I would call 1) normal raised beds, 2) hügelkultur raised beds, and 3) elevated sub-irrigated raised beds.
This year we had a terrible drought all summer long. Essentially, we had no rainfall from about mid-May till the last week of August. Normally, I mow my lawn twice a week throughout the summer months. This year, I stopped mowing about mid-May and only now have started mowing the lawn - mostly to get the leaves that are falling on the ground. Anyway, no natural rainfall this summer.
In my main garden this year, without a sprinkler system to water the plants, the "normal" raised beds dried up very fast and almost nothing produced. My hügelkultur raised beds in the main garden produced food most of the summer, but dried up sometime mid-August. The difference between the hügelkultur and non-hügelkultur raised beds was almost like night and day and the wood base in the hügelkultur raised beds held on to water for most of the summer.
I built some new hügelkultur raised beds in my backyard, by the chicken coop, and they got water from my house sprinkler every other day. Those new hügelkultur raised beds exploded with produce. Just goes to confirm how vital water is to all living plants.
I planted beans in my elevated sub-irrigated planters. They are like raised beds, up on legs to make them waist high, and they have a reservoir of water in the bottom of the planter holding about 15 gallons of water. In a "normal" summer, with rainfall maybe once or twice a week, I have had to refill these sub-irrigated planters maybe 3 or 4 times for all summer. This summer, with our drought, I was refilling the sub-irrigated planters 2-3 times per week. But the bean plants exploded with produce and I could not have been more happy with the results.
I used my chicken run compost in all my raised beds, but without water, nothing grows even in good material. I have lots of wood chips, leaves, and grass clippings in my chicken run compost. As it ages in the chicken run, it turns into black gold. Having said that, I found out that even the best growing material is not good enough unless you have water for the plants. This year's drought taught me some valuable lessons in my garden failures, and successes in my growing methods.