As with diets, there is no ‘One size fits all’ in gardening.

Just added something to my gardening encyclopedia I thought you might be able to apply:
Key Principle: As with diets, there is no ‘One size fits all’ in gardening.
That is why for a given approach, like watering or fertilising your soil, there are often many alternatives offered in this book. Pick the one that best suits you, your circumstances, budget and environment.
In any scenario, the worst workable technique, carefully applied is better than any better technique not applied at all.