I'd give two pieces of advice:
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1) don't over complicate fertilization - Its really easy to read all the glogs and discussions around here about ferts and get all caught up with getting lots of different kinds of ferts, mixing and matching, time of year, blah, blah, blah... Resist that. But if you can't resist, go full in and fully learn the basic science, biology and chemistry behind fertilization so you can make intelligent, informed decisions.
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2) run good experiments - There are sooooo many things to try when growing peppers. Don't try them all in one year. Pick one or two (or more if you have enough plants) each year and run experiments. For example for 2014 I wanted to figure out if clipping early flowers is better than not, and if raised beds is better than pots. So I grew a minimum of 4 plants of each variety: 1 clipped flowers in pot, 1 clipped flowers in bed, 1 with no clipped flowers in pot, 1 with no clipped flowers in bed. Turns out I had the most consistent best results from plants that I didn't clip flowers off and grew in beds.
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Also understand what works well in one geo area may not work well in another, even within the same growing zones or even same city. Micro climates can make a big difference. For example, PIC 1 said he has something like 3 different soil mixes that he uses based on where the plants are in his yard! So take advice from others with a grain of salt. Run good experiments on your own plants to know for certain what works.
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The key is that gardening is a multi-year learning experience. You won't become a pro in a year. Even by reading as much as possible. You become a pro by being methodical year after year, and learning what works and what doesn't.Â