Here's the third and final flush of peppers from my mild jalapeno plants. These peppers are huge, thick walled, and loaded with that classic jalapeno flavor, but absolutely no heat.
http://www.johnnyseeds.com/vegetables/peppers/hot-peppers/felicity-f1-pepper-seed-3771.html
I started the seeds in my indoor nursery using Sunshine Mix #4. When I put the starts in the ground, I added a trowel of composted steer manure, a handful of Garden Tone (organic fertilizer 3-4-4), and a tablespoon of Epsom salt. After they started flowering, I started side dressing with bone meal. Next year, I'll add bone meal to the soil as soon as I set the plants as well as adding a second application after fruits start appearing.
The plants got so loaded down with these heavy peppers that trellising became absolutely necessary to keep the plants upright.
I ran two rows of these peppers. One row was arranged with one plant every 20". The other row was arranged with 3-4 plants every 24". The row planted in clusters produced much larger plants, larger fruits free of any checking, and a much higher yield density.
Please keep in mind that I only experimented with one variety of pepper. Applying this method to other pepper types might not yield similar results!