What I am saying is true regardless of my location. It’s true and mentioned even in the materials you posted yourself. Geoff Lawton said you can flush the built up salts down below the root level, and the image you posted said you can send built-up salt down below root level. But you need to address compaction, drainage, and organic matter for that to work.  

We’ll what zone you live in?  

I meant to say, a small amount of salt in the water helps dissolve built
-up salt in the soil.

When you follow JADAM step by step, you create a micro-climate of moist, well drained, balanced soil.

A photo you posted says table salt is the most soluble. It will leach away quickly. Sea salt is basically table salt. You did not destroy your soil with sea salt. Show some respect  

1. Fix deep compaction and make sure your beds have good drainage + organic matter
2. Flush the soil 3 times for 90 minutes before planting, with diluted JMS (a little salt helps dissolve soil)
3. Maintain soil moisture with irrigation throughout growth