Wouldn't that mean that feeding your plants will provide the soil the energy (EC) that water only will never accomplish? My soil is loaded, and most people would say overloaded. If I just watered, believe me, bugs would happen. Giving a balanced feed almost over rides my slightly out of balance soil. So that must mean something. It can work the other way too. Good soil doesn't mean healthy plant, as you can feed the wrong elements at the wrong time of year. Balance, balance, balance.
However, wouldn't one assume that balanced soil, with a balanced feed is the answer?
Also, Jidoka. When I say zero, I mean zero. I have a soil probe from Germany that does a great job. However, not sure why but soil tests always display the EC about double what my meter says. Must be some conversion rate that the labs use. It was amazing sticking my probe in hundreds of........... soil pots............... and finding how many people are growing with zero conductivity. All of them were in light weight soil.
The EC I shot for all year was to stay above .5 and below 1.3. It was a roller coaster ride though. Feed and top dress, probe the next day and the ec was up to 1.3. I would test exactly the same amount of time after the same amounts of water volumes applied ensuring mostly even saturation levels for accurate EC testing. The next day the EC would dip. A week later the EC would need to be raised again. I would be able to bring her back up with some liquids, but after about 2 - 3 weeks, it would need another top dress. Which also lead me to believe a conversation with GreenHands was accurate, about the N cycle being burned up in about 3 weeks. This conversation was about "flushing" before harvest, but correlates to this conversation as well. N drives EC.
As for top dresses, the main ratio's are easy. 1-2-1. It's the micros that need attention. I really want to find a company that will make a custom blend, that I can adjust the micros with sulfates. Then add a shit ton of gypsum, lol. The main problem with top dresses are too high Fe in our organic world. Need to find a way to leach Fe.