So I need to add a Surfacant to the DynaGro Solution so the spray sticks and is more absorbed? I was under the impression that you need to rinse the supplement off of the leaves after a few hours or you could damage the leaves ? Is it safe to eave this stuff on there or do we need to rinse the leaves after a while?
It must stay on to do any good, reason why God created surfactants.
Why would you apply it only to wash it off? Spray both the top and bottom of the leaves til runoff. If you don't have easy access to a surfactant then
Ivory liquid dish soap will work as a decent spreader. There are many good surfactants available in smaller quantities - Red River, Hi-Yield Spreader-Sticker for example. ALWAYS spray just a few branches/leaves first as a test if you're not familiar with the product or the response of a particular plant material. I've learned the hard way let me tell you.
Also, just a thought. I often see people "throwing" stuff at their plants thinking it might help, feeling that they may have a deficiency. They're fishing or trying to push their plants, both which will get you in deep doo doo. Like using pesticides, confirm what the issue is before taking action that not only may be a waste of time and materials but may produce harmful results.
I use foliar sprays only as a supplement. Root uptake is still the best avenue regarding nutritional uptake. Also, get familiar with the concept of nutritional antagonism. It's very important to understand that an overage of one element will cause a lockout or deficiency of one or more. Good example is high phosphorous foods which can cause a deficiency of micros.
BTW, morning sun is your best sun so what you're doing sounds good. Just go easy regarding sunrise to sunset exposure or you'll end up with leaf scorch, shock.
Good luck