Quote:
Originally Posted by Cole_Robbie
I was always against the concept of foliar feeding in principle, but there was a very detailed discussion on here recently about kelp's real effect being from its natural growth hormones rather than from the micronutrients. A plant should be able to get everything it needs from its roots, and the only place of foliar feeding in large-scale agriculture is the correction of micronutrient deficiencies. Spraying is just an easier way to deliver the micro to a large field.
BUT...there are legions of home gardeners who swear by foliar feeding and have great results with it. The growth hormone theory would explain everything.
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That's about where I've been with the whole thing. My thought is that is may also be foliar feeding may be changing the balance of the microorganisms around the plant. That easily could change the growth regulators around in the plant.
Do you happen to have a link to the study?