winner2011 - 2/10/2019 09:03 I’ve read that high K levels and high S can help zinc uptake. Is there any way extra applied sulfur could do this with low S soil tests? I've studied plant nutrition extensively, and haven't come across that from a reputable source. Not saying it isn't true, just saying that if it is, it's obscure. Or I've forgotten ;-) The most plausible to me is still that your plants were equally S and K def, and couldn't respond until both were applied. | 
Sulfur Question
