Manganese deficiency - how to deal?
My big Mammoth Jalapeno is into its 4th year. I didn't prune it much and last year's leaves show the inter-venous yellow patches of manganese deficiency. This year I washed the roots and moved into a 7 (?) Gal 5:1:1 pot. I figured whatever deficiency there was in the old soil wouldn't dare to appear in the Holy Mix, yet it has.
New growth isn't vigorous. Now the new leaves are also showing yellow spots. (I'll post pics tomorrow.)
MG fert shows only a small amount of Mn, so how do I - or should I - address the deficiency? Does it depend on pH, other chemistry? Inquiring minds want to know.