Garden Pests and Diseases: Deficiency in Lacinato Kale, 3 by MCFnPNW503

MCFnPNW503 wrote:
Two out of six of my Lacinato Kale is suffering from yellowing/slight browning on new growth. I am a completely organic grower who follows crop rotation cycles and annually applies inoculated wood chips as a mulch on my entire garden. I applied blood/ bone, kelp meal, worm castings, Sea 90 minerals and a lot of well-rotted compost before I mulched as a top dressing in March. New growth was lush and green until last week when I noticed this problem. Any thought as to what could be causing this problem?