My pecan started getting brown tips on the leaves at the end of it's growing season the year before last and it's progressed to the emerging spring leaves.
this post was submitted on 06 Nov 2024
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Possibly a potassium deficiency. Potash additives could help to address that, but there are a number of products that can increase the available K.
I have ash from my tile fire that we use to warm the house and cook bones from meals in. Will that do?
I also have a detailed reply to Seleni here regarding it's environment: https://aussie.zone/comment/13041834
That will help, generally wood ash is about 5 percent potassium. Don't overdo it and try to fix it with one application - you could alter the pH in the immediate root zone in a way the pecan won't appreciate.