Pecan Links
University of Georgia - 2017 Mouse-Ear
University of Georgia - 2018 Nickel Deffiency Prominent in Cold Soils
University of Florida - Nickel Nutrition in Plants
USDA - Pecans and Nickel
USDA - Beneficial Effects of Nickel in Pecan Production
Southeast FarmPress - Using nickel to solve 'mouse ear' issue in pecans
Northern Pecans - Container Grown Pecan Trees
Plant Physiology - Nickel and Ureides in Pecan Foliage
River Birch Links
ResearchGate - Nickel for River Birch (Betula nigra)
Daylily Links
USDA - Nickel Suppresses Daylily Rust
AHS Daylily Dictionary