Soil tests and leaf tests: why they need to be read together
If a soil result and a leaf result ever seem to tell different stories, this is why, and how to work out which one to act on.
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Orchard nutrition articles
Written from real issues seen across ION's kiwifruit and avocado blocks: what the data shows, how it changes the diagnosis, and what to do next.
In print
Published in NZGrower & Orchardist
Soil, Leaf and Input Data: Turning Measurements into Agronomic Decisions
NZGrower & Orchardist, April 2026 (Vol. 99, No. 3)
Drones for Horticultural Decision-Making
NZGrower & Orchardist, September 2025 (Vol. 98, No. 8)