Vineyard Management Blog

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Juicy red grapes rest on a concrete block against a brown background.

Petiole Sample Variability: The Hidden Cost of Inconsistent Sampling

Inconsistent petiole sample results between blocks on the same day often stem from inconsistent sampling methodology. This post details a step-by-step protocol for standardized petiole sampling, including specific leaf selection, timing, and handling, to improve data accuracy and guide better nutrient management decisions.

September 22, 2026

6 min read

#petiole sample#variability#sampling error

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