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August 6, 2026Journal of Plant Nutrition

Nutrient critical levels in soil and grapevines leaves to high-quality grape composition in subtropical climate

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Authors

DGDouglas Luiz GrandoCMCauan Guerra MartinsLDLucas Peranzoni Deponti

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Overview

Quantifies nutrient levels in soil and grapevines to enhance must quality in vineyards, suggesting improvements for fertilization management.

Key Points

  • The aim is to quantify critical nutrient levels in soil and grapevine leaves that influence must quality parameters for high-quality grapes.
  • Evaluated 207 vineyards in Southern Brazil over two growing seasons
  • Conducted chemical analysis on grape samples for various quality parameters
  • Analyzed soil samples and correlated nutrient content with must quality using the Boundary Line method.
  • Proposed critical levels for soil pH-H2O, organic matter, and several nutrient contents
  • Identified mean macronutrient outputs: 10.6 kg N, 44.9 kg K, 83.4 g Cu per hectare
  • Improved fertilization management based on critical nutrient levels can enhance grape quality.

Cite This Study

Grando et al. (2026) studied this question.

synapsesocial.com/papers/6a74374b764cddc9499d482dhttps://doi.org/10.1080/01904167.2026.2708055
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