Ratio Vitis: Producer Guide (1st edition, version 0.1.0)

English guide for growers, field technicians and thesis students using Ratio Vitis 0.1.0, a free app that measures the vineyard as a complex adaptive system. It walks through the 16 blocks —vineyard and trial design, soil, climate, soil–plant–atmosphere water relations, fertility, biomass, productivity, energy, statistics, complex system, dashboard, regeneration, risks, sustainability, outlook and report— with what to measure in the field, how to read each result and decision rules, using the case of the cooperating Perlet table-grape vineyard in Mata de Zarza, Puente Nacional, Veracruz (establishment guide, thesis proposal and 2025 ERA5 climate). It includes a printable field sheet, troubleshooting, a glossary and a QR code. 1st edition, November 2026. The Spanish version (Instructivo del Productor) is a separate record with its own DOI.