SoilSoil health & structure

Soil biology & mycorrhizae for soil health & structure

The impact, measured

82 /100

Time horizon: 2–4 seasons

Why it works

Hyphae produce glomalin, which cements aggregates, and structure the biological network that underpins soil fertility.

What to measure for this pairing

Mycorrhizal colonisationAggregate stability

Why this goal matters

Soil health is the foundation of regenerative viticulture. A soil with good structure, biological activity and organic matter infiltrates and holds more water, releases nutrients gradually and supports a vine that leans less on external inputs.

It is measured by organic matter, aggregate stability, infiltration and soil life (earthworms, microbial respiration). Every one of these responds to how you manage cover, tillage and added organic matter — and all are recordable season over season.

Goal indicators

Soil organic matter (%)Aggregate stabilityWater infiltration rateEarthworm count / soil respiration

Market & certification: Increasingly required by sustainability schemes and buyers auditing soil practices.

How to implement the practice

  1. 1Keep living roots year-round with a permanent cover.
  2. 2Avoid tillage that ruptures the hyphal networks.
  3. 3Moderate phosphorus and soil fungicides that inhibit the fungi.
  4. 4Consider inoculation in new plantings or degraded soils.

Frequently asked

Is it worth buying mycorrhizal inoculants?

In degraded soils or new plantings it can help, but in healthy soils the fungi are already present — the return comes mostly from letting them thrive.

What harms mycorrhizae most?

Frequent tillage, excess phosphorus and some soil fungicides. Reduced tillage and balanced nutrition are the best allies.

Same practice, other goals

Same goal, other practicesSoil

Related reading →Copper in organic viticulture: the limits, the maths and how to stay under them

How GrapeFlow helps

The proof certification and buyers ask for — logged by plot and date.

Electronic field notebook

Log every operation — cover sowing, grazing, composting, mowing — by plot and date, with an audit-ready history that proves the practice over the years.

Plot registry & map

Every practice tied to the right plot on the map, with area, variety and history — so you know where you did what and can compare blocks.

Sustainability & carbon-footprint module

Water, energy, fuels and ecological infrastructure in one place, with the carbon footprint computed per season and per bottle.