2. Soil cultivation techniques


Excessive soil cultivation causes the break-down of soil structure and increases the respiration of soil organic matter which adversely affects soil aggregation. Tilling can also break-down mycorrhiza fungi and contribute to soil compaction. It should therefore be undertaken sparingly and never in wet conditions. Cultivating when vine roots are active (6 leaves apparent) enables them to take-up released nitrates. Poor soil aggregation and compaction can affect the economic productivity of a vineyard.

Best Practice
A.

Cultivate the vineyard soil in an alley no more than 3 times a year and biological amendments for nutrient management so as to replace lost organic matter.

No minimum standard guideline has been defined for Soil cultivation techniques.