Which item is not listed as part of soil preparation when establishing a vineyard?

• A. Irrigation planning
• B. Rock removal
• C. Subsoiling
• D. Weed management

Answer: (A)

Soil preparation is about shaping and improving the planting bed itself so vines can establish quickly and roots can grow without obstacles. Removing rocks helps create a smoother, more workable soil surface and prevents root injury or equipment damage. Subsoiling breaks up compacted layers, improving drainage and allowing roots to penetrate more easily. Weed management reduces competition for water and nutrients and helps the young vines establish without crowding. Irrigation planning, while essential for vineyard performance, focuses on supplying water and scheduling irrigation—it's about water management, not the soil’s physical preparation. So the item not listed as part of soil preparation is irrigation planning.