In general, the aeration and churning of a compost pile help the bacteria do their job, but here are the pros and cons of ground composting by burying ( I do it with leaves every year. )
PROS
Ease of Set-Up - Just dig a hole and bury compostables without needing bins or piles.
Direct Soil Enrichment - Materials decompose and directly enrich the soil, improving its fertility.
Pest Reduction - Burying compostables reduces the risk of attracting pests.
Low Maintenance - Once items are buried, there's minimal upkeep compared to traditional composting methods.
CONS
Effort of Digging - Digging can be labor-intensive, especially in tough soils.
Slower Decomposition - Items might break down slower when buried compared to well-aerated piles.
Root Disturbance - Digging can disturb the roots of nearby plants.
Soil Disruption - Continuous digging might affect the soil structure and microbial balance.