Composting has a positive impact on soil structure and texture. Let me explain how:

1. Soil structure:
o Soil structure refers to the arrangement of soil particles and how they clump together.
o This is determined by how individual elements (such as clay, silt and sand) aggregate.
o These aggregates form pores between particles, essential for the various functions of the soil.
2. Aggregation process:
o Aggregation is the process by which soil particles bind together to form aggregates.
o Binders act like glue, causing small particles to clump together into larger aggregates.
o Microorganisms play an important role in this process.
o Mycorrhizal fungi produce a substance called Glomalin, which acts as both a binding and stabilizing agent for aggregates.
3. How compost helps with soil structure:
o Compost provides organic matter that feeds the microorganisms responsible for aggregation.
o These organisms create stable aggregates, improving aeration, drainage and resistance to soil compaction.
o Compost acts like a sponge, helping sandy soils retain water and nutrients.
o For heavy clay soils, it loosens compacted areas, allowing for better root growth and water movement.

In summary, compost improves soil structure by promoting aggregation and creating stable aggregates, beneficial for overall soil health and plant growth.

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