Question

describe the structure and composition of fertile soil

Answer 1

Soils are composed of mineral matter and organic matter and contain pore spaces filled with water or air and soluble nutrients. Organic matter serves as a binder for mineral particles, contributing to good soil structure and tilth, which refers to the behavior of soil under cultivation.

Soil structure refers to the arrangement of soil separates into units called soil aggregates. ... Aggregates are separated by planes of weakness and are dominated by clay particles. Silt and fine sand particles may also be part of an aggregate.

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