[[def: soil, soils, Soil]]

~ Soil is the upper layer of earth in which plants grow. It consists of a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Healthy soil is essential for gardening and agriculture.

~ Refs examples: [[ref: Compost]], [[ref: Mulch]], [[ref: Fertilizer]].

~ Xref examples from external gardening glossaries: 
~ - From ExtRef1 (greenhouse focus): [[xref: ExtRef1, greenhouse]], [[xref: ExtRef1, irrigation]]
~ - From ExtRef2 (lifecycle focus): [[xref: ExtRef2, dormancy]], [[xref: ExtRef2, propagation]]

~ Note: The term "soil" exists in ExtRef1 and ExtRef2 with different definitions focused on their respective themes.

~ Soil quality affects water retention, nutrient availability, and plant health. Amending soil with compost or mulch can improve its structure and fertility. Fertilizer may be added to supplement nutrients as needed.