top-dressing

A farmer spreads top-dressing across his field.

Definition

1. Noun:
   • Fertilizer spread on soil surface: "top-dressing" refers to a layer of fertilizer or manure applied to the surface of the soil, rather than being mixed into it, to improve plant growth.
   • The act of applying such material: It also denotes the process of spreading this material on the ground, typically in farming or gardening.
   • A layer of material on a road: In road construction, "top-dressing" is a layer of gravel, stone, or other material spread on the surface of a road to improve or maintain it.

Usage Examples

• Noun (fertilizer):
  • The farmer applied a top-dressing of nitrogen to the wheat field in spring. (A surface layer of nitrogen-rich fertilizer was spread to boost growth.)
• Noun (act of applying):
  • Top-dressing should be done after the plants have established roots. (The process of spreading fertilizer on the soil surface.)
• Noun (road layer):
  • The road crew performed a top-dressing of crushed stone to fill potholes. (A layer of stone was spread on the road surface.)

Advanced Usage

• "to apply a top-dressing": to spread material on the surface.
  • Gardeners often apply a top-dressing of compost to flower beds in autumn. (They spread compost on the soil surface to enrich it.)
• "top-dressing with lime": to spread lime on the soil to adjust pH.
  • The lawn needed a top-dressing with lime to reduce acidity. (Lime was spread on the grass surface.)

Variants and Related Words

• Top-dress (verb): to apply a top-dressing to something.
  • She will top-dress the lawn with a thin layer of sand. (She will spread sand on the grass surface.)
• Top-dressed (adjective): having had a top-dressing applied.
  • The top-dressed field showed improved crop yields. (The field that had received surface fertilizer.)

Synonyms

• Surface dressing: a layer of material applied to the top of something.
  • The road needed a surface dressing of gravel. (A top layer of gravel.)
• Mulch: a protective layer of material spread on soil, though mulch is often organic and used for moisture retention, not strictly fertilizer.
  • He spread a mulch of straw over the vegetable patch. (A top layer of organic material.)

Related Idioms

• (No common idioms directly use "top-dressing," as it is a technical term in agriculture and road maintenance.)