How to say "fertilizer" in Japanese

Choosing the right word
  • 肥料ひりょうJLPT N1approx.Common
    nounThe general word for fertilizer, covering manufactured chemical products as well as manure and compost; in most contexts, from farming and gardening to buying it at a store, this is the word you want.
  • 肥やしこやしCommon
    nounCovers fertilizer of the manure kind: animal dung, night soil and similar waste spread on soil to enrich it. When 'fertilizer' means such natural material rather than a manufactured product, this fits.
  • 肥こえCommon
    nounA shorter equivalent of 肥やし, covering the same manure-centred ground: dung, night soil and other natural enrichers. For fertilizer as a general notion, 肥料 is the safer pick.

Choose 肥料 for fertilizer in general, whether chemical or natural; 「肥やし」 and 肥 both center on manure, dung and similar natural waste spread on soil to enrich it, with 肥 the shorter variant.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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