Simple past tense and past participle of manure.(verb)
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Use "manured" in a sentence
"-- The ground having been first well trenched and manured, that is, from sixty to seventy maunds of manure given to the acre, the seeds are, when ripe, to be removed from the capsules, and immediately sown to the depth of one inch, and very close, in drills 8 to 10 inches apart from each other."
"The hot air was redolent with the pungent perfumes of low tide coming from the piles of oysters, an indescribably fundamental smell—luscious, fresh—in rough comparison, thought Jon, not so different from other strong and lovely earth smells, like cut grass, or freshly manured farm fields."
"He showed us another grown the traditional way, manured by cattle and burned off by fire."