The act or process of heaping or drawing earth around plants.(noun)
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Use "hilling" in a sentence
"The corn hills I planted well apart, because later, in hilling up, I would need room to draw earth from all directions over the roots to protect them from the sun, that they might not dry out."
"Many birds, especially males, in the breeding season, are taken by decoying them into nets or snares by tame or wild birds of the opposite sex; in fact, advantage was wont to be taken of the pugnacity or devotion of the Ruffes when "hilling," by previously setting springes or nets on their battle-ground, into which said snares they danced, when courting or fighting (see Daniel, vol. U, p. 212)."
"The operation of "hilling" consists in drawing up the soil about the stems of growing plants, usually at the time of second or third hoeing."