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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Fertile, in a way:

MANURES: Fertilizes, in a way
ARABLE: Fertile, in a way
LIMED: Fertilized, in a way
POLLINATE: Fertilize, in a way
LOAMIEST: Most fertile, in a way