This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 耟 is uncertain. It combines 耒 (plow) with 巨, but the original role of 巨 is unclear.
The left side 耒 suggests a farming tool, and the right side 巨 suggests something large. Picture a large plow, but remember its meaning is uncertain.
For キョ, imagine a giant plow making a loud 'kyo' sound as it cuts through the earth: kyo -> キョ.