英文關鍵字
agricultural
agriculture
arable
autumn
chemical
crop
cultivate
cultivated
cultivation
dust
earth
equipment
farm
farmer
farming
farmland
fertile
fertilization
fertilize
fertilizer
field
grain
green
ground
harrow
heavy
industry
insecticide
land
machine
machinery
nature
pesticide
plant
prepare
red
season
seed
soil
sow
sowing
spring
summer
time
tractor
treatment
vehicle
work
worker