機器
agriculture
background
brown
business
country
crops
cultivated
dirt
dirty
earth
ecology
environment
farm
farming
fertile
fertilizer
field
fresh
furrows
ground
grow
harvest
humus
land
landscape
loosen
mineral
mud
nature
organic
plain
plants
plough
plow
puddle
rain
ranch
rural
season
soil
striped
sustainable
swamp
tillage
tracks
tractor
water
wet