機器
agricultural
agriculture
chemical
corn
crop
cultivated
ecology
environment
environmental
equipment
farm
farmer
farming
fertilize
fertilizer
field
food
fresh
green
growth
herbicide
herbicides
industry
insecticide
land
landscape
machinery
meadow
natural
nature
organic
outdoors
pesticide
pesticides
plant
rural
scene
season
sky
spray
sprayer
spraying
spring
summer
technology
toxic
tractor
water
wheat