ag
agricultural
agriculture
background
cob
corn
corncob
countryside
cover
crop
cultivate
cultivation
disc
disk
ear
empty
fall
farm
farming
farmland
fertile
field
food
forage
ground
harvest
husk
leftover
maize
material
nodal
notill
outdoor
plant
plow
production
residue
root
roughage
row
rural
rut
soil
spring
stalk
stover
till
tillage
tilth
winter