agricultural

agriculture

autumn

blue

canal

clay

construction

countryside

crop

cultivation

deep

digging

dirt

ditch

ditcher

double

drainage

earth

equipment

excavation

fall

farmland

field

flood

ground

harrow

hills

industrial

irrigation

land

machinery

mechanical

modern

natural

planting

ploughing

rural

sand

season

soil

spreading

spring

sunny

tire

tractor

trench

trencher

vehicle

water

wheel