agriculture
asia
asian
buffalo
china
control
county
cows
culture
curve
earth
ecology
environment
farm
field
food
green
ground
grows
harrow
horticulture
indochina
japan
land
landscape
leaf
light
local
malaysia
management
mountain
nature
outside
patchwork
plant
plantation
regulation
rice
rough
saigon
soil
system
terrace
thai
travel
valley
water
yen bai
yenbai