id	keyword
ahs-14997	tunnel
ahs-14997	kale
ahs-14997	soil
ahs-14997	ground
ahs-14997	urban
ahs-14997	mulch
ahs-14997	yield
ahs-14997	plastic
ahs-14997	cover
ahs-14997	treatments
ahs-14997	straw
ahs-14997	plots
ahs-14997	sites
ahs-14997	production
ahs-14997	black
ahs-14997	garden
ahs-14997	agriculture