id	keyword
agsci-1224	lettuce
agsci-1224	soil
agsci-1224	moisture
agsci-1224	content
agsci-1224	soil moisture
agsci-1224	treatment
agsci-1224	water
agsci-1224	moisture content
agsci-1224	decrease
agsci-1224	drought
agsci-1224	stress