id	keyword
agsci-502	water
agsci-502	irrigation
agsci-502	irrigation water
agsci-502	salinity
agsci-502	rice
agsci-502	saline
agsci-502	treatments
agsci-502	soil
agsci-502	drainage
agsci-502	yield
agsci-502	sl4
agsci-502	m−1
agsci-502	ponding
agsci-502	application
agsci-502	crop