id	keyword
brj-23015	corn
brj-23015	soil
brj-23015	corn stalks
brj-23015	et al
brj-23015	cue
brj-23015	doi
brj-23015	urea
brj-23015	carbon
brj-23015	returning
brj-23015	application
brj-23015	growth
brj-23015	yield
brj-23015	zhang