id	keyword
afs-7448	protein
afs-7448	grain
afs-7448	weight
afs-7448	content
afs-7448	yield
afs-7448	ha-1
afs-7448	response
afs-7448	fertilizer
afs-7448	wheat
afs-7448	uptake
afs-7448	rates
afs-7448	test
afs-7448	barley