id	keyword
ahs-17221	root
ahs-17221	restriction
ahs-17221	root restriction
ahs-17221	tomato
ahs-17221	nutrient
ahs-17221	concentration
ahs-17221	water
ahs-17221	solution
ahs-17221	plant
ahs-17221	growth
ahs-17221	yield
ahs-17221	et al
ahs-17221	nsc
ahs-17221	fruit
ahs-17221	standard