id	keyword
brj-23725	soil
brj-23725	azotobacter
brj-23725	rdf
brj-23725	nitrogen
brj-23725	et al
brj-23725	doi
brj-23725	article
brj-23725	urea
brj-23725	nano
brj-23725	nutrient
brj-23725	plant
brj-23725	leaf
brj-23725	fertility