id	keyword
brj-22930	biochar
brj-22930	tree
brj-22930	pyrolysis
brj-22930	pruning
brj-22930	carbon
brj-22930	fruit
brj-22930	et al
brj-22930	doi
brj-22930	waste
brj-22930	content
brj-22930	article
brj-22930	temperature
brj-22930	fruit tree
brj-22930	wood
brj-22930	species