id	keyword
american_scientific_journal-1981	soil
american_scientific_journal-1981	flood
american_scientific_journal-1981	ha-1
american_scientific_journal-1981	recession
american_scientific_journal-1981	sorghum
american_scientific_journal-1981	journal
american_scientific_journal-1981	research
american_scientific_journal-1981	mali
american_scientific_journal-1981	sciences
american_scientific_journal-1981	crop
american_scientific_journal-1981	dougoubara
american_scientific_journal-1981	gory
american_scientific_journal-1981	yield
american_scientific_journal-1981	matter
american_scientific_journal-1981	manure
american_scientific_journal-1981	farmers
american_scientific_journal-1981	american
american_scientific_journal-1981	agriculture
american_scientific_journal-1981	fertilizer
american_scientific_journal-1981	farming
american_scientific_journal-1981	scientific