The book entitled "Nitrogen and phosphate fertilization in cowpea cultivation" provides students, teachers, researchers and farmers with relevant information on the use and proper management of fertilization in cowpea cultivation in the semi-arid conditions of the state of Paraíba. The text also includes a literature review of work carried out on cowpea cultivation in other microregions of the country, as well as data on development, nutrition, foliar analysis and the economics of fertilization.