Sánchez, F Biological nitrogen fixation and future challenges of agriculture. The endophytic connection. [electronic resource] - Advances in experimental medicine and biology 1999 - 107-15 p. digital Publication Type: Journal Article; Review ISSN: 0065-2598 Standard No.: 10.1007/978-1-4615-4729-7_9 doi Subjects--Topical Terms: Agriculture--methodsNitrogen FixationPlants--parasitology