00816naa a2200265 a 450000100080000000500110000800800410001902400390006010000210009924501260012026000090024665000130025565000190026865000210028765000180030865000130032665000220033965000160036165300170037765300140039470000160040870000200042470000170044477300890046120915942018-05-17 2017 bl uuuu u00u1 u #d7 a10.1080/00103624.2017.13737922DOI1 aMORAES, L. A. C. aNitrogen sources and rates effect on yield, nutritional status, and yield components of sunflower.h[electronic resource] c2017 aNitrogen aPhotosynthesis aYield components aFotossĂ­ntese aGirassol aHelianthus Annuus aNitrogĂȘnio aAchene yield aSunflower1 aMOREIRA, A.1 aSOUZA, L. G. M.1 aCEREZINI, P. tCommunications in soil science and plant analysisgv. 48, n. 14, p. 1627-1635, 2017.