Abstract
The relatively high contributions of biological dinitrogen fixation (BNF) to non-legume crops, especially in the tropics, such as in Brazil, can now be much better explained by the discovery of the endophytic colonization of roots, stems and leaves of cereals, forage grasses, oil palms and especially sugar cane, that are colonized by various new diazotrophic bacteria described recently. Unconsciously Brazilian sugar cane varieties have been selected with N levels (60 kg N ha−1) much lower than the incorporation level normally present in this plant (around 250 kg N ha−1 per 18 months). The same happened with most other cereals and forage grasses, even though they do not obtain sufficient N from BNF for maximal yields.
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Dobereiner, J., Baldani, V.L.D. (1998). Biological nitrogen fixation by endophytic diazotrophs in non-leguminous crops in the tropics. In: Malik, K.A., Mirza, M.S., Ladha, J.K. (eds) Nitrogen Fixation with Non-Legumes. Developments in Plant and Soil Sciences, vol 79. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5232-7_1
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DOI: https://doi.org/10.1007/978-94-011-5232-7_1
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