Advances and perspectives of the research on the nitrogen biologic fixation in non-leguminosae plants. [Portuguese

One of the most important factors affecting sustainability of agricultural systems is the supply of nitrogen through biological N2 fixation in rotations including forage and grain legumes. Recent findings indicate highly promising possibilities of complementing legumes with productive forage grasses...

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Bibliographic Details
Published inRevista INIA de Investigaciones Agronomicas Vol. 1
Main Author Doebereiner J
Format Journal Article
LanguagePortuguese
Published 1992
Subjects
bacteria fijadora del nitrogeno
bacterie fixatrice de l' azote
brasil
brazil
bresil
fijacion del nitrogeno
fixation de l' azote
gramineas
graminee
grasses
nitrogen fixation
nitrogen fixing bacteria
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Summary:One of the most important factors affecting sustainability of agricultural systems is the supply of nitrogen through biological N2 fixation in rotations including forage and grain legumes. Recent findings indicate highly promising possibilities of complementing legumes with productive forage grasses, ie. certain Bracchiaria spp., Panicum maximum and Pennisetum purpureum genotypes that are capable of obtaining a large portion of their N needs form biological N2 fixation in association with bacteria. The inclusion of sugar cane in rotation systems for regions with good conditions for this crop, could become an attractive production alternative. Several new bacteria that form endophytic associations with this crop were isolated. Nitrogen balance and 15N experiments demonstrated that over 100 kg N/ha/yr could be obtained in association with certain sugar cane genotypes and more than 200 kg N/ha/yr with a Saccharum spontaneum variety used as forage in the Philippines.
Bibliography:P
P34
ISSN:0797-5481