Observations on the use ofSesbania rostrata as green manure in paddy fields

Dreyfus, B; Rinaudo, Gérard; Dommergues, Yvon

doi:10.1007/bf01742577

Cited by 28 publications

(13 citation statements)

References 8 publications

(4 reference statements)

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“…The grain yield with S. sesban (396 g m -2, Table 3) was about the same as was reported from field experiments under similar management practices (290 and 450 g m -2 for two seasons) with S. rostrata in Senegal (Dreyfus et al, 1985). The same yield increase as in our study (200 g m-2 over the control, Table 3), was also reported from field experiments in the Philippines, when mungbean (Vigna radiata) or cowpea (V. unguiculata) was used as green manure with a nitrogen input of 8.3 gm -2 (Morris et al, 1986).…”

Section: Discussionsupporting

confidence: 74%

Nitrogen mineralization ofSesbania sesban used as green manure for lowland rice in Sri Lanka

Palm

Weerakoon²,

Silva

et al. 1988

Plant Soil

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Sesbania sesban was evaluated as green manure crop for lowland rice in the Dry Zone of Sri Lanka. The legume was grown during a fallow period before lowland rice (Oryza sativa) and ploughed under just before transplanting. Weight loss and nitrogen content in litterbags containing leaves, stems and roots of the legume were monitored. Comparisons were made between rice yields from 20m 2 plots after green manuring in combination with different nitrogen fertilizer levels (0, 2.4, 4.8 and 7.2gm z) and nitrogen fertilizer (9.6 g m 2) alone. Above-ground biomass of S. sesban was 440 g m 2 (dry wt) when ploughed under after 84 days growth. N-content in leaves, stems and roots was 3.760,0.41% and 0.73%, respectively. This gave a N-input from S. sesban of 9.2 g m 2 (8.3 g from above-ground parts and 0.9 g from roots). The corresponding K and P inputs were 7.3 and 0.6gm 2 respectively. The nitrogen rich leaves, which contained 88% of the nitrogen in the above-ground parts, decomposed and released its nitrogen much more rapidly than the stems and roots. After only four days the leaves had released 5.3 g N m -2 and after 14 days they had released 6.4 g N m 2. The highest rice yield (505 g m 2) was obtained using S. sesban and 4.8 g m 2 of N-fertilizer. The yields with only N-fertilizer or only S. sesban were 442 g m -2 and 396 g m -2, respectively. Due to the rapid decomposition of the nitrogen rich leaves, S. sesban did not behave as a slow release fertilizer. Thus, it is not necessary to apply nitrogen fertilizers as a basal dose.

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Section: Discussionsupporting

confidence: 74%

Nitrogen mineralization ofSesbania sesban used as green manure for lowland rice in Sri Lanka

Palm

Weerakoon²,

Silva

et al. 1988

Plant Soil

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“…On the other hand, stem nodules were formed spontaneously under field conditions. Our observation supports the suggestion of Dreyfus et al (1985) that dust, rain splash, and insect are significant for nodulation along the stem. The amounts of nitrogen fixed by the rootinoculated plants and those by the stem-plus root-inoculated ones were not different, suggesting that the root nodules contribute significantly to nitrogen fixation and that the stem nodules are less effective than the root nodules.…”

supporting

confidence: 92%

Nitrogen fixation ofSesbania rostrata: Contribution of stem nodules to nitrogen acquisition

Saraswati

Matoh

Sekiya

1992

Soil Science and Plant Nutrition

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“…Nitrogen fixation by S. rostrata is very efficient and S. rostrata has a real potential in tropical agriculture as green manure [14,39]. Several bacterial strains have been isolated from stem and root nodules, which have been taxonomically classified in two different genera: Azorhizobium caulinodans and Rhizobium sp.…”

Section: Introductionmentioning

confidence: 99%

Plant gene expression during effective and ineffective nodule development of the tropical stem-nodulated legume Sesbania rostrata

Lajudie

Huguet

1988

Plant Mol Biol

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The expression of plant genes during symbiosis of Sesbania rostrata with Rhizobium sp. and Azorhizobium caulinodans was studied by comparing two-dimensional PAGE patterns of in vitro translation products of poly(A)(+) RNA from uninfected roots and stems with that of root and stem nodules. Both types of nodules are essentially similar, particularly when stem nodules are formed in the dark. We detected the specific expression of at least 16 genes in stem and root nodules and observed the stimulated expression of about 10 other genes in both nodules. Six of the nodule-specific translation products (apparent molecular masses around 16 kDa) cross-react with an antiserum raised against leghemoglobin purified from Sesbania rostrata stem nodules. During stem nodule development, most of the nodule-stimulated genes are expressed concomitantly with leghemoglobin at day 12 after inoculation. However, some genes are already stimulated at days 6-7, some others later in development (day 18), and some are transiently activated. Patterns of root nodules induced by either Azorhizobium caulinodans strain ORS571, capable of effective root and stem nodulation, or Rhizobium sp. strain ORS51, capable of effective root nodulation only, are very similar except for a specific 37.5 kDa polypeptide. Several types of ineffective stem and root nodules were studied; in every case the amount of leghemoglobin components appeared reduced together with most of the nodule-stimulated polypeptides.

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Observations on the use ofSesbania rostrata as green manure in paddy fields

Cited by 28 publications

References 8 publications

Nitrogen mineralization ofSesbania sesban used as green manure for lowland rice in Sri Lanka

Nitrogen mineralization ofSesbania sesban used as green manure for lowland rice in Sri Lanka

Nitrogen fixation ofSesbania rostrata: Contribution of stem nodules to nitrogen acquisition

Plant gene expression during effective and ineffective nodule development of the tropical stem-nodulated legume Sesbania rostrata

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