Search Results - "Urquiaga, S"

Biological nitrogen fixation in soybean in Argentina: relationships with crop, soil, and meteorological factors by Collino, D. J., Salvagiotti, F., Perticari, A., Piccinetti, C., Ovando, G., Urquiaga, S., Racca, R. W.

“…Aims This study aims to (i) asses the contribution of biological N fixation (%Ndfa) in the soybean production area of Argentina, (ii) build a model for…”
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Forage peanut legume as a strategy for improving beef production without increasing livestock greenhouse gas emissions by Homem, B.G.C., Borges, L.P.C., de Lima, I.B.G., Guimarães, B.C., Spasiani, P.P., Ferreira, I.M., Meo-Filho, P., Berndt, A., Alves, B.J.R., Urquiaga, S., Boddey, R.M., Casagrande, D.R.

“…•Palisade grass-forage peanut mixed pasture is an important driver of sustainability.•N input via fertiliser or biological fixation increases the liveweight…”
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Changes in soil C and N stocks and nutrient dynamics 13 years after recovery of degraded land using leguminous nitrogen-fixing trees by Macedo, M.O., Resende, A.S., Garcia, P.C., Boddey, R.M., Jantalia, C.P., Urquiaga, S., Campello, E.F.C., Franco, A.A.

“…In tropical forest areas with highly weathered soils, organic matter plays an important role in soil functioning and forest sustainability. When forests are…”
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contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems by Peoples, M.B, Brockwell, J, Herridge, D.F, Rochester, I.J, Alves, B.J.R, Urquiaga, S, Boddey, R.M, Dakora, F.D, Bhattarai, S, Maskey, S.L, Sampet, C, Rerkasem, B, Khan, D.F, Hauggaard-Nielsen, H, Jensen, E.S

“…Data collated from around the world indicate that, for every tonne of shoot dry matter produced by crop legumes, the symbiotic relationship with rhizobia is…”
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Impact of tillage and crop rotation on light fraction and intra-aggregate soil organic matter in two Oxisols by Zotarelli, L., Alves, B.J.R., Urquiaga, S., Boddey, R.M., Six, J.

“…It is well known that no-tillage (NT) practices can promote greater stocks of soil organic matter (SOM) in the soil surface layer compared to conventional…”
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The effect of inoculating endophytic N 2 -fixing bacteria on micropropagated sugarcane plants by Oliveira, A.L.M., Urquiaga, S., Döbereiner, J., Baldani, J.I.

“…The aim of this work was to evaluate the effect of the inoculation of endophytic N2-fixing bacteria on the development of micropropagated sugarcane plants. The…”
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The effect of inoculating endophytic N2-fixing bacteria on micropropagated sugarcane plants by OLIVEIRA, A. L. M, URQUIAGA, S, DÖBEREINER, J, BALDANI, J. I

“…The aim of this work was to evaluate the effect of the inoculation of endophytic N^sub 2^-fixing bacteria on the development of micropropagated sugarcane…”
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The role of arbuscular mycorrhiza in legume symbiotic performance by Chalk, P.M., Souza, R. de F., Urquiaga, S., Alves, B.J.R., Boddey, R.M.

“…Legumes may respond to non-rhizobial inoculants such as arbuscular mycorrhizal (AM) fungi either through an effect on plant growth or, in addition, through an…”
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Nitrogen cycling in Brachiaria pastures: the key to understanding the process of pasture decline by Boddey, R.M., Macedo, R., Tarré, R.M., Ferreira, E., de Oliveira, O.C., de P. Rezende, C., Cantarutti, R.B., Pereira, J.M., Alves, B.J.R., Urquiaga, S.

“…In the tropical regions of Brazil there are at least 80 million ha (Mha) of pastures planted to grasses introduced from Africa, principally Brachiaria spp. It…”
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Isotopic fractionation during N2 fixation by four tropical legumes by Okito, A, Alves, B.R.J, Urquiaga, S, Boddey, R.M

“…To quantify the contribution of biological nitrogen fixation (BNF) to legume crops using the 15N natural abundance technique, it is necessary to determine the…”
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Impact of tillage and crop rotation on aggregate-associated carbon in two Oxisols by Zotarelli, L, Alves, B.J.R, Urquiaga, S, Torres, E, Santos, H.P. dos, Paustian, K, Boddey, R.M, Six, J

“…In temperate regions, the adoption of no-tillage (NT) often stimulates the sequestration of soil C and N and improves soil structural stability. The aim of…”
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Chemical and biological indicators of decline/degradation of Brachiaria pastures in the Brazilian Cerrado by de Oliveira, O.C., de Oliveira, I.P., Alves, B.J.R., Urquiaga, S., Boddey, R.M.

“…Some years after their installation, areas of pasture planted to Brachiaria and other African grasses in the Brazilian savanna (“Cerrado”) region show a…”
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Productivity of Brachiaria humidicola pastures in the Atlantic forest region of Brazil as affected by stocking rate and the presence of a forage legume by Pereira, J. M, Tarré, R. M, Macedo, R, de Paula Rezende, C, Alves, B. J. R, Urquiaga, S, Boddey, R. M

“…Excessive intensification of dairy and beef cattle production systems in the industrialised countries has led to serious problems of pollution of water…”
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Biological nitrogen fixation associated with sugar cane and rice: contributions and prospects for improvement by Boddey, R.M. (Centro Nacional de Pesquisa de Agrobiologia EMBRAPA, Rio de Janeiro (Brazil)), Oliveira, O.C. de, Urquiaga, S, Reis, V.M, Olivares, F.L. de, Baldani, V.L.D, Doebereiner, J

“…¹⁵N isotope and N balance studies performed over the last few years have shown that several Brazilian varieties of sugarcane are capable of obtaining over 60%…”
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The effect of the presence of a forage legume on nitrogen and carbon levels in soils under Brachiaria pastures in the Atlantic forest region of the South of Bahia, Brazil by Tarré, R., Macedo, R., Cantarutti, R.B., de P. Rezende, C., Pereira, J.M., Ferreira, E., Alves, B.J.R., Urquiaga, S., Boddey, R.M.

“…The impact of forest clearance, and its replacement by Brachiaria pastures, on soil carbon reserves has been studied at many sites in the Brazilian Amazonia,…”
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Carbon turnover (δ 13C) and nitrogen mineralization potential of particulate light soil organic matter after rainforest clearing by Cadisch, G., Imhof, H., Urquiaga, S., Boddey, R.M., Giller, K.E.

“…Soil samples from under a rainforest, a papaya plantation, a pure Brachiaria humidicola pasture and a B. humidicola/Desmodium ovalifolium sward from the humid…”
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Contribution of nitrogen fixation to sugar cane: nitrogen-15 and nitrogen-balance estimates by Urquiaga, Segundo, Cruz, Kátia H.S., Boddey, Robert M.

“…Continuous sugarcane (Saccharum spp.) culture in Brazil, with low N inputs and almost total removal of plant biomass at each harvest, has not depleted soil N…”
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Interspecies competition and N transfer in a tropical grass-legume mixture by TRANNIN, W. S, URQUIAGA, S, GUERRA, G, IBIJBIJEN, J, CADISCH, G

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Litter deposition and disappearance in Brachiaria pastures in the Atlantic forest region of the South of Bahia, Brazil by Rezende, C. de (Estacao de Zootecnia do Extremo Sul da Bahia, Itabela, BA (Brazil).), Cantarutti, R.B, Braga, J.M, Gomide, J.A, Pereira, J.M, Ferreira, E, Tarre, R, Macedo, R, Alves, B.J.R, Urquiaga, S, Cadisch, G, Giller, K.E, Boddey, R.M

“…Over the last 25 years more than 70 million ha of the native vegetation in Brazil have been replaced by pastures for beef production planted to grasses of the…”
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Contribution and transfer of nitrogen from cover crops to raspberry plant using isotopic techniques with 15N by Ovalle, C, Gonzalez, M.I, Hirzel, J, Urquiaga, S, Pino, I, Pozo, A. del

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