Consulta: (autoria:"CHALK, P. M.")
Registros recuperados: 56
Data/hora: 23/09/2024 16:37:32

CHALK, P. M. The contribution of associative and symbiotic nitrogen fixation to the nitrogen nutrition of non-legumes. Plant Soil, v.132, n.1, p.29-39, 1991.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M. Nitrogen cycling in pastures under grazing. [s.l.: s.n., s.d.] 9p. Seminario apresentado em 1979 no Centro Nacional de Pesquisa de Gado de Corte.
Biblioteca(s): Embrapa Cerrados.

CHALK, P. M. Nitrogen cycling in pastures under grazing. In: EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS). Coletanea de seminarios tecnicos-1979. Campo Grande, 1980. p.86-94. CNPGC.
Biblioteca(s): Embrapa Gado de Corte.

CHALK, P. M. From production to consumption: tracing C, N, and S dynamics in brazilian agroecosystems using stable isotopes. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 9, p. 1039-1050, set. 2016. Título em português: Da produção ao consumo: traçando a dinâmica de C, N e S nos agroecossistemas brasileiros com uso de isótopos estáveis.
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149973/1/From-production-to-consumption.pdf
Biblioteca(s): Embrapa Unidades Centrais.

CHALK, P. M. Estimation of N2 fixation by isotope dilution: An appraisal of techniques involving 15N enrichment and their application. Soil Biol. Biochem., v.17, n.4, p.389-410, 1985.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M. Dynamics of biologically fixed N in legume-cereal rotations: a review. Australian Journal of Agricultural Research, v. 49, p. 303-316, 1998.
Biblioteca(s): Embrapa Trigo.

INACIO, C. T.; CHALK, P. M. Principles and limitations of stable isotopes in differentiating organic and conventional foodstuffs: 2. Animal products. Critical Reviews in Food Science and Nutrition, v. 57, n. 1, p. 181-196, 2017.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; INACIO, C. T.; URQUIAGA, S.; CHEN, D. 13C isotopic fractionation during biodegradation of agricultural wastes. Isotopes in Environmental and Health Studies, v. 51, n. 2, p. 201-213, 2015.
Biblioteca(s): Embrapa Solos.

BODDEY, R. M.; CHALK, P. M.; VICTORIA, R.; MATSUI, E. The 15N isotope dilution technique applied to the estimation of biological nitrogen fixation associated with Paspalum notatum cv. Batatais in the field. Soil Biology and Biochemistry, Oxford, v. 15, n. 1, p. 25-32, 1983.
Biblioteca(s): Embrapa Agrobiologia.

HOPMANS, P.; DOUGLAS, L. A.; CHALK, P. M. Effects of soil salinity and mineral nitrogen on the acetylene reduction activity of Trifolium subterraneum L. Aust. J. Agric. Res., v. 35, n. 1, p. 9-15, 1984.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; INACIO, C. T.; MAGALHÃES, A. M. T. From fertilizer to food: tracing nitrogen dynamics in conventional and organic farming systems using 15N natural abundance. In: INTERNATIONAL SYMPOSIUM ON MANAGING SOILS FOR FOOD SECURITY AND CLIMATE CHANGE ADAPTATION AND MITIGATION, 2012, Vienna. Proceedings... Rome: FAO, 2014. p. 339-348.
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113606/1/Inacio-339-348.pdf
Biblioteca(s): Embrapa Solos.

HOPMANS, P.; DOUGLAS, L. A.; CHALK, P. M. Nitrogen fixation associated with Acacia dealbata Link. seedlings as estimated by the acetylene reduction assay. Aust. J. Bot., v.31, n.4, p.331-339, 1983.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; INACIO, C. de T.; CHEN, D. An overview of contemporary advances in the usage of 15N natural abundance (delta N-15) as a tracer of agro-ecosystem N cycle processes that impact the environment. Agriculture, Ecosystems & Environment, v. 283, 106570, Nov. 2019.
Biblioteca(s): Embrapa Solos.

INACIO, C. T.; CHALK, P. M.; MAGALHÃES, A. M. T. Principles and limitations of stable isotopes in differentiating organic and conventional foodstuffs: 1. Plant products. Critical Reviews in Food Science and Nutrition, v. 55, n. 9, p. 1206-1218, 2015.
Biblioteca(s): Embrapa Solos.

HOPMANS, P.; DOUGLAS, L. A.; CHALK, P. M. Estimation of nitrogen fixation by Trifolium subterraneum L. and Medicago truncatula Gaertn. grown in pots using a non-destructive acetylene reduction assay. Soil Biol. Biochem., v.14, n.5, p.495-500, 1982.
Biblioteca(s): Embrapa Agrobiologia.

CHEN, D.; CHALK, P. M.; FRENEY, J. R. External-source contamination during extraction-distillation in isotope-ratio analysis of soil inorganic nitrogen. Anal. Chim. Acta, v.245, p.49-55, 1991.
Biblioteca(s): Embrapa Agrobiologia.

HOPMANS, P.; CHALK, P. M.; DOUGLAS, L. A. Determination of nitogen fixation by legumes grown in pots by an 15N method and acetylene reduction. In: Ninth International Plant Nutrition Colloquim, Warwick University, Coventry, U.K., 22-27 August 1982., v., p.-, 1982.
Biblioteca(s): Embrapa Agrobiologia.

CHEN, D.; CHALK, P. M.; FRENEY, J. R. Release of dinitrogen from nitrite and sulphamic acid for isotope ratio analysis of soil extracts containing nitrogen-15 labelled nitrite and nitrate. Analyst, v.115, p.365-370, 1990.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; BALIEIRO, F. de C.; CHEN, D. Quantitative estimation of carbon dynamics in terrestrial ecosystems using natural variations in the delta C-13 abundance of soils and biota. Advances in Agronomy, v. 167, p. 63-104, 2021.
Biblioteca(s): Embrapa Solos.

HOPMANS, P.; CHALK, P. M.; DOUGLAS, L. A. Symbiotic N2 fixation by legumes growing in pots. I. Fixation of 15N-labelled N2 and C2H2 reduction by Trifolium subterraneum L. Plant Soil, v.74, n.3, p.325-332, 1983.
Biblioteca(s): Embrapa Agrobiologia.

HOPMANS, P.; CHALK, P. M.; DOUGLAS, L. A. Symbiotic N2 fixation by legumes growing in pots. II. Uptake of 15N-labelled NO3, C2H2 reduction and H2 evolution by Trifolium subterraneum L., Medicago truncatula Gaertn. and Acacia dealbata Link. Plant Soil, v.74, n.3, p.333-342, 1983.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; DOUGLAS, L. A.; BUCHANAN, S. A. Use of 15N enrichment of soil mineralizable N as a reference for isotope dilution measurements of biologically fixed nitrogen. Can. J. Microbiol., v. 29, n. 8, p. 1046-1052, 1983.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; INACIO, C. de T.; CHEN, D. Tracing the dynamics of animal excreta N in the soil-plant-atmosphere continuum using 15N enrichment. Advances in Agronomy, v. 160, n. 1, p. 187-247, 2020.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; INACIO, C. de T.; CHEN, D. Tracing S dynamics in agro-ecosystems using 34S. Soil Biology & Biochemistry, v. 114, p. 295-308, Nov. 2017.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; INACIO, C. de T.; URQUIAGA, S.; CHEN, D. 13C isotopic fractionation during biodegradation of agricultural wastes. Isotopes in Environmental and Health Studies, 13 Mar. 2015.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; SMITH, C. J.; HAMILTON, S. D.; HOPMANS, P. Characterization of the N benefit of a grain legume (Lupinus angustifolius L.) to a cereal (Hordeum vulgare L.) by an in situ 15N isotope dilution technique. Biol. Fertil. Soils, v. 15, n. 1, p. 39-44, 1993.
Biblioteca(s): Embrapa Agrobiologia.

PEOPLES, M. B.; CHALK, P. M.; UNKOVICH, M. J.; BODDEY, R. M. Can diferences in 15 N abundance be used to quantify the transfer of nitrogen from legumes to neighbouring non-legume plant species? Soil Biology & Biochemistry, , 87, p. 97-109, 2015.
Biblioteca(s): Embrapa Agrobiologia.

HAMILTON, S. D.; CHALK, P. M.; SMITH, C. J.; HOPMANS, P. Effect of N fertilizer rate on the estimation of N2 fixation by isotope dilution. Soil Biol. Biochem., v.23, n.12, p.1105-1110, 1991.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; VICTORIA, R. L.; MURAOKA, T.; PICCOLO, M. C. Effect of a nitrification inhibitor on immobilization and mineralization of soil and fertilizer nitrogen. Soil Biol. Biochem., v. 22, n. 4, p. 533-538, 1990.
Biblioteca(s): Embrapa Agrobiologia.

INACIO, C. de T.; MAGALHÃES, A. M. T.; CHALK, P. M. From fertilizer to food: tracing N dynamics in conventional and organic cropping systems using 15N. In: INTERNATIONAL SYMPOSIUM ON MANAGING SOILS FOR FOOD SECURITY AND CLIMATE CHANGE ADAPTATIION AND MITIGATION, 2012, Viena, Austria. Synopses... Viena: IAEA, 2012. p. 415-416
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/70668/1/From.pdf
Biblioteca(s): Embrapa Solos.

BODDEY, R. M.; CHALK, P. M.; VICTORIA, R. L.; MATSUI, E. Nitrogen fixation by nodulated soybean under tropical field conditions estimated by the 15N isotope dilution technique. Soil Biol. Biochem., v.16, p.583-589, 1984.
Biblioteca(s): Embrapa Agrobiologia.

SMITH, C. J.; CHALK, P. M.; NOBLE, C. L.; PRENDERGAST, J. B.; ROBERTSON, F. Nitrogen fixation in a white clover-grass pasture irrigated with saline groundwater. Irrig. Sci., v.13, p.189-194, 1993.
Biblioteca(s): Embrapa Agrobiologia.

INACIO, C. de T.; CABALLERO, S. S. U.; CHALK, P. M. Nitrogen and carbon isotope composition of organic Fertilizers. In: CONGRESSO BRASILEIRO DE CIÊNCIAS DO SOLO, 34., 2013. Florianópolis. Anais... Viçosa, MG: Sociedade Brasileira de ciência do solo, 2013.
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/87990/1/Nitrogen-and-Carbon-Isotope-Compostion-of-Organic-Fertilizers.pdf
Biblioteca(s): Embrapa Solos.

INACIO, C. de T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. Nitrogen isotopic composition of n-sources, vegetables and soil from two organic farming systems. In: NITROGEN WORKSHOP: THE NITROGEN CHALLENGE: BUILDING A BLUEPRINT FOR NITROGEN USE EFFICIENCY AND FOOD SECURITY, 18., 2014, Lisboa. Resumo... Lisboa: Instituto Superior de Agronomia, CEER: Biosystens Engineering; Évora: Nacional de Ivestigação Agrícola e Veterinária; Viena: International Nitrogen Initiative, 2014.
Biblioteca(s): Embrapa Solos.

INACIO, C. T.; URQUIAGA, S.; CHALK, P. M.; ALVES, B. J. R. Nitrogen loss (NH3, N2O) patterns in bench-scale composting. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 4., 2015, Rio de Janeiro. Anais... Brasília, DF: Embrapa, 2015.
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/138269/1/2015-158.pdf
Biblioteca(s): Embrapa Solos.

HAMILTON, S. D.; CHALK, P. M.; UNKOVICH, M. J.; HOPMANS, P.; SMITH, C. J. The measurement of fertilizer S uptake by plants using radioactive and stable isotopes. Appl. Radiat. Isot., v.42, n.11, p.1099-1101, 1991.
Biblioteca(s): Embrapa Agrobiologia.

HAMILTON, S. D.; SMITH, C. J.; CHALK, P. M.; HOPMANS, P. A model based on measurement of soil and plant 15N enrichment to estimate N2 fixation by soybean (Glycine max L. Merrill) grown in pots. Soil Biol. Biochem., v.24, n.1, p.71-78, 1992.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; CRASWELL, E. T.; POLIDORO, J. C.; CHEN, D. Fate and efficiency of 15 N-labelled slow- and controlled-release fertilizers. Nutrient Cycling in Agroecosystems, v. 102, n. 2, p. 167-178, Jun. 2015.
Biblioteca(s): Embrapa Solos.

SMITH, C. J.; CHALK, P. M.; HAMILTON, S. D.; HOPMANS, P. Estimating N2 fixation by field-grown lupins (Lupinus angustifolius L.) using soil and plant 15N enrichment. Biol. Fertil. Soils, v.13, n.4, p.235-241, 1992.
Biblioteca(s): Embrapa Agrobiologia.

HAMILTON, S. D.; CHALK, P. M.; SMITH, C. J.; HOPMANS, P. Evaluation of reference plants by labelling with 35S in the estimation of N2 fixation by 15N isotope dilution. Plant Soil, v. 145, n. 2, p. 177-185, 1992.
Biblioteca(s): Embrapa Agrobiologia.

CHALK, P. M.; ALVES, B. J. R.; BODDEY, R. M.; URQUAGA, S. Integrated effects of abiotic stresses on inoculant performance, legume growth and symbiotic dependence estimated by 15 N dilution. Plant and Soil Online, 16 oct., 2009 DOI 10.1007/s11104-009-0187-7
Biblioteca(s): Embrapa Agrobiologia.

INACIO, C. T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. Identifying N fertilizer regime and vegetable production system in tropical Brazil using 15N natural abundance. Journal of the Science of Food and Agriculture, v. 95, n. 15, p. 3025-3032, Dec. 2015.
Biblioteca(s): Embrapa Solos.

INACIO, C. de T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. Identifying N fertilizer regime and vegetable production system in tropical Brazil using 15 N natural abundance. Journal of the Science of Food and Agriculture, London, UK, v. 95, p. 3025-3032, 2015.
Biblioteca(s): Embrapa Agrobiologia.

INACIO, C. de T.; MAGALHÃES, A. M. T.; SOUZA, P. O.; CHALK, P. M.; URQUIAGA, S. The relative isotopic abundance (delta13C, delta15N) during composting of agricultural wastes in relation to compost quality and feedstock. Isotopes in Environmental and Health Studies, v. 54, n. 2, p. 185-195, 2018.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Solos.

CHALK, P. M.; INACIO, C. T.; BALIEIRO, F. C.; ROUWS, J. R. C. Do techniques based on 15N enrichment and 15N natural abundance give consistent estimates of the symbiotic dependence of N2-fixing plants? Plant and Soil, v. 399, n. 1, p. 415-426, Feb. 2016.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Solos.

CHALK, P. M.; MAGALHÃES, A. M. T.; INACIO, C. de T. Towards an understanding of the dynamics of compost N in the soil-plant-atmosphere system using 15N tracer. Plant and Soil, v. 362, n. 1/2, p. 373-388, Jan. 2013.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; INACIO, C. T.; CRASWELL, E. T.; CHEN, D. On the usage of absolute (x) and relative (delta) values of 15N abundance. Soil Biology & Biochemistry, v. 85, p. 51-53, Jun. 2015.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; INACIO, C. T.; CRASWELL, E. T.; CHEN, D. On the usage of absolute (x) and relative (delta) values of 15N abundance. Soil Biology & Biochemistry, v. 85, p. 51-53, Jun. 2015.
Biblioteca(s): Embrapa Agrobiologia.

BODDEY, R. M.; CHALK, P. M.; VICTORIA, R. L.; MATSUI, E.; DOBEREINER, J. The use of the 15N isotope dilution technique applied to the estimation of biological nitrogen fixation associated with Paspalum notatum cv. Batatais in the field. Soil Biol. Biochem., v. 15, p. 25-32, 1983.
Biblioteca(s): Embrapa Agrobiologia.

BODDEY, R. M.; CHALK, P. M.; VICTORIA, R. L.; MATSUI, E.; DOBEREINER, J. The use of the 15N isotope dilution technique to estimate the contribution of associated biological nitrogen fixation to the nitrogen nutrition of Paspalum notatum cv. batatais. Can. J. Microbiol., v.29, p.1036-1045, 1983.
Biblioteca(s): Embrapa Agrobiologia.

SOUZA, R. F.; ARAÚJO, E. S.; URQUIAGA, S.; ALVES, B. J. R.; CHALK, P. M.; BODDEY, R. M. Comparação entre duas fontes de N na marcação da planta de soja com 15N para estimativa do N total do sistema radicular. Seropédica: Embrapa Agrobiologia, 2006. 4 p. Trabalho apresentado na VI Semana Científi ca Johanna Döbereiner, Seropédica/RJ, 17 a 19 de outubro de 2006.
Biblioteca(s): Embrapa Agrobiologia.

HUMPHREYS, E.; MUIRHEAD, W. A.; MELHUISH, F. M.; WHITE, R. J. G.; CHALK, P. M.; DOUGLAS, L. A. Effects of time of urea application on combine-sown calrose rice in south east Australia. II. Mineral nitrogen transformations in the soil-water system. Aust. J. Agric. Res., v.38, n.1, p.113-127, 1987.
Biblioteca(s): Embrapa Agrobiologia.

SOUZA, R. F.; ARAÚJO, E. S.; URQUIAGA, S.; ALVES, B. J. R.; CHALK, P. M.; BODDEY, R. M. Estimativa do nitrogênio subterrâneo na planta de soja pela marcação foliar com 15N: influência da fonte de marcação. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 30., 2005, Recife. Solos: sustentabilidade e qualidade ambiental. Recife: Sociedade Brasileira de Ciência do Solo, 2005. 4 p. CD ROM.
Biblioteca(s): Embrapa Agrobiologia.

O CONNOR, G. E.; EVANS, J.; FETTELL, N. A.; BAMFORTH, I.; STUCHBERRY, J.; HEENAN, D. P.; CHALK, P. M. Sowing date and varietal effects on the N2 fixation of field pea and implications for improvement of soil nitrogen. Aust. J. Agric. Res., v.44, p.151-163, 1993.
Biblioteca(s): Embrapa Agrobiologia.

INACIO, C. de T.; NUNES, J. C.; ANDRIOLO, J. L.; CHALK, P. M.; GIACOMINI, S. J.; DE CONTI, L.; KRUG, A. V.; PAULA, B. V. de; BRUNETTO, G. Organic, conventional and hydroponic vegetables: can 15N natural abundance of farm N inputs differentiate mode of production? Scientia Horticulturae, v. 265, 109219, Apr. 2020.
Biblioteca(s): Embrapa Solos.

CHALK, P. M.; PEOPLES, M. B.; MCNEILL, A. M.; BODDEY, R. M.; UNCOVICHI, M. J.; GARDENER, M. J.; SILVA, C. F.; CHEN, D. Methodologies for estimating nitrogen transfer between legumes and companion species in agro-ecosystems: a review of 15N-enriched techniques. Soil Bioloogy & Biochemistry, v. 73, p. 10-21, 2014.
Biblioteca(s): Embrapa Agrobiologia.