Data/hora: 01/06/2024 12:24:56

Biblioteca(s): | Embrapa Instrumentação; Embrapa Pecuária Sudeste.
Tipo da produção científica: | Capítulo em Livro Técnico-Científico
Data corrente: | 18/11/2021
Data da última atualização: | 09/01/2024
Autoria: | BERNARDI, A. C. de C.; SEGNINI, A.; PRIMAVESI, O. M. A. S. P. R.; OLIVEIRA, P. P. A.; PEZZOPANE, J. R. M.; BERNDT, A.; BAYER, C.; MILORI, D. M. B. P.; SILVA, W. T. L. da; SIMOES, M. L.; MARTIN NETO, L.
Afiliação: | ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; ALINE SEGNINI, USP; ODO MARIA ARTUR S P R PRIMAVESI, CPPSE; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; ALEXANDRE BERNDT, CPPSE; CIMÉLIO BAYER, UFRGS; DEBORA MARCONDES BASTOS PEREIRA, CNPDIA; WILSON TADEU LOPES DA SILVA, CNPDIA; MARCELO LUIZ SIMOES, CNPDIA; LADISLAU MARTIN NETO, CNPDIA.
Título: | Increasing yield and carbon sequestration in a signalgrass pasture by liming and fertilization in São Carlos, São Paulo, Brazil.
Ano de publicação: | 2021
Fonte/Imprenta: | In: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS. Recarbonizing global soils: a technical manual of recommended management practices. Rome: FAO, 2021. (Cropland, grassland, integrated systems and farming approaches: case studeis, v.4). Cap. 32.
Páginas: | p.352-363.
ISBN: | 978-92-5-134897-0
Idioma: | Inglês
Conteúdo: | This study case aimed to evaluate the impact of liming and mineral fertilization of a Signalgrass pasture on C accumulation in surface and deeper layers of a Brazilian Oxisol. A 27-yr old Signalgrass pasture ((Urochloa decumbens cv. Basilisk Stapf (Syn: Brachiaria)) was used in the trial. This pasture has been grazed in a stocking rate of one animal per ha and did not receive any liming and fertilizer until the beginning of the experiment. Treatments used in a 6-year trial are described in Table 129, and both limestone and fertilizers were applied to the soil surface with no soil plowing or disc-harrowing. Soil C stocks were calculated in equivalent soil mass, taking the native Cerrado (Savanna forest) soil mass as reference. Limed soil (0-100 cm) under non-fertilized pasture showed an annual increase of 1.71 tC/ha after 6 years over the soil under native vegetation. In contrast, fertilization of low productive and degraded pasture resulted in C accumulation rates varying from 5.4 to 7.2 t/ha/yr. The results illustrate that despite the C saturation in the surface soil layer, as evidenced by a sigmoid relationship between C contents in the whole soil and the clay fraction through the soil profile, the large proportion of C accumulation (from 55 to 68 percent) in deeper soil layers makes tropical pasture soils suitable long-term C sinks.
Palavras-Chave: | Adaptation to climate change; ILPF; Mineral fertilization; Mitigation to climate change; Potential drawbacks; Soil organic carbon stocks.
Thesaurus Nal: | Grasslands; Greenhouse gas emissions; Liming; No-tillage; Soil management.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/227872/1/IncreasingYieldCarbon.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)

Exemplares:

CPPSE - (25460-1) - UPC - PL - DD - PROCI-2021.00162 - BER - 2021.00187 - DIS
CNPDIA - (17908-1) - UPC - PL - DD - PROCI.21/151 -  - 2021/155 - DIS