Increasing yield and carbon sequestration in a signalgrass pasture by liming and fertilization in São Carlos, São Paulo, Brazil.

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dc.contributorALBERTO 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.
dc.creatorBERNARDI, A. C. de C.
dc.creatorSEGNINI, A.
dc.creatorPRIMAVESI, O. M. A. S. P. R.
dc.creatorOLIVEIRA, P. P. A.
dc.creatorPEZZOPANE, J. R. M.
dc.creatorBERNDT, A.
dc.creatorBAYER, C.
dc.creatorMILORI, D. M. B. P.
dc.creatorSILVA, W. T. L. da
dc.creatorSIMOES, M. L.
dc.creatorMARTIN NETO, L.
dc.date2021-11-18T12:01:20Z
dc.date2021-11-18T12:01:20Z
dc.date2021-11-18
dc.date2021
dc.date.accessioned2026-07-07T05:29:21Z
dc.descriptionThis 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.
dc.formatp.352-363.
dc.identifierIn: 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.
dc.identifier978-92-5-134897-0
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1136264
dc.identifier.urihttp://hdl.handle.net/123456789/492752
dc.languageeng
dc.rightsopenAccess
dc.subjectMineral fertilization
dc.subjectSoil organic carbon stocks
dc.subjectAdaptation to climate change
dc.subjectMitigation to climate change
dc.subjectPotential drawbacks
dc.subjectILPF
dc.subjectSoil management
dc.subjectLiming
dc.subjectNo-tillage
dc.subjectGrasslands
dc.subjectGreenhouse gas emissions
dc.titleIncreasing yield and carbon sequestration in a signalgrass pasture by liming and fertilization in São Carlos, São Paulo, Brazil.
dc.typeParte de livro

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