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|Research center of Embrapa/Collection:||Embrapa Pecuária Sudeste - Capítulo em livro científico (ALICE)|
|Type of Material:||Capítulo em livro científico (ALICE)|
|Authors:||BERNARDI, A. C. de C.|
PRIMAVESI, O. M. A. S. P. R.
OLIVEIRA, P. P. A.
PEZZOPANE, J. R. M.
MILORI, D. M. B. P.
SILVA, W. T. L. da
SIMOES, M. L.
MARTIN NETO, L.
|Additional Information:||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.|
|Title:||Increasing yield and carbon sequestration in a signalgrass pasture by liming and fertilization in São Carlos, São Paulo, Brazil.|
|Publisher:||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.|
Soil organic carbon stocks
Adaptation to climate change
Mitigation to climate change
|Description:||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.|
|NAL Thesaurus:||Soil management|
Greenhouse gas emissions
|Appears in Collections:||Capítulo em livro científico (CPPSE)|