Net greenhouse gas emissions from manure management using anaerobic digestion technology in a beef cattle feedlot in Brazil

Costa, Ciniro; Cerri, Carlos Eduardo Pellegrino; Pires, Alexandre Vaz

doi:10.1016/j.scitotenv.2014.10.069

Cited by 20 publications

(7 citation statements)

References 26 publications

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“…Numbers of confined cattle in 2015 and 2050 assumed that 15% of total cattle are slaughtered annually 27 and 10% of slaughtered cattle are confined feedlot cattle (according to ANUALPEC, cited by Costa Junior et al . 74 ). Export of P in cattle excreta was taken as 6 kg P animal −1 yr −1 assuming a medium P diet 75 .…”

Section: Methodsmentioning

confidence: 99%

Transitions to sustainable management of phosphorus in Brazilian agriculture

Withers

Rodrigues

Soltangheisi

et al. 2018

Sci Rep

225

161

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Brazil’s large land base is important for global food security but its high dependency on inorganic phosphorus (P) fertilizer for crop production (2.2 Tg rising up to 4.6 Tg in 2050) is not a sustainable use of a critical and price-volatile resource. A new strategic analysis of current and future P demand/supply concluded that the nation’s secondary P resources which are produced annually (e.g. livestock manures, sugarcane processing residues) could potentially provide up to 20% of crop P demand by 2050 with further investment in P recovery technologies. However, the much larger legacy stores of secondary P in the soil (30 Tg in 2016 worth over $40 billion and rising to 105 Tg by 2050) could provide a more important buffer against future P scarcity or sudden P price fluctuations, and enable a transition to more sustainable P input strategies that could reduce current annual P surpluses by 65%. In the longer-term, farming systems in Brazil should be redesigned to operate profitably but more sustainably under lower soil P fertility thresholds.

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Section: Methodsmentioning

confidence: 99%

Transitions to sustainable management of phosphorus in Brazilian agriculture

Withers

Rodrigues

Soltangheisi

et al. 2018

Sci Rep

225

161

View full text Add to dashboard Cite

show abstract

“…Estimates of P in pig and poultry manure follow the numbers presented by Withers et al 22 . A slight difference in the estimates of confined cattle manure was included here, since the current trend is to improve more efficient systems for cattle production in Brazil, resulting in a more concentrated generation of animal manure 60,61 . We assumed that cattle deliver ca.…”

Section: Methodsmentioning

confidence: 99%

Revealing soil legacy phosphorus to promote sustainable agriculture in Brazil

Pavinato¹,

Cherubin²,

Soltangheisi³

et al. 2020

Sci Rep

115

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Exploiting native soil phosphorus (P) and the large reservoirs of residual P accumulated over decades of cultivation, namely “legacy P”, has great potential to overcome the high demand of P fertilisers in Brazilian cropping systems. Long-term field experiments have shown that a large proportion (> 70%) of the surplus P added via fertilisers remains in the soil, mainly in forms not readily available to crops. An important issue is if the amount of legacy P mobilized from soil is sufficient for the crop nutritional demand and over how long this stored soil P can be effectively ‘mined’ by crops in a profitable way. Here we mapped the spatial–temporal distribution of legacy P over the past 50 years, and discussed possible agricultural practices that could increase soil legacy P usage by plants in Brazil. Mineral fertiliser and manure applications have resulted in ~ 33.4 Tg of legacy P accumulated in the agricultural soils from 1967 to 2016, with a current annual surplus rate of 1.6 Tg. Following this same rate, soil legacy P may reach up to 106.5 Tg by 2050. Agricultural management practices to enhance soil legacy P usage by crops includes increasing soil pH by liming, crop rotation, double-cropping, inter-season cover crops, no-tillage system and use of modern fertilisers, in addition to more efficient crop varieties and inoculation with P solubilising microorganisms. The adoption of these practices could increase the use efficiency of P, substantially reducing the new input of fertilisers and thus save up to 31.8 Tg of P fertiliser use (US$ 20.8 billion) in the coming decades. Therefore, exploring soil legacy P is imperative to reduce the demand for mineral fertilisers while promoting long-term P sustainability in Brazil.

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“…Esse modelo de câmara vem sendo bastante empregado nas pesquisas do Laboratório de Biogeoquímica Ambiental do Centro de Energia Nuclear na Agricultura (CENA/USP) (FEIGL;STEUDLER, 1995;MELILLO et al, 2001;MONTIEL et al, 2003;CARMO et al, 2007;SIQUEIRA et al, 2011;CERRI et al, 2013;CARVALHO et al, 2014;BARNEZE et al, 2014;MAZZETO et al, 2015;COSTA JUNIOR et al, 2015) com enfoques em diferentes áreas. 7010 ppmv e N2O= 6,912 ppmv).…”

Section: Methodsunclassified

“…Ambos, são amplamente utilizados para estimar fluxos gasosos tanto em solos agrícolas (HEDLEY et al, 2006;ROCHETTE;ERIKSEN-HAMEL, 2008;LAM et al, 2015;BAYER et al, 2015), quanto em áreas de pastagem (SORDI et al, 2013;LESSA et al, 2014;MAZZETO et al, 2015) e confinamento bovino (COSTA JUNIOR et al, 2015).…”

Section: Introductionunclassified

Emissões de gases de efeito estufa e amônia oriundas da criação de frangos de corte em múltiplos reúsos da cama

Santana¹

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Net greenhouse gas emissions from manure management using anaerobic digestion technology in a beef cattle feedlot in Brazil

Cited by 20 publications

References 26 publications

Transitions to sustainable management of phosphorus in Brazilian agriculture

Transitions to sustainable management of phosphorus in Brazilian agriculture

Revealing soil legacy phosphorus to promote sustainable agriculture in Brazil

Emissões de gases de efeito estufa e amônia oriundas da criação de frangos de corte em múltiplos reúsos da cama

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