Biochar amendment improves degraded pasturelands in Brazil: environmental and cost-benefit analysis

Agnieszka Ewa Latawiec , Bernardo B. N. Strassburg , Andre B. Junqueira , Ednaldo Araujo , Luiz Fernando D. De Moraes , Helena A. N. Pinto , Ana Castro , Marcio Rangel , Gustavo A. Malaguti , Aline F. Rodrigues , Luis Gustavo Barioni , Etelvino H. Novotny , Gerard Cornelissen , Maiara Mendes , Nilcileny Batista , Jose Guilherme Guerra , Everaldo Zonta , Catarina Jakovac , Sarah E. Hale

Abstract

Most deforested lands in Brazil are occupied by low-productivity cattle ranching. Brazil is the second biggest meat producer worldwide and is projected to increase its agricultural output more than any other country. Biochar has been shown to improve soil properties and agricultural productivity when added to degraded soils, but these effects are context-dependent. The impact of biochar, fertilizer and inoculant on the productivity of forage grasses in Brazil (Brachiaria spp. and Panicum spp.) was investigated from environmental and socio-economic perspectives. We showed a 27% average increase in Brachiaria production over two years but no significant effects of amendment on Panicum yield. Biochar addition also increased the contents of macronutrients, soil pH and CEC. Each hectare amended with biochar saved 91 tonnes of CO2eq through land sparing effect, 13 tonnes of CO2eq sequestered in the soil, equating to U$455 in carbon payments. The costs of biochar production for smallholder farmers, mostly because of labour cost, outweighed the potential benefits of its use. Biochar is 617% more expensive than common fertilizers. Biochar could improve productivity of degraded pasturelands in Brazil if investments in efficient biochar production techniques are used and biochar is subsidized by low emission incentive schemes.
Author Agnieszka Ewa Latawiec (FoPaPE / IoAEaI)
Agnieszka Ewa Latawiec,,
- Institute of Agricultural Engineering and Informatics
, Bernardo B. N. Strassburg
Bernardo B. N. Strassburg,,
-
, Andre B. Junqueira
Andre B. Junqueira,,
-
, Ednaldo Araujo
Ednaldo Araujo,,
-
, Luiz Fernando D. De Moraes
Luiz Fernando D. De Moraes,,
-
, Helena A. N. Pinto
Helena A. N. Pinto,,
-
, Ana Castro
Ana Castro,,
-
, Marcio Rangel
Marcio Rangel,,
-
, Gustavo A. Malaguti
Gustavo A. Malaguti,,
-
, Aline F. Rodrigues
Aline F. Rodrigues,,
-
et al.`
Journal seriesScientific Reports, ISSN 2045-2322, (N/A 140 pkt)
Issue year2019
No9
Pages1-12
Publication size in sheets0.55
ASJC Classification1000 Multidisciplinary
DOIDOI:10.1038/s41598-019-47647-x
URL https://www.nature.com/articles/s41598-019-47647-x
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
File
latawiec-2019.pdf 1,69 MB
Score (nominal)140
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.401; WoS Impact Factor: 2018 = 4.011 (2) - 2018=4.525 (5)
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