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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Release of nutrients and organic carbon in different soil types from hydrochar obtained using sugarcane bagasse and vinasse

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Author(s):
Bento, Lucas Raimundo [1] ; Ramiro Castro, Antonio Joel [2] ; Moreira, Altair Benedito [1] ; Ferreira, Odair Pastor [2] ; Bisinoti, Marcia Cristina [1] ; Melo, Camila Almeida [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, UNESP, Lab Estudos Ciencias Ambientais, Dept Quim & Cienc, Campus Sao Jose do Rio Preto, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Fed Ceara, Dept Fis, Lab Mat Funcionais Avancados LaMFA, POB 6030, BR-60455900 Fortaleza, Ceara - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Geoderma; v. 334, p. 24-32, JAN 15 2019.
Web of Science Citations: 3
Abstract

Hydrothermal carbonization of byproducts from the sugarcane industry generates a solid material (hydrochar) rich in carbon and nutrients with the potential to be used as a soil conditioner. In this context, the objective of this work was to evaluate the nutrient release process from hydrochar with the aim of improving soil quality. To do this, experiments were performed evaluating the concentration of NO3-, PO4-3, K, Ca, Mg, Fe and total organic carbon leached from a column filled with soil and different hydrochar proportions during one month. The proportions of hydrochar were 1 and 4% (w/w) applied to sand, ultisol, and oxisol. Nitrogen and phosphorus were immobilized in the soils due to the high organic carbon released that increase microbial activity and to the presence of iron and aluminum oxides, respectively. The oxisol retains part of the carbon released by the hydrochar due to its high content of silt and clay. Only part of the carbon and nutrients of the hydrochar was released, indicating a recalcitrant material. The prepared hydrochar provided nutrients and organic carbon depending on the soil type to which it was applied. This study shows that hydrochar, if applied in the appropriate proportion, can enhance the soil fertility. (AU)

FAPESP's process: 15/22954-1 - Metal transportation and natural organic matter characterization from rivers of Itacoatiara, Amazônia
Grantee:Márcia Cristina Bisinoti
Support Opportunities: Regular Research Grants
FAPESP's process: 13/21776-7 - Development of a hydrochar from waste sugarcane industry using hydrothermal carbonization seeking agricultural application
Grantee:Camila de Almeida Melo
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/00206-3 - Release of nutrients and organic carbon in soils using hyrochar obtained with sugar cane industry residues
Grantee:Lucas Raimundo Bento
Support Opportunities: Scholarships in Brazil - Scientific Initiation