One year residual effect of sewage sludge biochar as a soil amendment for maize in a Brazilian oxisol

Joisman Fachini; Thais Rodrigues Coser; Alyson Silva de Araujo; Ailton Teixeira Do Vale; Keiji Jindo; Cícero Célio de Figueiredo

doi:10.3390/su13042226

One year residual effect of sewage sludge biochar as a soil amendment for maize in a Brazilian oxisol

Joisman Fachini, Thais Rodrigues Coser, Alyson Silva de Araujo, Ailton Teixeira Do Vale, Keiji Jindo, Cícero Célio de Figueiredo^*

^*Corresponding author for this work

Applied Ecology

Research output: Contribution to journal › Article › Academic › peer-review

6 Citations (Scopus)

Abstract

The thermochemical transformation of sewage sludge (SS) to biochar (SSB) allows exploring the advantages of SS and reduces possible environmental risks associated with its use. Recent studies have shown that SSB is nutrient-rich and may replace mineral fertilizers. However, there are still some questions to be answered about the residual effect of SSB on soil nutrient availability. In addition, most of the previous studies were conducted in pots or soil incubations. Therefore, the residual effect of SSB on soil properties in field conditions remains unclear. This study shows the results of nutrient availability and uptake as well as maize yield the third cropping of a three-year consecutive corn cropping system. The following treatments were compared: (1) control: without mineral fertilizer and biochar; (2) NPK: with mineral fertilizer; (3) SSB300: with biochar produced at 300^◦C; (4) SSB300+NPK; (5) SSB500: with biochar produced at 500^◦C; and (6) SSB500+NPK. The results show that SSB has one-year residual effects on soil nutrient availability and nutrient uptake by maize, especially phosphorus. Available soil P contents in plots that received SSB were around five times higher than the control and the NPK treatments. Pyrolysis temperature influenced the SSB residual effect on corn yield. One year after suspending the SSB application, SSB300 increased corn yield at the same level as the application of NPK. SSB300 stood out and promoted higher grain yield in the residual period (8524 kg ha⁻¹ ) than SSB500 (6886 kg ha⁻¹ ). Regardless of pyrolysis temperature, biochar boosted the mineral fertilizer effect resulting in higher grain yield than the exclusive application of NPK. Additional long-term studies should be focused on SSB as a slow-release phosphate fertilizer.

Original language	English
Article number	2226
Pages (from-to)	1-14
Number of pages	14
Journal	Sustainability
Volume	13
Issue number	4
DOIs	https://doi.org/10.3390/su13042226
Publication status	Published - 19 Feb 2021

Keywords

Oxisol
Phosphorus
Pyrolysis
Wastewater treatment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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https://edepot.wur.nl/543914Licence: CC BY

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title = "One year residual effect of sewage sludge biochar as a soil amendment for maize in a Brazilian oxisol",

abstract = "The thermochemical transformation of sewage sludge (SS) to biochar (SSB) allows exploring the advantages of SS and reduces possible environmental risks associated with its use. Recent studies have shown that SSB is nutrient-rich and may replace mineral fertilizers. However, there are still some questions to be answered about the residual effect of SSB on soil nutrient availability. In addition, most of the previous studies were conducted in pots or soil incubations. Therefore, the residual effect of SSB on soil properties in field conditions remains unclear. This study shows the results of nutrient availability and uptake as well as maize yield the third cropping of a three-year consecutive corn cropping system. The following treatments were compared: (1) control: without mineral fertilizer and biochar; (2) NPK: with mineral fertilizer; (3) SSB300: with biochar produced at 300◦C; (4) SSB300+NPK; (5) SSB500: with biochar produced at 500◦C; and (6) SSB500+NPK. The results show that SSB has one-year residual effects on soil nutrient availability and nutrient uptake by maize, especially phosphorus. Available soil P contents in plots that received SSB were around five times higher than the control and the NPK treatments. Pyrolysis temperature influenced the SSB residual effect on corn yield. One year after suspending the SSB application, SSB300 increased corn yield at the same level as the application of NPK. SSB300 stood out and promoted higher grain yield in the residual period (8524 kg ha−1 ) than SSB500 (6886 kg ha−1 ). Regardless of pyrolysis temperature, biochar boosted the mineral fertilizer effect resulting in higher grain yield than the exclusive application of NPK. Additional long-term studies should be focused on SSB as a slow-release phosphate fertilizer.",

keywords = "Oxisol, Phosphorus, Pyrolysis, Wastewater treatment",

author = "Joisman Fachini and Coser, {Thais Rodrigues} and {de Araujo}, {Alyson Silva} and Vale, {Ailton Teixeira Do} and Keiji Jindo and {de Figueiredo}, {C{\'i}cero C{\'e}lio}",

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AU - Fachini, Joisman

AU - Coser, Thais Rodrigues

AU - de Araujo, Alyson Silva

AU - Vale, Ailton Teixeira Do

AU - Jindo, Keiji

AU - de Figueiredo, Cícero Célio

PY - 2021/2/19

Y1 - 2021/2/19

N2 - The thermochemical transformation of sewage sludge (SS) to biochar (SSB) allows exploring the advantages of SS and reduces possible environmental risks associated with its use. Recent studies have shown that SSB is nutrient-rich and may replace mineral fertilizers. However, there are still some questions to be answered about the residual effect of SSB on soil nutrient availability. In addition, most of the previous studies were conducted in pots or soil incubations. Therefore, the residual effect of SSB on soil properties in field conditions remains unclear. This study shows the results of nutrient availability and uptake as well as maize yield the third cropping of a three-year consecutive corn cropping system. The following treatments were compared: (1) control: without mineral fertilizer and biochar; (2) NPK: with mineral fertilizer; (3) SSB300: with biochar produced at 300◦C; (4) SSB300+NPK; (5) SSB500: with biochar produced at 500◦C; and (6) SSB500+NPK. The results show that SSB has one-year residual effects on soil nutrient availability and nutrient uptake by maize, especially phosphorus. Available soil P contents in plots that received SSB were around five times higher than the control and the NPK treatments. Pyrolysis temperature influenced the SSB residual effect on corn yield. One year after suspending the SSB application, SSB300 increased corn yield at the same level as the application of NPK. SSB300 stood out and promoted higher grain yield in the residual period (8524 kg ha−1 ) than SSB500 (6886 kg ha−1 ). Regardless of pyrolysis temperature, biochar boosted the mineral fertilizer effect resulting in higher grain yield than the exclusive application of NPK. Additional long-term studies should be focused on SSB as a slow-release phosphate fertilizer.

AB - The thermochemical transformation of sewage sludge (SS) to biochar (SSB) allows exploring the advantages of SS and reduces possible environmental risks associated with its use. Recent studies have shown that SSB is nutrient-rich and may replace mineral fertilizers. However, there are still some questions to be answered about the residual effect of SSB on soil nutrient availability. In addition, most of the previous studies were conducted in pots or soil incubations. Therefore, the residual effect of SSB on soil properties in field conditions remains unclear. This study shows the results of nutrient availability and uptake as well as maize yield the third cropping of a three-year consecutive corn cropping system. The following treatments were compared: (1) control: without mineral fertilizer and biochar; (2) NPK: with mineral fertilizer; (3) SSB300: with biochar produced at 300◦C; (4) SSB300+NPK; (5) SSB500: with biochar produced at 500◦C; and (6) SSB500+NPK. The results show that SSB has one-year residual effects on soil nutrient availability and nutrient uptake by maize, especially phosphorus. Available soil P contents in plots that received SSB were around five times higher than the control and the NPK treatments. Pyrolysis temperature influenced the SSB residual effect on corn yield. One year after suspending the SSB application, SSB300 increased corn yield at the same level as the application of NPK. SSB300 stood out and promoted higher grain yield in the residual period (8524 kg ha−1 ) than SSB500 (6886 kg ha−1 ). Regardless of pyrolysis temperature, biochar boosted the mineral fertilizer effect resulting in higher grain yield than the exclusive application of NPK. Additional long-term studies should be focused on SSB as a slow-release phosphate fertilizer.

KW - Oxisol

KW - Phosphorus

KW - Pyrolysis

KW - Wastewater treatment

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DO - 10.3390/su13042226

M3 - Article

AN - SCOPUS:85101903659

SN - 2071-1050

VL - 13

SP - 1

EP - 14

JO - Sustainability

JF - Sustainability

IS - 4

M1 - 2226

ER -

One year residual effect of sewage sludge biochar as a soil amendment for maize in a Brazilian oxisol

Abstract

Keywords

UN SDGs

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