Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress

Biochar enhances soil fertility by improving the soil physical, chemical and microbiological properties. The aim of this study was to investigate the impact of corn cob-derived biochar on soil enzymatic activity, organic carbon, aggregate stability and soil microbial biomass carbon under drought str...

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Autores principales:	Liaqat Ali, Natasha Manzoor, Xuqing Li, Muhammad Naveed, Sajid Mahmood Nadeem, Muhammad Rashid Waqas, Muhammad Khalid, Aown Abbas, Temoor Ahmed, Bin Li, Jianli Yan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	biochar drought soil quality aggregate stability β-glucosidase phosphatase Agriculture S
Acceso en línea:	https://doaj.org/article/84724561823e47dd99feb7687b3cf9e5
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spelling	oai:doaj.org-article:84724561823e47dd99feb7687b3cf9e52021-11-25T16:10:50ZImpact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress10.3390/agronomy111123002073-4395https://doaj.org/article/84724561823e47dd99feb7687b3cf9e52021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2300https://doaj.org/toc/2073-4395Biochar enhances soil fertility by improving the soil physical, chemical and microbiological properties. The aim of this study was to investigate the impact of corn cob-derived biochar on soil enzymatic activity, organic carbon, aggregate stability and soil microbial biomass carbon under drought stress. Biochar was prepared from crushed corn cobs pyrolyzed at 300 °C and 400 °C and applied at a ratio of 1% (<i>w/w</i>) and 3% (<i>w/w</i>) filled in pots. In each pot, three field capacity (FC) levels, i.e., 100, 70 and 40%, were maintained gravimetrically. Results showed that biochar application improved the growth (plant height and root length) and relative water content in maize leaves under drought stress, while it reduced electrolyte leakage compared to a control treatment. Aggregate stability was significantly (<i>p ≤</i> 0.05) higher in biochar amended soil. Moreover, microbial biomass carbon and soil water also increased under drought stress at 70% FC and 40% FC, respectively, where 3% <i>w/w</i> (400 °C) biochar was applied. Among enzymes, β-glucosidase and alkaline phosphatase activity were improved with biochar application. The maximum organic carbon (240%, 246% and 249%, 254% more than control) was calculated in soils where 3% biochar pyrolyzed at 400 °C and 300 °C was mixed with soil, respectively. Similarly, the carbon pool index (CPI) and carbon management index (CMI) were also higher in biochar-amended soil as compared to control treatment. Conclusively, biochar amendment could effectively improve soil quality and maize growth under drought stress.Liaqat AliNatasha ManzoorXuqing LiMuhammad NaveedSajid Mahmood NadeemMuhammad Rashid WaqasMuhammad KhalidAown AbbasTemoor AhmedBin LiJianli YanMDPI AGarticlebiochardroughtsoil qualityaggregate stabilityβ-glucosidasephosphataseAgricultureSENAgronomy, Vol 11, Iss 2300, p 2300 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biochar drought soil quality aggregate stability β-glucosidase phosphatase Agriculture S
spellingShingle	biochar drought soil quality aggregate stability β-glucosidase phosphatase Agriculture S Liaqat Ali Natasha Manzoor Xuqing Li Muhammad Naveed Sajid Mahmood Nadeem Muhammad Rashid Waqas Muhammad Khalid Aown Abbas Temoor Ahmed Bin Li Jianli Yan Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
description	Biochar enhances soil fertility by improving the soil physical, chemical and microbiological properties. The aim of this study was to investigate the impact of corn cob-derived biochar on soil enzymatic activity, organic carbon, aggregate stability and soil microbial biomass carbon under drought stress. Biochar was prepared from crushed corn cobs pyrolyzed at 300 °C and 400 °C and applied at a ratio of 1% (<i>w/w</i>) and 3% (<i>w/w</i>) filled in pots. In each pot, three field capacity (FC) levels, i.e., 100, 70 and 40%, were maintained gravimetrically. Results showed that biochar application improved the growth (plant height and root length) and relative water content in maize leaves under drought stress, while it reduced electrolyte leakage compared to a control treatment. Aggregate stability was significantly (<i>p ≤</i> 0.05) higher in biochar amended soil. Moreover, microbial biomass carbon and soil water also increased under drought stress at 70% FC and 40% FC, respectively, where 3% <i>w/w</i> (400 °C) biochar was applied. Among enzymes, β-glucosidase and alkaline phosphatase activity were improved with biochar application. The maximum organic carbon (240%, 246% and 249%, 254% more than control) was calculated in soils where 3% biochar pyrolyzed at 400 °C and 300 °C was mixed with soil, respectively. Similarly, the carbon pool index (CPI) and carbon management index (CMI) were also higher in biochar-amended soil as compared to control treatment. Conclusively, biochar amendment could effectively improve soil quality and maize growth under drought stress.
format	article
author	Liaqat Ali Natasha Manzoor Xuqing Li Muhammad Naveed Sajid Mahmood Nadeem Muhammad Rashid Waqas Muhammad Khalid Aown Abbas Temoor Ahmed Bin Li Jianli Yan
author_facet	Liaqat Ali Natasha Manzoor Xuqing Li Muhammad Naveed Sajid Mahmood Nadeem Muhammad Rashid Waqas Muhammad Khalid Aown Abbas Temoor Ahmed Bin Li Jianli Yan
author_sort	Liaqat Ali
title	Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
title_short	Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
title_full	Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
title_fullStr	Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
title_full_unstemmed	Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress
title_sort	impact of corn cob-derived biochar in altering soil quality, biochemical status and improving maize growth under drought stress
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/84724561823e47dd99feb7687b3cf9e5
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Impact of Corn Cob-Derived Biochar in Altering Soil Quality, Biochemical Status and Improving Maize Growth under Drought Stress

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