Urban Soil Enzyme Activity Restoration with Sandwich Compost

Soil enzyme activity is a good indicator of soil quality. Urban soil is known to be of poor quality for plant growth. Meanwhile, food waste is a significant issue around the world. Sandwich compost made using food waste has the potential to improve soil quality. The objective of this study was to de...

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Main Authors: Chooi Lin Phooi, Elisa Azura Azman, Roslan Ismail
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Chemistry Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4583/10/1/36
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author Chooi Lin Phooi
Elisa Azura Azman
Roslan Ismail
author_facet Chooi Lin Phooi
Elisa Azura Azman
Roslan Ismail
author_sort Chooi Lin Phooi
collection DOAJ
description Soil enzyme activity is a good indicator of soil quality. Urban soil is known to be of poor quality for plant growth. Meanwhile, food waste is a significant issue around the world. Sandwich compost made using food waste has the potential to improve soil quality. The objective of this study was to determine the effect of Sandwich compost on soil enzyme activity. It was conducted using soil-to-Sandwich-compost ratios of 1:1 and 1:2 for 2, 4, 6 and 8 weeks. Then, the soil enzyme activity, pH and moisture content were determined. The findings show that soil pH was stabilized to 7 after 6 and 8 weeks of restoration at the 1:2 ratio. The 1:2 soil-to-Sandwich-compost ratio significantly increased soil moisture content from 12.00 ± 0.286 to 14.3 ± 2.11%. Soil urease activity was enhanced from 1.330 ± 0.0407 to 10.5 ± 0.315 mg NH<sub>3</sub>-H after 8 weeks of restoration, with the opposite effect occurring in catalase activity (0.525 ± 0.0104 to 0.0839 ± 0.00535 mL 0.02 mol/L KMnO<sub>4</sub>/g dry soil). An 8-week soil-restoration period with a 1:2 ratio of soil-to-Sandwich compost is recommended to improve soil enzyme activity and pH.
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spelling doaj.art-7e7cf5a8259e497caad9163096d250032023-11-17T10:17:13ZengMDPI AGChemistry Proceedings2673-45832022-02-011013610.3390/IOCAG2022-12198Urban Soil Enzyme Activity Restoration with Sandwich CompostChooi Lin Phooi0Elisa Azura Azman1Roslan Ismail2Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, MalaysiaDepartment of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, MalaysiaDepartment of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, MalaysiaSoil enzyme activity is a good indicator of soil quality. Urban soil is known to be of poor quality for plant growth. Meanwhile, food waste is a significant issue around the world. Sandwich compost made using food waste has the potential to improve soil quality. The objective of this study was to determine the effect of Sandwich compost on soil enzyme activity. It was conducted using soil-to-Sandwich-compost ratios of 1:1 and 1:2 for 2, 4, 6 and 8 weeks. Then, the soil enzyme activity, pH and moisture content were determined. The findings show that soil pH was stabilized to 7 after 6 and 8 weeks of restoration at the 1:2 ratio. The 1:2 soil-to-Sandwich-compost ratio significantly increased soil moisture content from 12.00 ± 0.286 to 14.3 ± 2.11%. Soil urease activity was enhanced from 1.330 ± 0.0407 to 10.5 ± 0.315 mg NH<sub>3</sub>-H after 8 weeks of restoration, with the opposite effect occurring in catalase activity (0.525 ± 0.0104 to 0.0839 ± 0.00535 mL 0.02 mol/L KMnO<sub>4</sub>/g dry soil). An 8-week soil-restoration period with a 1:2 ratio of soil-to-Sandwich compost is recommended to improve soil enzyme activity and pH.https://www.mdpi.com/2673-4583/10/1/36urban soilBokashikitchen wastesoil stabilizingsoil amendment
spellingShingle Chooi Lin Phooi
Elisa Azura Azman
Roslan Ismail
Urban Soil Enzyme Activity Restoration with Sandwich Compost
Chemistry Proceedings
urban soil
Bokashi
kitchen waste
soil stabilizing
soil amendment
title Urban Soil Enzyme Activity Restoration with Sandwich Compost
title_full Urban Soil Enzyme Activity Restoration with Sandwich Compost
title_fullStr Urban Soil Enzyme Activity Restoration with Sandwich Compost
title_full_unstemmed Urban Soil Enzyme Activity Restoration with Sandwich Compost
title_short Urban Soil Enzyme Activity Restoration with Sandwich Compost
title_sort urban soil enzyme activity restoration with sandwich compost
topic urban soil
Bokashi
kitchen waste
soil stabilizing
soil amendment
url https://www.mdpi.com/2673-4583/10/1/36
work_keys_str_mv AT chooilinphooi urbansoilenzymeactivityrestorationwithsandwichcompost
AT elisaazuraazman urbansoilenzymeactivityrestorationwithsandwichcompost
AT roslanismail urbansoilenzymeactivityrestorationwithsandwichcompost