Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals

Abstract Purpose Use of silicate rock powders as fertilizer improves nutrient cycling, thus benefitting agriculture. The availability of nutrients to plants is often low, but can be increased when rock powder is vermicomposted and added. However, these powders can be rich in heavy metals, which may...

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Main Authors: Maria Eunice Paula de Souza, Irene Maria Cardoso, André Mundstock Xavier de Carvalho, Andreia Paiva Lopes, Ivo Jucksch
Format: Article
Language:English
Published: OICC Press 2019-02-01
Series:International Journal of Recycling of Organic Waste in Agriculture
Subjects:
Online Access:http://link.springer.com/article/10.1007/s40093-019-0244-z
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author Maria Eunice Paula de Souza
Irene Maria Cardoso
André Mundstock Xavier de Carvalho
Andreia Paiva Lopes
Ivo Jucksch
author_facet Maria Eunice Paula de Souza
Irene Maria Cardoso
André Mundstock Xavier de Carvalho
Andreia Paiva Lopes
Ivo Jucksch
author_sort Maria Eunice Paula de Souza
collection DOAJ
description Abstract Purpose Use of silicate rock powders as fertilizer improves nutrient cycling, thus benefitting agriculture. The availability of nutrients to plants is often low, but can be increased when rock powder is vermicomposted and added. However, these powders can be rich in heavy metals, which may impair their use. We evaluated maize growth and heavy metals in plants and soil after fertilization with vermicomposted gneiss or steatite powders. Method Vermicompost was prepared with cattle manure, with or without gneiss or steatite powders. The experimental units were kept in the dark at room temperature for 70 days. Subsequently, a greenhouse experiment was carried out with maize grown in highly weathered oxisol soil and fertilized with vermicompost alone, or with gneiss or steatite powder. Results A small proportion of heavy metals was immobilized in the earthworm bodies, but did not hinder their growth. Maize growth was superior in the treatment with vermicomposted gneiss powder. The gneiss-enriched treatment contributed to increased Zn concentration in plants and may also be an alternative to Zn fertilization. High Ni and Cr concentrations in steatite powder apparently induced higher levels of these elements in plants. However, metal concentrations in the soil after cultivation in all the treatments were below acceptable limits. Conclusion Increased plant growth in gneiss-enriched vermicompost suggests the possibility of using this material to enrich vermicompost with nutrients, thus improving the chemical quality of organic fertilizer. Use of steatite powder in agriculture deserves further investigation.
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spelling doaj-art-f47d897a7a634275b9240a55d0ebd3df2025-02-03T00:35:26ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152019-02-018323324010.1007/s40093-019-0244-zGneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metalsMaria Eunice Paula de Souza0Irene Maria Cardoso1André Mundstock Xavier de Carvalho2Andreia Paiva Lopes3Ivo Jucksch4Soil Science Department, Federal University of ViçosaSoil Science Department, Federal University of ViçosaInstitute of Agricultural Sciences, Federal University of ViçosaSoil Science Department, Federal University of ViçosaSoil Science Department, Federal University of ViçosaAbstract Purpose Use of silicate rock powders as fertilizer improves nutrient cycling, thus benefitting agriculture. The availability of nutrients to plants is often low, but can be increased when rock powder is vermicomposted and added. However, these powders can be rich in heavy metals, which may impair their use. We evaluated maize growth and heavy metals in plants and soil after fertilization with vermicomposted gneiss or steatite powders. Method Vermicompost was prepared with cattle manure, with or without gneiss or steatite powders. The experimental units were kept in the dark at room temperature for 70 days. Subsequently, a greenhouse experiment was carried out with maize grown in highly weathered oxisol soil and fertilized with vermicompost alone, or with gneiss or steatite powder. Results A small proportion of heavy metals was immobilized in the earthworm bodies, but did not hinder their growth. Maize growth was superior in the treatment with vermicomposted gneiss powder. The gneiss-enriched treatment contributed to increased Zn concentration in plants and may also be an alternative to Zn fertilization. High Ni and Cr concentrations in steatite powder apparently induced higher levels of these elements in plants. However, metal concentrations in the soil after cultivation in all the treatments were below acceptable limits. Conclusion Increased plant growth in gneiss-enriched vermicompost suggests the possibility of using this material to enrich vermicompost with nutrients, thus improving the chemical quality of organic fertilizer. Use of steatite powder in agriculture deserves further investigation.http://link.springer.com/article/10.1007/s40093-019-0244-zFertilizationStonemealManurePlant growthVermicompost
spellingShingle Maria Eunice Paula de Souza
Irene Maria Cardoso
André Mundstock Xavier de Carvalho
Andreia Paiva Lopes
Ivo Jucksch
Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
International Journal of Recycling of Organic Waste in Agriculture
Fertilization
Stonemeal
Manure
Plant growth
Vermicompost
title Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
title_full Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
title_fullStr Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
title_full_unstemmed Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
title_short Gneiss and steatite vermicomposted with organic residues: release of nutrients and heavy metals
title_sort gneiss and steatite vermicomposted with organic residues release of nutrients and heavy metals
topic Fertilization
Stonemeal
Manure
Plant growth
Vermicompost
url http://link.springer.com/article/10.1007/s40093-019-0244-z
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