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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Language: | English |
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OICC Press
2019-02-01
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Series: | International Journal of Recycling of Organic Waste in Agriculture |
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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. |
format | Article |
id | doaj-art-f47d897a7a634275b9240a55d0ebd3df |
institution | Kabale University |
issn | 2195-3228 2251-7715 |
language | English |
publishDate | 2019-02-01 |
publisher | OICC Press |
record_format | Article |
series | International Journal of Recycling of Organic Waste in Agriculture |
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 |
work_keys_str_mv | AT mariaeunicepauladesouza gneissandsteatitevermicompostedwithorganicresiduesreleaseofnutrientsandheavymetals AT irenemariacardoso gneissandsteatitevermicompostedwithorganicresiduesreleaseofnutrientsandheavymetals AT andremundstockxavierdecarvalho gneissandsteatitevermicompostedwithorganicresiduesreleaseofnutrientsandheavymetals AT andreiapaivalopes gneissandsteatitevermicompostedwithorganicresiduesreleaseofnutrientsandheavymetals AT ivojucksch gneissandsteatitevermicompostedwithorganicresiduesreleaseofnutrientsandheavymetals |