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Jaswinder Singh (singhjassi75@yahoo.co.in), Sharanpreet Singh (sharanpreetkahlon@gmail.com) and Adarsh Pal Vig (dr.adarshpalvig@gmail.com)
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Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2016, vol. 18, issue 6, pages 1521-1539
Abstract: Abstract Earthworms are so closely incorporated into the soil structure that they are not calculated easily from the soil. Due to this property, their extraction from soil is tedious and time-consuming. Different methods have been used for their extraction from the soil, and efficiency of each method is affected by physical properties, viz., temperature and moisture of the soil. This study explored the advantage and disadvantage of different sampling methods for the extraction of earthworms such as hand sorting, octet method, formalin method, mustard extraction method, allyl isothiocyanate (AITC), and onion extraction method. Extraction efficiency of formalin is 20–60 times more as compared to hand sorting, but hand sorting gives satisfactory results for earthworms of more than 0.2 g live weight, and cocoons can also be recovered by this method. Octet method is effective in extracting anecic species and could easily be applied to site where chemical extraction is not a viable option. Extraction by mustard and AITC is simple, low cost, and more efficient for the extraction of deep-burrowing anecic species. The onion extraction solution is low cost and nontoxic which can be used as alternative to formalin. Like mustard, the onion solution is also inexpensive and not harmful to the earthworms and environment.
Keywords: Earthworm; Hand sorting; Formalin method; Mustard extraction and AITC; Onion extraction method (search for similar items in EconPapers)
Date: 2016
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Jaswinder Singh (singhjassi75@yahoo.co.in), Sharanpreet Singh (sharanpreetkahlon@gmail.com) and Adarsh Pal Vig (dr.adarshpalvig@gmail.com)
Additional contact information
Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2016, vol. 18, issue 6, pages 1521-1539
Abstract: Abstract Earthworms are so closely incorporated into the soil structure that they are not calculated easily from the soil. Due to this property, their extraction from soil is tedious and time-consuming. Different methods have been used for their extraction from the soil, and efficiency of each method is affected by physical properties, viz., temperature and moisture of the soil. This study explored the advantage and disadvantage of different sampling methods for the extraction of earthworms such as hand sorting, octet method, formalin method, mustard extraction method, allyl isothiocyanate (AITC), and onion extraction method. Extraction efficiency of formalin is 20–60 times more as compared to hand sorting, but hand sorting gives satisfactory results for earthworms of more than 0.2 g live weight, and cocoons can also be recovered by this method. Octet method is effective in extracting anecic species and could easily be applied to site where chemical extraction is not a viable option. Extraction by mustard and AITC is simple, low cost, and more efficient for the extraction of deep-burrowing anecic species. The onion extraction solution is low cost and nontoxic which can be used as alternative to formalin. Like mustard, the onion solution is also inexpensive and not harmful to the earthworms and environment.
Keywords: Earthworm; Hand sorting; Formalin method; Mustard extraction and AITC; Onion extraction method (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations Track citations by RSS feed
Downloads: (external link)
http://link.springer.com/10.1007/s10668-015-9703-5 Abstract (text/html)
Access to the full text of the articles in this series is restricted.
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text
Persistent link: http://EconPapers.repec.org/RePEc:spr:endesu:v:18:y:2016:i:6:d:10.1007_s10668-015-9703-5
Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/10668
Access Statistics for this article
Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development is currently edited by Luc Hens
More articles in Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development from Springer
Series data maintained by Sonal Shukla (sonal.shukla@springer.com).
For further details log on website :
http://econpapers.repec.org/article/sprendesu/v_3a18_3ay_3a2016_3ai_3a6_3ad_3a10.1007_5fs10668-015-9703-5.htm
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