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Earthworm populations and cast properties in the soils of oil palm plantations

Oil palm plantations generate a substantial amount of agricultural by-products, such as oil palm empty fruit bunches (EFB) and fronds. These by-products are commonly recycled in the oil palm plantations in order to obtain plant nutrients through decomposition. Information on earthworm species and po...

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Main Authors: Djunita, Tengku Sabrina, Musa, Mohamed Hanafi, Abd Aziz, Nor Azwady, Tengku Muda Mohamed, Mahmud
Format: Article
Language:English
Published: Malaysian Society of Soil Science 2009
Online Access:http://psasir.upm.edu.my/id/eprint/14176/1/Earthworm%20populations%20and%20cast%20properties%20in%20the%20soils%20of%20oil%20palm%20plantations.pdf
http://psasir.upm.edu.my/id/eprint/14176/
http://www.msss.com.my/mjss/v13.php
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spelling my.upm.eprints.141762018-10-05T09:53:35Z http://psasir.upm.edu.my/id/eprint/14176/ Earthworm populations and cast properties in the soils of oil palm plantations Djunita, Tengku Sabrina Musa, Mohamed Hanafi Abd Aziz, Nor Azwady Tengku Muda Mohamed, Mahmud Oil palm plantations generate a substantial amount of agricultural by-products, such as oil palm empty fruit bunches (EFB) and fronds. These by-products are commonly recycled in the oil palm plantations in order to obtain plant nutrients through decomposition. Information on earthworm species and populations and their cast properties in oil palm plantations in different soil types and oil palm tree ages is still lacking. The population and diversity of earthworms, casts and soils were surveyed in 10 m transects using 5 of 25 cm2 quadrat. In all sampling sites, only an endogeic species, Pontoscolex corethrurus Müller discovered. The earthworm population densities were influenced by the age of the oil palm trees and soil types. Under similar soil types and different oil palm ages, the earthworm population densities were inversely related. Four major factors which dictated the heterogeneity of earthworm population in oil palm plantation were: (i) food and soil physical habitat, (ii) exchangeable calcium, (iii) pH, and (iv) exchangeable potassium as determined by principal component analysis (PCA). The earthworm population was positive significantly related to the CEC and exchangeable Ca in the soil (R2=0.66*, n=100). With the exception of the soil C:N ratio, all other soil chemical properties (pH, C, N, total P, plant available P, total K, total Mg, CEC, exchangeable- K, Ca and Mg) were significantly correlated with the earthworm cast properties. Available P was 509 % higher in casts than in the surface soil (r=0.63*, n=100). The cast CEC and exchangeable Ca were strongly correlated with the soil CEC and exchangeable Ca in soil. However, the increase in CEC and exchangeable Ca were 67 and 98%, respectively. The earthworm population was highly correlated with soil CEC and exchangeable Ca. Malaysian Society of Soil Science 2009 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/14176/1/Earthworm%20populations%20and%20cast%20properties%20in%20the%20soils%20of%20oil%20palm%20plantations.pdf Djunita, Tengku Sabrina and Musa, Mohamed Hanafi and Abd Aziz, Nor Azwady and Tengku Muda Mohamed, Mahmud (2009) Earthworm populations and cast properties in the soils of oil palm plantations. Malaysian Journal of Soil Science, 13. pp. 29-42. ISSN 1394-7990 http://www.msss.com.my/mjss/v13.php
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Oil palm plantations generate a substantial amount of agricultural by-products, such as oil palm empty fruit bunches (EFB) and fronds. These by-products are commonly recycled in the oil palm plantations in order to obtain plant nutrients through decomposition. Information on earthworm species and populations and their cast properties in oil palm plantations in different soil types and oil palm tree ages is still lacking. The population and diversity of earthworms, casts and soils were surveyed in 10 m transects using 5 of 25 cm2 quadrat. In all sampling sites, only an endogeic species, Pontoscolex corethrurus Müller discovered. The earthworm population densities were influenced by the age of the oil palm trees and soil types. Under similar soil types and different oil palm ages, the earthworm population densities were inversely related. Four major factors which dictated the heterogeneity of earthworm population in oil palm plantation were: (i) food and soil physical habitat, (ii) exchangeable calcium, (iii) pH, and (iv) exchangeable potassium as determined by principal component analysis (PCA). The earthworm population was positive significantly related to the CEC and exchangeable Ca in the soil (R2=0.66*, n=100). With the exception of the soil C:N ratio, all other soil chemical properties (pH, C, N, total P, plant available P, total K, total Mg, CEC, exchangeable- K, Ca and Mg) were significantly correlated with the earthworm cast properties. Available P was 509 % higher in casts than in the surface soil (r=0.63*, n=100). The cast CEC and exchangeable Ca were strongly correlated with the soil CEC and exchangeable Ca in soil. However, the increase in CEC and exchangeable Ca were 67 and 98%, respectively. The earthworm population was highly correlated with soil CEC and exchangeable Ca.
format Article
author Djunita, Tengku Sabrina
Musa, Mohamed Hanafi
Abd Aziz, Nor Azwady
Tengku Muda Mohamed, Mahmud
spellingShingle Djunita, Tengku Sabrina
Musa, Mohamed Hanafi
Abd Aziz, Nor Azwady
Tengku Muda Mohamed, Mahmud
Earthworm populations and cast properties in the soils of oil palm plantations
author_facet Djunita, Tengku Sabrina
Musa, Mohamed Hanafi
Abd Aziz, Nor Azwady
Tengku Muda Mohamed, Mahmud
author_sort Djunita, Tengku Sabrina
title Earthworm populations and cast properties in the soils of oil palm plantations
title_short Earthworm populations and cast properties in the soils of oil palm plantations
title_full Earthworm populations and cast properties in the soils of oil palm plantations
title_fullStr Earthworm populations and cast properties in the soils of oil palm plantations
title_full_unstemmed Earthworm populations and cast properties in the soils of oil palm plantations
title_sort earthworm populations and cast properties in the soils of oil palm plantations
publisher Malaysian Society of Soil Science
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/14176/1/Earthworm%20populations%20and%20cast%20properties%20in%20the%20soils%20of%20oil%20palm%20plantations.pdf
http://psasir.upm.edu.my/id/eprint/14176/
http://www.msss.com.my/mjss/v13.php
_version_ 1643825554285133824
score 13.211869

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