Kimberly Anak Ador (2017) Effects of commercial fertilizers on soil invertebrates diversity and its relationship with environmental variables in oil palm plantation. Masters thesis, Universiti Malaysia Sabah.
![[img]](https://eprints.ums.edu.my/style/images/fileicons/text.png) |
Text
24 PAGES.pdf Download (1MB) |
|
Text
FULLTEXT.pdf Restricted to Registered users only Download (7MB) |
Abstract
ABSTRACT The main objective of this study was to investigate the diversity and faunal composition of soil invertebrates in oil palm plantation. It was conducted from May 2013 until June 2014 at Sekong Estate, Genting Plantation. The relationship between soil invertebrates, ecological characteristics and types of fertilizer applied in the soil was also examined. The soil samples were collected using soil auger with 30 cm depth. All soil invertebrates were extracted from soil samples using BerleseTullgren funnel with 40 W light bulb. In total, ten treatments with four replicates of chemical fertilizer, organic fertilizer and empty fruit bunch, were used in this study. Sampling was conducted ten times, with the total of 400 samples (10 treatments and four replicates per sampling) were collected. A total of 671 individuals from 15 species (four species of Acari, four species of Coleoptera, and one species of Diptera, Thysanoptera, Haplotaxida and Psocoptera respectively) were recorded during the study. Highest diversity (Shannon's index; H' = 1.87), evenness (Simpson's index; Ds = 8.3) and richness (Margalef's index; DM = 2.29) were found in Treatment 5. There were significance difference in soil invertebrates alpha diversity among the ten treatments (Tl-TlO; P<0.05); species diversity (ShannonWiener index; F9,39 = 5.126, P<0.001), species evenness (Simpson index; F9,39 = 3.603, P<0.010) and species richness (Margalef index; F9,39 = 4.783, P<0.001). There were no significant differences in soil invertebrates beta diversity among the ten treatments (Whittaker index; Mantel test; Z=73.19, P<0.77 and Morisita-Horn index; Mantel test; Z = 47.39, P = 0.39). There were significant differences in species sensitivity index among families ( one way AN OVA; F11,14 = 14.27, p = 0.03) and the importance of species among families of soil invertebrates ( one way ANOVA; F11,14 = 0.00, p = 0.00). There were significant relationships between PCA factor score 4 and alpha diversity (one way ANOVA; F9,39 = 27.87, P<0.00) indicating that number of vegetation and light penetration on oil palm plantation floor have an effect on diversity of soil invertebrates species. Relationship between species alpha diversity and seasonal variation showed no significant correlation. T5 (LSM+EFB) was recommended to be applied as the fertilizer in the oil palm plantation. T5 promotes highest species diversity, richness and evenness of soil invertebrates in this study site. The abundance of soil invertebrates proved that it can improve the physical properties of soil and the minimal inputs of chemical fertilizer helps to increase the abundance of soil invertebrates.
| Item Type: | Thesis (Masters) |
|---|---|
| Keyword: | Ooil palm plantation soil invertebrate, Environmental variables, Diversity |
| Subjects: | S Agriculture > SB Plant culture > SB1-1110 Plant culture > SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants |
| Department: | FACULTY > Faculty of Sustainable Agriculture |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 11 Jun 2025 15:27 |
| Last Modified: | 11 Jun 2025 15:27 |
| URI: | https://eprints.ums.edu.my/id/eprint/44101 |
Actions (login required)
 |
View Item |