Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Science and Technology Indonesia

The Diversity of the dragonfly (Odonata) as an indication of water quality Muhammad Agus; Yulia Pujiastuti; Yuanita Windusari
Science and Technology Indonesia Vol. 2 No. 4 (2017): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.004 KB) | DOI: 10.26554/sti.2017.2.4.80-84

Abstract

Information on the diversity of dragonfly in the University area is still not much. Reduced areas that support the growth and development of dragonfly species are thought to have an impact on the decline of the population and the diversity of these species. The purpose of this study identified and analyzed the diversity of dragonfly species. Dragonfly are collected through direct capture and using sticky traps, then visual observations are made for identification. Environmental conditions in the area of Sriwijaya University Campus is still good, with the visibility of environmental parameters in the form of DO, BOD and COD still meet environmental quality standards so that dragonflies are still able to lay eggs to keep their generation. Sriwijaya University campus found 19 species of Odonata belonging to 5 families and 2 sub-ordo, with the value of species diversity index of 2.05 and moderate
Variety of Pests and Arthropods in Organic and Non-organic Rice Cultivation in South Sumatera Ardi Asroh; Abu Umayah; Yulia Pujiastuti
Science and Technology Indonesia Vol. 3 No. 3 (2018): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.17 KB) | DOI: 10.26554/sti.2018.3.3.134-140

Abstract

The system of cropping pattern and the use of fertilizer will be different to the diversity of pests and arthropods in paddy fields. The objective of this research is to determine the pest and arthropod pests in non-organic and organic paddy in paddy fields. The applied method is the plant observations that attacked pests by using 1 ha of organic paddy field and 1 ha of non-organic paddy field. The catching arthropods is the way to observed the insects by using insect nets, trap holes, yellow trays and light traps and analyzing the result by using the Shannon-Wiener equation. This research was undertaken on April 2016 to August 2016 in Sumber Suko village, BK. VIII, Gumawang district, regency of Ogan Komering Ulu east, South Sumatera. The result of this research pointed out that the variety of pest paddy crops is relatively diverse both in non-organic and organic paddy. The abundance and variety of arthropods in organic agriculture is higher at 1.39 than non-organic agriculture at 0.87 so it can affect the extent of pest attacks on organic paddy. The ecosystem of organic paddy. The ecosystems of organic paddy is more complex in the diversity of arthropods and the abundance of microorganisms than non-organic paddy systems.