Edyson Indawan
Fakultas Pertanian Universitas Tribhuwana Tunggadewi, Jalan Tlagawarna Tlogomas Malang 65144

Published : 8 Documents
Articles

Found 8 Documents
Search

PENCEMARAN BTEX DAN LOGAM BERAT PADA HUTAN MANGROVE PESISIR TAMBAK LEKOK Indawan, Edyson
Bumi Lestari Journal of Environment Vol 9, No 1
Publisher : Udayana University

Show Abstract | Original Source | Check in Google Scholar

Abstract

This research was aimed to explore land function changes and contamination levels (BTEX and heavy metals) on the mangrove area. The results of BTEX parameters from soil sample and indentified benzene showed heavy metal contaminations on Plot A, B, C and D were16.30 ppm, 81.30 ppm, 56.90 ppm, and 93.50 ppm respectively, but it was not detected on Plot E. Toluene contaminations was 481 ppm, 824 ppm, 490 ppm, 896 ppm, and 93.50 ppm. It showed that Plot B and D were heavily contaminated. Based on EC values of water, it showed that contamination was heavy on Plot B (4.76 us/cm), Plot C (4.67 us/cm), Plot D (4.64 us/cm) and Plot E (4.66 us/cm). Based on water samples and detected benzene, it indicated an heavy contamination on Plot A (24.30 ppm), Plot B (8.13 ppm), Plot C (20.20 ppm), Plot D (8.13 ppm), Plot E (8.13 ppm), while toluene (460 ppm, 522 ppm, 509 ppm, 319 ppm, 522 ppm) contaminated slightly. Ethylbenzene and Xilene were not detected by gas chromatography. EC value of soil showed that intensive contamination occurred on Plot E (4.81 us/cm). It showed that intensive contamination took place on soil mainly by Pb contamination on Plot C, Plot D, and Plot E (5.98 mg/kg, 7.24 mg/kg, and 6.43 mg/kg). Meanwhile, Plot A and B were slightly contaminated only. The same levels occurred on Cu for all plots, except Plot A (6.22 mg/kg). Zn and Cr did not contaminate, while Ag and Cd were not detected. Water medium was not contaminated by Pb, Cd, Cr, and Zn. Furthermore, Ag and Cu were not detected.
MANAGEMENT OF WATER POLLLUTED WITH BIOREMEDIATION Indawan, Edyson; Ahmadi, KGS.
Bumi Lestari Journal of Environment Vol 5, No 1
Publisher : Udayana University

Show Abstract | Original Source | Check in Google Scholar

Abstract

The implication of those many human activities which longger progressively hencewill polluted. Tendency of damage of water effect of contaminantion more resulted fromapplied development practice not yet as according to methode and principle sustainabledevelopment.Bioremediation of technology at polluted water environment is aimed to destroy toxicand dangerous chemical compounds from disposal waste.
Sweet potato response to biochar application on sub-optimal dry land Indawan, Edyson; Lestari, Sri Umi; Thiasari, Nurita
Journal of Degraded and Mining Lands Management Vol 5, No 2 (2018)
Publisher : University of Brawjiaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (303.575 KB)

Abstract

This trial was aimed to evaluate the performance of sweet potato cultivars on biochar application. The treatments were carried out using a Split-plot Design with three replications. The cultivars were placed on main plots and biochar doses were on sub-plots. The thirteen cultivars consisted of seven varieties and six accessions from Tribhuwana Tunggadewi University and Brawijaya University collections. The applied biochar doses were B0 (0 t/ha) and B1 (5 t/ha). The experimental unit measuring of 5 m x 0.6 m consisted of single row and planted with a spacing of 25 cm in row or 20 cuttings/row. The storage root weight, % dry matter, storage root dry weight, dry weight of biomass, harvest index and yield estimation were determined. The results showed that the sweet potato cultivars gave a significant response to the biochar application on fresh storage root weight, storage root dry weight, biomass dry weight, harvest index and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield ranged from 8 to 21 t/ha without biochar and from 10 to 23 t/ha with 5 t biochar /ha, except for Beta 1 and Boko. The use of 5 t biochar /ha increased storage root yields that ranged from 8 to 45%.
Quality assessment of mangrove growing environment in Pasuruan of East Java Indawan, Edyson; Hapsari, Ricky Indri; Ahmadi, Kgs; Khaerudin, Dian Noorvy
Journal of Degraded and Mining Lands Management Vol 4, No 3 (2017)
Publisher : University of Brawjiaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (106.228 KB)

Abstract

The occurrence of pollution in mangrove land is due to changes in physical, chemical and biological properties of water because of the increasing human activities that produce problems due to residential and industrial wastes and other related activities, or due to seawater tide. The existence and presence of residential and industrial wastes in soil sediments can disturb the environment that in turn will threaten mangroves growth. This study was aimed to reveal the presence of heavy metals in sediment shown by environmental changes of water polluted by residential and industrial wastes. The study was conducted in field plots located at five watershed areas of Andil, Porangan, Kacar, Gombal and Krondo in Tambak Lekok Village of Pasuruan District, East Java. Field exploration and observation was started from waterfront and riverside vegetations. The exploration was made 300 m toward inland, perpendicular to the edge of the waters. The sediment samples of mangrove stands were collected at three points for each plot. The thickness of the collected sediment samples was ± 10 cm from the surface. Sediment samples were analyzed for heavy metals (Pb, Cr, Zn and Cu) and texture. The results showed that the Pb severely polluted the Gombal watershed with a concentration of 7.24mg/kg. The lowest Pb concentration of 7.24 mg/kg was observed for Andil watershed. Except for Andil watershed, Cu heavily polluted all the watersheds studied
RESPON BOKASHI KOTORAN SAPI DAN KOTORAN KAMBING TERHADAP PERTUMBUHAN TANAMAN CABAI RAWIT (Capsicum frutenscens L.) Malo, Yulita; Indawan, Edyson; Astutik, Astutik
Fakultas Pertanian Vol 7, No 2 (2019)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Original Source | Check in Google Scholar

Abstract

The aim of the study was to study the types of bocashi cow manure and goat manure and dosage on the interaction of the two combinations combined with the growth of cayenne pepper. The research method using factorial group experimental design consists of two factors. The first factor is the type of bokashi namely A1 Sapi A2 and the second factor is bocashi which consists of the level of empathy: B1 250 g / polybag, B2: 500 g / polybag, B3: 750 g / polybag, B3: 750 g / polybag, B4 : 1000 g / polybag. There was interaction between bocashi type and dose to the parameters of the amount of flower at the age of 9 weeks after planting. Separately bokashi extraordinary goat droppings on the number of leaves, number of branches, dry weight of plants. The best results and yield of chili plants are obtained from fertilizing bokashi 750-1000 g / polybag. Tujuan penelitian adalah untuk mengetahui jenis bokashi kotoran Sapi dan kotoran kambing dan dosis terhadap terhadap interaksi kedua perlakuan yang dikombinasikan terhadap pertumbuhan cabai rawit. Metode penelitian menggunakan rancangan acak kelompok Faktorial terdiri dari dua faktor. Faktor pertama adalah jenis bokashi yaitu A1 Kotoran Sapid an A2 kotoran Kambing dan faktor kedua adalah dosis bokashi yang terdiri dari empat level: B1 250 g/polybag, B2 : 500 g/polybag, B3 : 750 g/polybag, B4 : 1000 g/polybag. Terdapat interaksi jenis bokashi dan dosis terhadap parameter jumlah bunga pada umur 9 minggu setelah tanam. Secara terpisah bokashi kotoran Kambing berpengaruh nyata terhadap jumlah daun, jumlah cabang, berat kering tanaman. Pertumbuhan dan hasil tanaman cabai yang tebaik diperoleh pada pemupukan bokashi 750 – 1000 g/polybag.
Komposisi Mangrove pada Lahan Tercemar BTEX dan Logam Berat Indawan, Edyson; Ahmadi, Kgs.; Novitawati, Retno Ayu Dewi
Jurnal Natur Indonesia Vol 14, No 3 (2012)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Original Source | Check in Google Scholar | Full PDF (120.258 KB)

Abstract

The study was aimed to gasp inventory an expired plant mangrove species characteristic respectively collection specimen land us function BTEX and heavy metal at growth environment. The study held from April through November 2007. Design with two classes, Rank I : survey activities and explored in land for quantity and identification, Rank II : Analysis totality solid matter petroleum level BTEX and heavy metal situ by research in location. The results of mangrove identification (main component, supporting component, and associated mangrove) showed there are 11 families and 25 species. BTEX parameter from soil sample was detected benzene intensive contamination on Andil river (16.30 ppm), Porangan river (81.30 ppm), Gombal river (56.90 ppm), Kacar river (36.90 ppm) but it was not detected on Krondo river. Toluene intensive contamination Porangan river (824 ppm) and Kacar river (896 ppm). BTEX parameter from water sample was detected benzene intensive contamination on Andil river (24.30 ppm), Porangan river (8.13 ppm), Gombal river (20.30 ppm), Kacar river (8.13 ppm), Krondo river (8.13 ppm), and Toluene contaminate slightly. Ethylbenzene and xilene were not detected by gas chromatography. Soil medium showed that contamination mainly Pb on Gombal river (5.98 mg/Kg), Kacar river (7.24 mg/Kg) and Krondo river (6.43 mg/Kg), where are Andil river and Porangan river were only slightly contaminated. The metal occurred on Cu for all, except Andil river (6.22 mg/Kg), whereas Zn and Cr did not contaminate, while Ag and Cd were not detected. Water medium was not contaminated by Pb, Cd, Cr, and Zn, furthermore Ag and Cu were not detected
TANGGAPAN TANAMAN JAGUNG MANIS AKIBAT PEMBERIAN KOMPOS JERAMI DAN HARA Indawan, Edyson
BUANA SAINS Vol 6, No 2 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Original Source | Check in Google Scholar | Full PDF (144.475 KB)

Abstract

This study was aimed to explore of plant affectivity in using its environmental resources and to quantitatively solve problems related to growth of sweet corn. Twelve treatments comprising four levels of rice straw application and three levels of nutrient application was arranged in a randomized block design with three replicates. The results showed that a combination of 10 t rice straw/ha with 400 kg Urea, 35 kg TSP, and 250 kg KCl /ha produced the highest stem dry weight. There was no interaction between leaf dry weight, root dry weight and cop dry weight of the plant
Pemberian Biochar Jengkok Tembakau Untuk Meningkatkan Hasil Ubijalar Pada Lahan Kering Sub-Optimal Indawan, Edyson; Lestari, Sri Umi; Thiasari, Nurita
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (641.227 KB)

Abstract

Indawan et al, 2019. Increasing Sweet Potato Yield on Biochar Amendment Application on Sub-Optimal Dry Land. JLSO 8(1):47-56. Biochar is a soil amendment that can improve soil fertility, increase crop yield and can reduce contamination. This study aim to evaluate the sweet potato response to biochar application from tobacco industry waste. The combination of cultivar and dose of biochar implemented using a Split Plot Experiment Design with three replications. The cultivars placed 0n main plots and biochar doses on sub-plots. The thirteen cultivars covering 7 varieties (Kuningan Putih, Beta 1, Beta 2, Kuningan Merah, Sari, Boko, and Jago) plus six accession from Unitri and Brawijaya University collections (BIS OP-61-OP-22 , 73-6 / 2, 73 OP-8, BIS OP-61, 73 OP-5, and BIS OP-61-♀-29). The biochar dose used was B0 (0 t / ha) and B1 (5 t / ha). The experimental unit is measuring 5 m x 0.6 m, consisting of single row and planted with a spacing of 25 cm in row or 20 cuttings/row). The storage root numbers, storage root weight, % dry matter, Harvest Index (HI) and yields estimation are ditermined. The results showed that sweet potato cultivars gave a significant response to biochar application on fresh storage root weight, dry storage root weight, biomass dry weight, HI and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield range of 8 - 21 t / ha without biochar and 10 - 23 t / ha with biochar 5 t / ha, except for Beta 1 and Boko. The use of biochar of 5 t / ha can increase storage root yields ranging from 8 - 45%.