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All Journal Journal of Tropical Soils Jurnal Agro AGROLOGIA : Jurnal Ilmu Budidaya Tanaman JURNAL BUDIDAYA PERTANIAN MAKILA: Jurnal Penelitian Kehutanan Tropical Small Island Agriculture Management Jurnal El-Thawalib Jurnal Agrosilvopasture-Tech Education & Learning Jurnal Pertanian Kepulauan Agroland: Jurnal Ilmu-ilmu Pertanian Jurnal El-Thawalib
Siregar, Adelina
Fakultas Pertanian Universitas Pattimura
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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Aplikasi agens hayati dari perakaran bamboo dan rumput gajah untuk mengendalikan penyakit hawar daun dan peningkatan hasil tanaman pada sawi (Brassica rapa) A. Marthin Kalay; Adelina Siregar; Alexander Sesa; Abraham Talahaturuson
Jurnal Agro Vol 7, No 1 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/6548

Abstract

Penyakit Damping Off dan hawar daun merupakan penyakit yang sering ditemukan pada tanaman sawi (Brassica rapa) dan tanaman hortikultura sayuran lainnya. Kedua penyakit ini disebabkan oleh jamur Rizoctonia solani. Penggunaan bahan alam berbasis agens hayati mikroba merupakan solusi penanganan penyakit tanaman yang ramah lingkungan dan berkelanjutan, selain untuk pengendalian penyakit juga berpotensi meningkatkan hasil tanaman. Penelitian ini bertujuan untuk mengetahui efek aplikasi agens hayati dari perakaran bambu dan rumput gajah terhadap serangan penyakit hawar daun dan hasil tanaman sawi. Perlakuan yang dicobakan adalah agens hayati dari ekstrak akar bambu (EAB) dan akar rumput gajah (EARG), dan pupuk hayati konsorsium (PHK) dengan konsentrasi : PHK 1% , EAB 1%, EAB 1,5% , EAB 2%, EARG 1% , EARG 1,5%, EARG 2%, dan tanpa agens hayati sebagai kontrol. Percobaan dirancang menggunakan rancangan acak kelompok dengan tiga ulangan. Hasil penelitian adalah pemberian agens hayati dari EAB, EARG dan PHK dapat mengendalikan penyakit hawar daun, dan meningkatkan tinggi tanaman, bobot segar tanaman dan bobot kering tanaman. Agens hayati dengan konsentrasi terbaik adalah PHK 1%, EAB 2% dan EARG 2%. Hasil penelitian yang terbaik dapat direkomendasikan kepada petani untuk meningkatkan produksi tanaman sawi. ABSTRACT Damping off and leaf blight diseases are often found in mustard (Brassica rapa) and other vegetable horticultural crops. Both diseases are caused by a fungal pathogen Rizoctonia solani. The use of natural materials based on biological agents is a sustainable environmentally friendly solutions, besides controlling crop diseases, it also has the potential to increase crop yields. This study aims to determine the effect of application of biological agents from bamboo roots and elephant grass on leaf blight and mustard. The treatments involved biological agents extracted from bamboo roots (EAB) and elephant grass roots (EARG), and consortium bio-fertilizers (PHK) with concentrations of 1% layoff, EAB 1%, EAB 1.5%, EAB 2%, EARG 1%, EARG 1.5%, EARG 2%, and without biological agents as a control.  The experimental design was a randomized block design with three replications. The results of the study showed that the the application of biological agents from bamboo roots (EAB), elephant grass roots (EARG) and consortium bio-fertilizers (PHK) can control the leaf blight disease, and can increase the plant height, and the fresh and plant dry weight. The best concentration of biological agents is PHK 1%, EAB 2% and EARG 2%. The best results of this study can be recommended to farmers to increase the production of mustard plants. 
Soil Chemistry Character, the N, P, and K Uptake, and the Growth and Yield of Corn (Zea mays L.) Due to the Application of Ela Sago Palm Waste Compost and Liquid Organic Fertilizer in Ultisols Elizabeth Kaya; Adelina Siregar; Diane Matulessy; Masita Hasan; Arsando Akollo
JOURNAL OF TROPICAL SOILS Vol 27, No 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.49-58

Abstract

Application of organic matter (compost Sago Ela palm waste and Liquid Organic fertilizers (LOF)) to the soil could have major benefits, such as to improve the soil physical condition (soil structure, water retention), and soil chemical properties (binding and providing nutrients, increasing CEC). The purpose of this study are (1) to improve the soil chemical properties of Ultisols, and (2) to increase plant uptake of N, P, and K, and the growth and yield of corn (Zea mays L.). The research was conducted in the field, namely in Telaga Kodok Village, Leihitu Sub District, and Central Maluku District. The experiment was designed in a factorial, and arranged in a randomized completed block design (RCBD).  The first factor was the provision of compost Sago Ela palm waste (K) and the second factor was the provision of liquid fertilizer (C). The results showed that the compost combined with LOF could improve pH, Al-exchangeable, Total-N, P-available soil, Uptake-P, Uptake-K, and the dry weight of seed corn. While the treatment of sago Ela palm waste compost and LOF can independently raise the K-available soil, N-uptake, and affect corn’s plant growth (height and trunk diameter). The treatment doses of sago Ela palm waste compost of 60 Mg ha-1 and LOF of 20 mL L-1 solution can increase the exchangeable Al, Total-N, and P-available soil, respectively 0.56 cmol(+)kg-1, 0.21%, and 31.00 mg kg-1; also able to increase the uptake of P, K, and weight dry seed corn respectively 0.21% and 1.26%, and 121.33 g plant-1. The treatment doses of Sago Ela palm waste compost of 60 ton ha-1 and liquid organic fertilizer of 10 mL L-1 solution can increase the soil pH by 5.70.
Use of Endophytic Trichoderma to Control Fruit Rot Phytophthora infestans, Growth and Yield in Tomato Malaky Wattimury; Johana Taribuka; Adelina Siregar
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1298

Abstract

Endophytic Trichoderma is a fungus found in plant tissue and has the potential as a plant biological control agent. The aim of this study was to study endophytic Trichoderma isolated from tomato roots, stems and leaves to control Phytophthora infestans fruit rot and growth and yield of tomato plants. The treatments that were tested were endophytic tricoderma isolated from the roots, stems and leaves of tomato plants and applied with doses of 50, 75, and 100 g per tomato plant, respectively. The experimental design used a completely randomized design with three replications. The observed variables were disease intensity, plant height, number of flowers formed, and number of fruits formed. The results showed that the endophytic Trichoderma used could control the pod rot disease of Phytophthora infestans as well as increase the growth and yield of tomato plants. Giving endophytic Trichodema from roots applied with a dose of 100 g is the best treatment because it can reduce disease intensity by 48.02%, while giving at a dose of 75 g per plant is the best treatment because it can increase plant height by 51.74%, the number of flowers formed amounted to 68.42% and the number of fruit formed was 74.70%.Keywords: Endophytic Tricoderma, Tomato, Phytophthora infestans.
Limiting Factors of Forest Cloves (Syzygium Obtusifolium, L.) Productivity in Latu and Hualoy Villages, Amalatu District, West Seram Regency Fitria S. Kibas; Andrias I. Latupapua; Adelina Siregar
Agrologia Vol 11, No 1 (2022): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v11i1.1541

Abstract

Research on the limiting factors for forest cloves (Syzygium obtusifolium, L.) productivity has been conducted in Latu and Hualoy villages, Amalatu sub-district, West Seram Regency. The results showed that the dominant soil factors that limit the productivity of forest cloves were root growth media condition and erosion hazard. However, there was no appropriate technologies to improve all of limiting factors. Actual and potential land suitability for forest clove was categorized as Marginally Suitable covering an area of 1403.1 Ha (61.2 %)  and Not Suitable covering an area of 787.9 Ha (34.3%) without the settlements and roads area. The productivity of forest cloves is still low, ranging from 2,250 kg – 3,750 kg/ha/year.
Pemanfaatan Kompos Ela Sagu, Sekam Dan Dedak Sebagai Media Perbanyakan Agens Hayati Trichoderma harzianum Rifai. Costanza Uruilal; A. Marthin Kalay; Elizabet Kaya; Adelina Siregar
Agrologia Vol 1, No 1 (2012)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v1i1.295

Abstract

The use of biological agents to prevent the growth of plant diseases is aimed at decreasing the capability of particular pathogen, preventing their growth and spread, reducing the infection and intensity of pathogenic attack to main plants. Trichoderma harzianum is commonly found in almost all types of soil, and is one of fungi that can be used as biological agents to control plant pathogens.  Growth and development of this fungi are mostly influenced by factors such as temperature, light, air, and pH.  It is also dependents on other nutrients such as carbon, nitrogen and plain carbohydrate which are contained in sago waste (ela), bran and rice husk. The objective of this study is to find out the utilization of sago waste, bran and rice husk as media to multiply the biological agents T. harzianum. The result of this study showed that sago waste compost could  be used as a medium to multiply the antagonist T. harzianum; when appropriately mixed with bran and rice husk (1:1:1 v/v), sago waste composts would be an effective media to develop the T. harzianum fungus. This mixture is better compared to sago waste composts, husk, sago waste composts and bran, and sago waste composts and husk. It is doe to the fact that in the media number of spore of T. harzianum (7,08 x 109/mL) increased and colony characteristics was dense..
Peranan Bahan Organik dan Pupuk Majemuk NPK dalam Menentukan Percepatan Pertumbuhan Tanaman Jagung (Zea mays Saccharata L.) pada Tanah Inceptisol (Suatu Kajian Analisis Pertumbuhan Tanaman) Fabians J.D. Hitijahubessy; Adelina Siregar
JURNAL BUDIDAYA PERTANIAN Vol 12 No 1 (2016): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Agricultural management is currently facing the adverse effects of inorganic fertilizers; thus, the use of organic fertilizers should be encouraged, one of which is the use of compost. Organic fertilizers are fertilizers that are mostly or wholly composed of organic materials derived from plants and/or animals through decomposition process. It can be in solid or liquid form used to supply plant nutrients, improve physical, chemical and biological properties of the soil to accelerate the plant growth. On the other hand, the inorganic fertilizer is still used, although only as a basic fertilizer, while the combination of both organic and NPK inorganic fertilizer as a balanced treatment can generate the best growth and development of the plant. The aims of this research were to: 1) determine the best dose of compost and NPK compound fertilizer for vegetative growth of sweet corn; and 2) determine the dose of compost to determine the best plant biomass filling for sweet corn plant growth. This research was conducted in the greenhouse of Faculty of Agriculture Pattimura University, Ambon using two factors in factorial design in Complete Randomized Design, with three replications where the first factor was compost as K (without compost, 10 tons/ha, 20 tons/ha and 30 tons/ha) and the second factor is NPK compound fertilizer as P (without NPK compound fertilizer, 50 kg/ha and 100 kg/ha), so there were 36 experimental units. Against the observed variables of plant height, number of leaves and stem diameters measured every week for an interval of five weeks, the design of Split in Time using PROC GLM SAS 14 was used, while for the variables fresh and dry weight of plant (roots and above ground) PROC GLM SAS 14 was used. If there was a significant effect of the compost and NPK fertilizer treatment on the soil and plant observation variables, it was followed by Duncan multiple range (DMRT) test using PROC GLM SAS 14, Step wise analysis and orthogonal polynomial regression for composting factor and the best compound fertilizer in this experiment using MINITAB 17. The results showed that compost and NPK compound were able to accelerate the growth rate of corn plant, and the best time occurred in the fourth week after planting, where compost with dose 20-30 tons/ha combined with NPK compound 50-100 kg/Ha showed the best results for vegetative growth of corn plant.
Pertumbuhan dan Produksi Tanaman Jagung (Zea mays L.) Akibat Pemberian Kompos Ela Sagu dan Pupuk Organik Cair (POC) pada Tanah Ultisol Elizabeth Kaya; Adelina Siregar; Diane M.Y. Matulessy; Masitta Hasan
JURNAL BUDIDAYA PERTANIAN Vol 12 No 1 (2016): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this study is to determine the growth and yield of maize (Zea mays L) as responses of organic fertilizer sago palm waste compost and liquid organic fertilizer (LOF) on Ultisols. The research was conducted on the field in the village of Telaga Kodok. The treatments were carried out in a factorial experiment using randomized block design in which the sago palm waste compost consisted of 4 dose levels: 0, 30, 45, and 60 tons/Ha and liquid organic fertilizer (LOF) was composed of 3 dose levels: 0, 10, and 20 mL/L solution which is repeated three times, so that there were 36 treatment combinations. The results showed that the application of sago palm waste compost and LOF independently promote plant growth (height and stem diameter) of corn, as well as the production of plant (length, diameter, and weight of cobs) of Corn. While the sago palm waste application together with LOF could improve corn dry seed weight as much as 121.33 g per plant or 5.8 ton/Ha on soil Ultisol.
Status Kesuburan Tanah Berdasarkan Aspek Kimia dan Fisik Tanah di DAS Wai Ela, Negeri Lima, Kabupaten Maluku Tengah, Provinsi Maluku Hetti May Rini Pintu Batu; Silwanus M Talakua; Adelina Siregar; Rafael M Osok
JURNAL BUDIDAYA PERTANIAN Vol 15 No 1 (2019): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2019.15.1.1

Abstract

Soil fertility problems in Wai Ela Negeri Lima are caused by 1) natural factors such as geology, soil, topography, and land uses; 2) land management system, such as shifting cultivation and deforestation; and (3) land degradation due to a natural disaster such as the fast flood in Wai Ela watershed. The objectives of the study were 1) to study soil chemical and physical characteristics of Wai Ela watershed; 2) to determine the soil fertility status of Wai Ela watershed; and 3) to provide some recommendations to improve the soil fertility. Soil properties used in determining soil fertility status included CEC, BS, C-organic, available P2O5, N-total, pH, soil depth, soil textures, and soil permeability rates. The soil fertility status was determined by using PPT’s criteria. Data preparation and analysis were conducted by using Geographic Information System. The study results showed that the soil fertility status of Wai Ela watershed ranged from the low-class 217.74ha (14.50%) to medium class 899.56 ha (60.21%) and high-class 303.35ha (20.31%). The recommended soil fertility status improvements in Wai Ela include balanced-fertilization management, increasing soil organic matter by applying manure and compost at soil tillage stage, neutralizing the soil pH and applying irrigation water management. Keywords: chemical and physical aspects, Negeri Lima, soil fertility, Wai Ela Watershed ABSTRAK Masalah kesuburan tanah di DAS Wai Ela Negeri Lima disebabkan oleh: 1) faktor alami yaitu geologi, jenis tanah, topografi dan penggunaan lahan; 2) pola pemanfaatan lahan, yaitu perladangan berpindah dan penebangan hutan; dan 3) degradasi lahan akibat bencana alam berupa banjir bandang di danau Wai Ela. Penelitian ini bertujuan untuk: 1) Mengkaji data kimia dan fisika tanah di DAS Wai Ela; 2) Menetapkan status kesuburan tanah di DAS Wai Ela; dan 3) Menentukan arahan perbaikan kesuburan. Sifat kimia tanah yang berpengaruh terhadap penetapan status kesuburan tanah adalah KTK, KB, C-organik, P2O5 tersedia, N total dan pH tanah. Sifat fisika tanah seperti kedalaman tanah, tekstur dan laju permeabilitas tanah. Penentuan status kesuburan tanah ditetapkan berdasarkan kriteria penentuan tingkat kesuburan tanah PPT (1983) dan kriteria kombinasi kesuburan fisika tanah (Sitorus, 1985). Tahap persiapan sampai pengolahan data status kesuburan tanah adalah berbasis SIG. Hasil penelitian menunjukkan bahwa status kesuburan tanah total pada lokasi penelitian yaitu kelas rendah 216,74 ha (14,50%), kelas sedang 899,56 ha (60,21%) sampai kelas tinggi 303,35 ha (20,31%). Arahan perbaikan kesuburan tanah di DAS Wai Ela adalah manajemen pemupukan berimbang, penambahan bahan organik (pupuk kandang, pupuk hijau) pada tahapan pengolahan tanah, manajemen pH tanah yang sesuai dan pengaturan air irigasi yang tepat. Kata kunci: aspek kimia dan fisik, DAS Wai Ela, kesuburan tanah, Negeri Lima
Efisiensi Pemberian Air dan Kompos Terhadap Mineralisasi NPK Pada Tanah Regosol Venus Nikiyuluw; Rudy Soplanit; Adelina Siregar
JURNAL BUDIDAYA PERTANIAN Vol 14 No 2 (2018): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2018.14.2.105

Abstract

Good soil contains sufficient nutrient content for plants. Some of the most important nutrients in the soil include nitrogen, phosphorus, and potassium. However, regosol soil cannot provide enough nutrients and water. The objectives of this study include: 1) comparing the volume of water given with a frequency of 1, 2 or 3 days for NPK nutrient availability on regosol soils; 2) determining the amount of NPK nutrients available after 30 days of incubation by giving different compost doses; 3) determining the interaction between the frequency of water supply and decomposition of organic matter in providing NPK nutrients to regosol soils. This study used a completely randomized design method with a 3 × 3 factorial pattern with 3 replications, therefore there were 27 experimental units. Data analysis of the observed variables was done using variance analysis with SAS program ver 9.0 and if there was a real treatment effect followed by a different test between treatments using BNT (5%). Compost applied to the soil was done, this was indicated by a low C / N value of 14.3 and in accordance with the SNI value standards of 10-20. The results of the study showed that the application of water and organic matter independently has a significant effect on the N content, P, and K in the ground. Whereas, the interaction between the two treatments of water frequency application and organic matter had no significant effect on the levels of N, P, and K in the soil. The conclusion of this study, with the application of water once every 3 days and the treatment of 300g/pot organic matter (B2) was best to provide the highest Ntotal value (0.53%), P available (17, 50 mg/kg), and Kexch (2.03 me/100g). Keywords: compost, frequency of water supply, regosol ABSTRAK Tanah yang baik memiliki kandungan hara yang cukup bagi tanaman. Beberapa unsur hara yang terpenting dalam tanah antara lain ialah nitrogen, fosfor dan kalium. Tetapi tanah regosol tidak dapat menyediakan unsur hara dan air dengan cukup. Tujuan dari penelitian ini antara lain: 1) membandingkan volume air yang diberikan dengan frekwensi 1, 2 atau 3 hari sekali untuk ketersediaan hara NPK pada tanah regosol; 2) menetapkan banyaknya unsur hara NPK tersedia setelah 30 hari inkubasi dengan pemberian dosis kompos yang berbeda; dan 3) mengetahui interaksi antara frekwensi pemberian air dan dekomposisi bahan organik dalam menyediakan hara NPK pada tanah regosol. Penelitian ini menggunakan metode Rancangan Acak Lengkap dengan pola faktorial 3 × 3 dengan 3 ulangan sehingga terdapat 27 satuan percobaan. Analisis data dari variabel yang diamati menggunakan analisis ragam dengan program SAS ver 9.0 dan jika terdapat pengaruh perlakuan yang nyata dilanjutkan dengan uji beda antar perlakuan menggunakan BNT (5%). Kompos yang diaplikasi ke tanah sudah matang, hal ini ditandai dengan nilai C/N yang rendah yaitu 14,3 dan sesuai dengan standar nilai SNI yaitu 10-20. Hasil penelitian menunjukkan bahwa pemberian air dan bahan organik secara mandiri memberikan pengaruh nyata terhadap kadar N, P, dan K dalam tanah. Sedangkan, interaksi antara kedua perlakuan air dan bahan organik tidak berpengaruh nyata terhadap kadar N, P, dan K dalam tanah. Kesimpulan dari penelitian ini, dengan pemberian air 3 hari sekali dan perlakuan bahan organik 300g/pot (B2) adalah dosis yang lebih baik untuk mendapat nilai Ntotal, Ptersedia dan Kdd tertinggi yaitu N total (0,53%), P tersedia (17,50 mg/kg), dan K dd (2,03 me/100g). Kata kunci: frekwensi pemberian air, kompos, regosol
Analisis Bahan Pencemar Dominan Di Muara Way Tomu Dan Muara Way Lela Wilayah Pesisir Kota Ambon Yosias Marthen Pesulima; Pieter Kunu; Adelina Siregar
JURNAL BUDIDAYA PERTANIAN Vol 14 No 2 (2018): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2018.14.2.55

Abstract

The aims of this research are to find the dominant pollutants in estuarine of Way Tomu and Way Lela, determine the water quality in the estuary Way Tomu and Way Lela, and comparing the effects of the density of settlement on water quality of estuary Way Tomu and Way Lela. The research was conducted in October until November 2015. The method used was survey method with variables the physical parameters (Total Dissolved Solid, Total Suspended Solid, temperature), chemicals parameter (detergents, nitrate, nitrite, pH, BOD, COD, DO, amonia, phosphate, iron, oil and fat, manganese, coopper) and biology parameter (E. coli) class II. The result showed that the dominant chemicals parameter and affect water quality in the Way Tomu is Detergent (746 mg/L), while for the Way Lela estuary are detergent (835 mg/L), phosphate (0,4631 mg/L), and dissolved oxygen (3,2 mg/L), and biological parameters i.e., E. coli. These values have exceeded the value of the quality standard of the water quality is appropriate Government Regulation Number 82 the Year 2001 about Water Quality Management and Control of Water Pollution Classes II. It is thought to be due to the behavior of the people who live the area of the riverbanks of Way Lela and Way Tomu that their household trash into the river. For that is a need for the attention of the Government and local communities to improve the quality of the river water in the Way Tomu and Way Lela with improving the environment-friendly behavior. Keywords: pollutants, pollution estuary, way Tomu, way Lela ABSTRAK Tujuan dari penelitian ini adalah untuk menemukan polutan yang dominan di muara Way Tomu dan Way Lela; menentukan kualitas air di muara Way Tomu dan Way Lela; serta membandingkan efek dari kepadatan pemukiman terhadap kualitas air muara Way Tomu dan Way Lela. Penelitian ini telah dilakukan pada bulan Oktober sampai November 2015. Metode yang digunakan adalah metode survei dengan variabel penelitian berupa parameter fisik (Total Dissolved Solid, Total Suspended Solid, suhu), parameter kimia (deterjen, nitrat, nitrit, pH, BOD, COD, DO, amonia, fosfat, besi, minyak, dan lemak, mangan, tembaga) dan parameter biologi (E. coli) kelas II. Hasil penelitian menunjukan bahwa parameter kimia yang dominan dan mempengaruhi kualitas air di muara Way Tomu adalah Deterjen (746 mg/L) sedangkan untuk muara Way Lela adalah Deterjen (835 mg/L), Fosfat (0,4631 mg/L), dan Oksigen terlarut (3,2 mg/L), serta parameter biologi yaitu E. coli. Nilai-nilai ini telah melampaui nilai baku mutu kualitas air Sesuai Peraturan Pemerintah Nomor 82 Tahun 2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air Kelas II. Hal ini diduga sebagai akibat perilaku masyarakat yang tinggal di daerah bantaran Way Tomu dan Way Lela yang membuang limbah rumah tangga ke sungai. Untuk itu perlu adanya perhatian pemerintah dan masyarakat setempat untuk memperbaiki kualitas air sungai di Way Tomu dan Way Lela dengan meningkatkan perilaku ramah lingkungan. Kata Kunci: bahan pencemar, pencemaran muara sungai, way Tomu, way Lela
Co-Authors A.M. Kalay Abraham Talahaturuson Abraham Talahaturuson, Abraham Akollo, Arsando Alexander Sesa Alexander Sesa Andrias I. Latupapua Arsando Akollo Costanza Uruilal Diane M.Y. Matulessy Diane Matulessy Elizabet Kaya Elizabeth Kaya Elizabeth Kaya Fabians J.D. Hitijahubessy Fitria S. Kibas Hamid Hamid Hasan, Masita Hetti May Rini Pintu Batu Johana Taribuka Junaidi Junaidi Kaya, Elizabeth Malaky Wattimury Marasabessy, Syamsudin Masita Hasan Masitta Hasan Matulessy, Diane Nasution, Muhammad Arsad Ohoirat, Jufri Mulyadi Osok, Rafael M Osok, Rafael Marthinus Pieter J Kunu Risamasu, Robby G Rudy Soplanit Sainul, Ahmad Sibualamo, M. Gentha Yudha Sandy Silwanus M Talakua Talakua, Silwanus Matheus Ufie, Conradus Venus Nikiyuluw Wamnebo, Siti I R Wardis Girsang Yosias Marthen Pesulima