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Efek Aplikasi Pupuk Hayati terhadap Populasi Mikroba dan Ketersediaan Unsur Hara Makro pada Tanah Entisol A. Marthin Kalay; Alexander Sesa; Adelina Siregar; Abraham Talahaturuson
Agrologia Vol 8, No 2 (2019): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v8i2.1011

Penggunaan mikroba sebagai pupuk hayati untuk meningkatkan produktivitas tanaman merupakan tindakan budidaya yang efisien, ramah lingkungan dan berkelanjutan. Penelitian ini bertujuan untuk pupuk hayati konsorsium yang berasal dari akar bambu (PHK-AB), akar rumput gajah (PHK-ARG) dan pupuk hayati konsorsium Bion Up (PHK-Bion Up) dengan konsentrasi berbeda terhadap populasi total jamur dan bakteri; dan ketersediaan unsur hara makro pada tanah entisol setelah tanaman sawi. Perlakuan yang dicobakan adalah tanpa perlakuan (kontrol); aplikasi PHK-Bion UP, PHK-AB dan PHK-ARG masing-masing dengan dengan konsentrasi 1%, 1,5%, dan 2%. Hasil penelitian ditemukan bahwa pemberian pupuk hayati konsorsium Bion UP, pupuk hayati asal akar bambu dan pupuk hayati konsorsium asal akar rumput gajah dapat : (1) menurunkan populasi total jamur tetapi meningkatkan populasi total bakteri; (2) pH dan kandungan N-total tanah tidak mengalami perubahan; (3) kandungan P2O5 dan K2O tersedia tanah mengalami peningkatan. Pnelitian ini menjelaskan bahwa perbedaan konsentrasi antara pupuk hayati tidak memberikan pengaruh terhadap populasi total jamur dan bakteri, pH, kandungan N-total, dan kandungan P2O5 dan K2O tersedia tanah.Kata kunci: akar bambo, akar rumput gajah, biokontrol, pupuk hayati.

Status Hara Nitrogen, Fosfor, dan Kalium pada Lahan Sawah di Desa Savana Jaya Kecamatan Waeapo Kabupaten Buru Wamnebo, Siti I R; Kaya, Elizabeth; Siregar, Adelina
Jurnal Agrosilvopasture-Tech Vol 2 No 2 (2023): Jurnal Agrosilvopasture-Tech
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/j.agrosilvopasture-tech.2023.2.2.531

is research aims to study nutrients status of N, P, and K in Savana Jaya Village, District of Waeapo, Buru Regency. This research was descriptive and using survey method in the field. Soil samples were composited taken from 5 subsites with 25 m distance from sampling center point. Respondents were selected by using a purposive sampling method, and production data was collected by interviewing farmers. The results showed that the total N status in the Savana Jaya village was low (0,10-0,12%) to very low (0,09%), total P status was moderate (23-38 mg/100 g) to very high (68 mg/100 g), and total K status was low (10-13 mg/100 g) to moderate (30 mg/100 g). The proposed balanced-fertilizer management to support rice fields in the study area is site-specific nutrient management (PHSP) using NPK compound fertilizers combined with urea, Ponsta and Pelangi fertilizers based on nutrients and soil fertility status in the study area, including adding lime to increase soil pH, adding petrorganic organic matter to increase soil C-Organic and soil CEC.

The Correlation Between Reading and the Ability of Students in Expository Writing Siregar, Adelina; Junaidi
Education & Learning Vol. 2 No. 2 (2022)
Publisher : Medan Resource Center

Reading is one of skills in English which can get and take the infromation from printed text. Based on preliminary reasearch at SMP Negeri 1 PantaiLabu it was found that the students’ reading score was still low. The objective of this research was to know there was apositive correlation between the students’ reading and the ability at the first semesterof the seven grade of SMP Negeri 1 PantaiLabuin the academic year of 2019/2020. In this research, methodology of the research is a correlation research. In the taking the sample of the research was gained through simple random sampling. The population of the research was taken from students of the seven grade of SMP Neger 1 PantaiLabu The researcher took 40 students from 100 population. In collecting the data, the researcher used question and answer method to measure students’ reading and the ability. Thetry out of question and answer was done to find out the validity and reliability. Then a try out reading ability test was also done to find out the validity and reliability. After the data of students’ reading ability were collected, the data were statistically computed, to find out the correlation between students’ reading and the ability. From the data analysis, the result of applying the distribution shows that coefficient correlation is possitive correlation between students’ reading and the ability of students in expository writing at the first semester of the seven grade of SMP Negeri 1 PantaiLabuin academic year of 2019/2020. From this research, it is suggesed that students have good a reading ability.

ANALISIS DEBIT RENCANA UNTUK PERENCANAAN BANGUNAN PENGENDALI BANJIR DI DAS WAI RUATA KABUPATEN MALUKU TENGAH Marasabessy, Syamsudin; Talakua, Silwanus Matheus; Siregar, Adelina; Osok, Rafael Marthinus
MAKILA Vol 18 No 2 (2024): Makila: Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v18i2.14006

The high rainfall, rapid urbanization, and the presence of impermeable surfaces have drastically increased surface runoff, overwhelming river systems with high water volumes. Changes in land use and rapid population growth further escalate flood risks. Analyzing planned discharge rates and flood control building planning becomes urgent to mitigate losses and risks caused by floods in the Wai Ruata watershed. Calculations indicate that for the Q100 Log Normal (2475.17 m3/s, the channel height is 2.50302 m, closely approximating public information (2.5 m), with a difference of 0.00302 m or 0.302 cm. This suggests that the calculated maximum flood water level based on planned discharge analysis using the rational method for Log Normal probability of 2.503 m is reasonably accurate. It can serve as a reference for flood control building design heights, potentially lasting around 100 years in the Wai Ruata watershed. Planned flood discharges in the Wai Ruata watershed are as follows: for a 2-year return period, 505.80 m3/s (Gumbel), 449.27 m3/s (Log Normal), 462.56 m3/s (Log-Pearson Type III); for a 50-year return period, 1868.80 m3/s (Gumbel), 2016.26 m3/s (Log-Normal), and 1837.18 m3/s (Log-Pearson); and for a 100-year return period, 2137.98 m3/s (Gumbel), 2475.17 m3/s (Log-Normal), 2166.93 m3/s (Log-Pearson). Gumbel planned flood discharge data can be used for a 25-year lifespan of water structures, whereas for a 100-year lifespan, Log-Normal planned flood discharge is more suitable.

Kesesuaian Lahan untuk Kacang Tanah (Arachis hypogaea L.) pada Zona Agroekologi-II.5 Kawasan Desa Ohoinol Kei Kecil Timur, Kabupaten Maluku Tenggara Sibualamo, M. Gentha Yudha Sandy; Risamasu, Robby G; Ufie, Conradus; Siregar, Adelina
JURNAL PERTANIAN KEPULAUAN Vol 9 No 1 (2025): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jpk.2025.9.1.17

This study aims to inventory land resources and management practices of groundnut smallholder farms in the Ohoinol agricultural area. assess land suitability for groundnut in ZAE II.5. to create a land suitability map for groundnut based on predictions of relative production potential. The method used was survey method, analytical approach, free survey observation distance by conducting identification (boring) and making complete soil profiles and current land use in the sample area determined in 20 land units. The observation results found three types of soil, namely Rensina (Calsiudols), Litosol (Udorthents), and Cambisol (Eustrudepts), which were carried out on community gardens. Groundnut planting activities take place in the eastern season (summer) twice and the western season (rainy season) once. The length of the growth period (LGP) is about 240 days, compared to the peanut growth cycle of 90-140 days. the LGP has no impact on the peanut growth age of 90-140 (average 115 days) and a decrease in production; in other words, the LGP is optimal, namely 80-100% of the subsistence level production achievement of 1,305 Kg dry beans/ha (VS Class = S1). Assessment of groundnut suitability (rooting depth ± 30 cm) based on soil conditions in land units RL015 and RL215 (42 ha in total) is mostly very suitable and has no effect on reducing subsistence level production

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 Kaya, Elizabeth; Siregar, Adelina; Matulessy, Diane; Hasan, Masita; Akollo, Arsando
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

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).Â 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 cornâ€™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.

Hubungan Implementasi Inovasi Teknologi Pengendalian Organisme Pengganggu Tanaman (OPT) Ramah Lingkungan Dengan Respons Petani di Kecamatan Amahai, Maluku Tengah Ohoirat, Jufri Mulyadi; Kaya, Elizabeth; Siregar, Adelina
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 32 No 2 (2025): Agustus
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agrolandnasional.v32i2.2649

Serangan Organisme Pengganggu Tanaman (OPT) menyebabkan kerugian produksi secara global sebesar 20–40%, sehingga mendorong pergeseran dari penggunaan pestisida kimia menuju strategi pengendalian yang lebih berkelanjutan. Penelitian ini bertujuan untuk menganalisis hubungan antara implementasi teknologi pengendalian OPT berbasis ramah lingkungan dengan respons petani di Kecamatan Amahai, Kabupaten Maluku Tengah. Metode yang digunakan adalah sensus terhadap 75 petani, dengan pendekatan analisis deskriptif kuantitatif dan uji korelasi Rank Spearman. Hasil menunjukkan bahwa 61% petani memiliki pengetahuan yang baik, 87% menunjukkan sikap positif terhadap penggunaan bahan nabati, dan 90% telah menerapkan pengendalian berbasis bahan alami. Respons petani terhadap teknologi ini sangat tinggi, dengan 96% menyatakan efektivitasnya, 95% menilai kemudahan penggunaan, 92% mengakui peningkatan produksi, dan 89% merasakan peningkatan pendapatan. Uji korelasi Spearman menunjukkan hubungan positif yang signifikan antara implementasi teknologi dan respons petani (r = 0,702; p < 0,05), yang mencerminkan potensi besar untuk pengembangan sistem pertanian berkelanjutan di wilayah tersebut.

Penghapusan Pembantu Pegawai Pencatat Nikah (P3N) Terhadap Pelayanan Pernikahan Siregar, Adelina; Nasution, Muhammad Arsad; Sainul, Ahmad
Jurnal El-Thawalib Vol 5, No 1 (2024)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/el-thawalib.v5i1.10858

This study examines the impact of removing P3N on marriage services at the Padang Sidempuan city Office of Religious Affairs after the fall of the instruction of the Directorate General of Islamic Community Guidance number Dj.II/113 of 2009 regarding the use PNBP funds for marital reconciliation and P3N management, as well as the instruction of the Director General of Islamic Community Guidance number Dj.II/1 0f 2015 about the P3N designation for regions D1 and D2. The research method used is field research with a qualitative approach.The primary data from the instruction of the Directorate General of Islamic Community Guidance number Dj.II/113 of 2009, instruction of the Director General of Islamic Community Guidance number Dj.II/1 0f 2015, Head of KUA Padangsidimpuan Selatan district, Padangsidimpuan Tenggara district, the Padangsidimpuan Angkola Julu district, P3N who was dismissed and the community. And the secondary data in this study are books, journals, theses and other supporting sources.Data collection techniques with observation, interviews, and documentation, with qualitative descriftive data analysis techniques. As for the reserach results obtained in this study P3N removal is carried out in two stages, namely 1) all P3N in the working area of KUA Padangsidimpuan city were officially abolished since the fall of intruction of the Director General of Islamic Community Guidance number Dj.II/113 of 2009 and 2) was not reappointed after an instruction from the Director General of Islamic Community Guidance number Dj.II/I of 2015 because the entire area of KUA Padangsidimpuan city is classified as typology C. 1) The impact of removing P3N is that it has an impact on KUA which has one who doubles as the head of KUA. 2)There was a time conflict between someone who wanted to consult with the time of registration of marriage outside the KUA. 3) Information that is slow to reach the public. 4) Wedding schedule shift. 5)P3N is still used by the public.

Penghapusan Pembantu Pegawai Pencatat Nikah (P3N) Terhadap Pelayanan Pernikahan Siregar, Adelina; Nasution, Muhammad Arsad; Sainul, Ahmad
Jurnal El-Thawalib Vol 5, No 1 (2024)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/el-thawalib.v5i1.10858

This study examines the impact of removing P3N on marriage services at the Padang Sidempuan city Office of Religious Affairs after the fall of the instruction of the Directorate General of Islamic Community Guidance number Dj.II/113 of 2009 regarding the use PNBP funds for marital reconciliation and P3N management, as well as the instruction of the Director General of Islamic Community Guidance number Dj.II/1 0f 2015 about the P3N designation for regions D1 and D2. The research method used is field research with a qualitative approach.The primary data from the instruction of the Directorate General of Islamic Community Guidance number Dj.II/113 of 2009, instruction of the Director General of Islamic Community Guidance number Dj.II/1 0f 2015, Head of KUA Padangsidimpuan Selatan district, Padangsidimpuan Tenggara district, the Padangsidimpuan Angkola Julu district, P3N who was dismissed and the community. And the secondary data in this study are books, journals, theses and other supporting sources.Data collection techniques with observation, interviews, and documentation, with qualitative descriftive data analysis techniques. As for the reserach results obtained in this study P3N removal is carried out in two stages, namely 1) all P3N in the working area of KUA Padangsidimpuan city were officially abolished since the fall of intruction of the Director General of Islamic Community Guidance number Dj.II/113 of 2009 and 2) was not reappointed after an instruction from the Director General of Islamic Community Guidance number Dj.II/I of 2015 because the entire area of KUA Padangsidimpuan city is classified as typology C. 1) The impact of removing P3N is that it has an impact on KUA which has one who doubles as the head of KUA. 2)There was a time conflict between someone who wanted to consult with the time of registration of marriage outside the KUA. 3) Information that is slow to reach the public. 4) Wedding schedule shift. 5)P3N is still used by the public.

Agro-Economic of Dusun Systems in Small Islands: A Case of Ambon City, Maluku Indonesia Girsang, Wardis; Siregar, Adelina; Hamid, Hamid
Tropical Small Island Agriculture Management Vol 4 No 1 (2024): Tropical Small Island Agriculture Management
Publisher : Pattimura University Ambon Maluku Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/tsiam.2024.4.1.9

Whereas many studies highlight positive environmental and socio-economic effects of agroforestry systems, the agro-economic effect of Dusun practices as indigenous agroforestry systems has rarely been studied in detail, particularly in small island-Maluku Indonesia. This article examines the agro-economic of tropical perennial and annual fruit crops in the Dusun systems in Ambon city islands. A survey was conducted in three different Dusuns to obtain data through in-depth interviews of 88 heads of households. Our findings indicate that most Dusun farmers are uneducated and old age, half of them have small size of land, and 95% of land status belongs to kinship-clan ownership. Then, half of the farmers have an elementary school education, and 71% have a primary job as farmers, while 29% have a secondary job on the farm and non-farm activities. Amongst 26 crops that are found in three Dusun areas, nine crop types can be found in the whole Dusun, while the rest are located in one or two Dusun only. These crops are grown together and form multiple cropping structures from high stratum like durian and coconut to medium strata such as clove and nutmeg and low strata such as vegetables and tubers. The structures of the crops have an important role in maintaining biodiversity, minimizing soil erosion, water reservoir, and supporting socio-economic of the households. Annual income from rural household was estimated at around US$6487 or US $3.6/capita/day. Income average value was almost two folds of the World Bank poverty line standard. Nearly 80% of the total income are contributed by four main crops, i.e. clove (Eugenia aromaticum), durian (Durio zibethinus Mur), nutmeg (Myristica fragnans), and duku (Lansium domesticum), of which 11% is contributed predominantly by snake fruit (Salacca zallaca var amboniensis Becc), mangosteen (Garcinia mangostana L) and langsat (Lansium domesticum).

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