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All Journal Journal of Tropical Crop Science AGROLOGIA : Jurnal Ilmu Budidaya Tanaman JURNAL BUDIDAYA PERTANIAN International Journal of Multidisciplinary: Applied Business and Education Research Innovative: Journal Of Social Science Research Jurnal Pertanian Kepulauan Rumphius Pattimura Biological Journal
Madubun, Elia Leonard
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Analisis Tren Perubahan Curah Hujan dan Pemetaan Klasifikasi Iklim Schmidt - Ferguson untuk Penentuan Kesesuaian Iklim Tanaman Pala (Myristica fragrans) di Pulau Seram Semuel Laimeheriwa; Elia Leonard Madubun; Eklesia D. Rarsina
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.v8i2.1012

Abstract

Perubahan iklim yang terus terjadi hingga saat ini telah memberikan dampak terhadap berbagai segi kehidupan; termasuk sektor pertanian. Penelitian bertujuan untuk menentukan tren perubahan curah hujan, pemetaan klasifikasi iklim Schmidt-Ferguson yang baru, dan menentukan kesesuaian iklim tanaman pala di Pulau Seram.  Penelitian ini menggunakan data curah hujan berbagai lokasi di Pulau Seram selama 60 tahun pengamatan.  Analisis data terdiri dari: (1) analisis pola curah hujan dan membangkitkan data curah hujan menggunakan teknik rataan aljabar, (2) analisis tren perubahan curah hujan, (3) pemetaan klasifikasi iklim, dan (4) penentuan kesesuaian iklim tanaman pala.  Hasil penelitian menunjukkan bahwa di Pulau Seram telah terjadi peningkatan curah hujan rataan tahunan dalam 30 tahun terakhir (periode 1989-2018) dibandingkan dengan priode 30 tahun sebelumnya (periode 1959-1988), yaitu sebesar 11,2 hingga 15,6%.  Di Pulau Seram terdapat tiga tipe iklim Schmidt-Ferguson, yaitu A, B, dan C.  Wilayah yang sangat sesuai untuk pengembangan tanaman pala seluas 1.035 ha atau 59% dari luas Pulau Seram dan daerah yang sesuai seluas 457 ha atau 26% dari luas Pulau Seram.  Sedangkan daerah yang kurang sesuai dan tidak sesuai untuk tanaman pala seluas 258 ha atau 15% dari luas Pulau Seram.Kata kunci:  curah hujan, Schmidt-Ferguson, kesesuaian iklim, tanaman pala, Pulau Seram
Inventory of Weed Types on Clove Plants (Syzygium aromaticum L.) with Different Altitudes in Waai Village, Salahutu District, Central Maluku. Elia L. Madubun; Abdul Karim Kilkoda; Imelda Grace Walasary
Agrologia Vol 12, No 1 (2023): 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.v12i1.1664

Abstract

This study aims to determine the dominant type of weed in the clove plantation area at an altitude of 63 m above sea level and 120 meters above sea level. This study uses a purposive sampling method of vegetation analysis with a sample plot of 1m´1m. The results showed that at an altitude of 63 m dpl found 23 types of weeds from 16 families consisting of 12 types of broad leaf weeds (broad leaf) from 11 families, 5 types of grass weeds (grass) from 3 families, 2 types of tekian weeds (cyperaceae). from 1 tribe, 2 types of ornamental plants from 2 tribes and 2 types of fern weeds from 2 tribes. Meanwhile, at an altitude of 120 m above sea level, 26 types of weeds were found from 22 tribes consisting of 13 types of broad leaf weeds from 12 families, 4 types of grass weeds (grasses) from 4 families, 5 species of fern weeds (fern) from 4 tribes. , 1 type of fern weed from 1 tribe and 3 types of tekian weed from 1 tribe.
Identifikasi Tumbuhan Bawah di Dusung pada Ketinggian Tempat yang Berbeda di Dusung Hative Besar, Kecamatan Teluk Ambon, Kota Ambon Maria Mahubessy; Johan Riry; Elia Madubun
JURNAL PERTANIAN KEPULAUAN Vol 6 No 1 (2022): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.238 KB) | DOI: 10.30598/jpk.2022.6.1.38

Abstract

"Dusung" is a habitat with a variety of plant communities in the form of trees. bushes, and grass. Research aims to identify under growth in "Dusung" at different altitudes. The research was carried out in Dusung Hative Besar using the method of surveying weeds directly in the field. Vegetation analysis using the squared method by purposive sampling with sample plots measuring 1×1m. Sampling on nutmeg plantation areas is carried out in each area at various different heights, namely at altitudes of 0, 100, and 200 m asl. The results showed that the value of the community coefficient (C) obtained from the comparison between two communities, namely between 0 and 100 m asl, was 0%, while 0 and 200 m above sea level was3.17%. This shows that the lower plant communities at an altitude of 0 and 100 m above sea level and 0 and 200 m above sea level are different because of the value of C<70%. While the comparison between two communities altitudes of 100 and 200 asl has a C value of 72.48% means that the lower plant community between the two heights of the place being compared is the same or uniform (C >70%).
Analisis Curah Hujan Ekstrim untuk Penentuan Ketersediaan Air Tanah di Kecamatan Amahai, Kabupaten Maluku Tengah Frans Thomas Latuny; Rhony Einstein Ririhena; Elia Leonard Madubun
JURNAL PERTANIAN KEPULAUAN Vol 6 No 1 (2022): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.021 KB) | DOI: 10.30598/jpk.2022.6.1.51

Abstract

The influence of global phenomena on Extreme rainfall in the Moluccas is El Nino and La Nina. This phenomenon is closely related to the reduction of rainfall and excess rainwater which has a systematic impact on the availability of groundwater and also on the production of food crops. This study aims to obtain data on the impact of El Nino and La Nina phenomena by calculating the availability of groundwater in Amahai district. The study used data on climatic elements from the Amahai Meteorological Station, then the data was processed using statistical calculations to obtain normal rainfall and the average distribution of precipitation in the growing season and planting time.
Analisis Perubahan Curah Hujan Dan Pemetaan Zona Agroklimat Oldeman Pulau Seram Provinsi Maluku Robby G. Risamasu; Semuel Laimeheriwa; Elia L. Madubun; Marcus Luhukay
Innovative: Journal Of Social Science Research Vol. 3 No. 3 (2023): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v3i3.2317

Abstract

Adanya kecenderungan terjadinya perubahan curah hujan dalam periode belakangan ini dibandingkan dengan periode sebelumnya, maka berapa besar perubahan curah hujan yang sudah terjadi perlu dianalisis untuk mengetahui kondisi iklim terkini. Berdasarkan hal tersebut, maka telah dilakukan suatu penelitian yang bertujuan untuk menentukan tren perubahan curah hujan dan memetakan Zona Agroklimat Oldeman Pulau Seram yang baru. Penelitian ini menggunakan data curah hujan 60 tahun yang dibagi menjadi 2 periode, yaitu 1962-1991 dan 1992-2021. Pengumpulan data curah hujan bersumber dari berbagai Stasiun Meteorologi yang ada saat ini dan Stasiun Hujan yang pernah ada di Pulau Seram serta melalui pembangkitan data curah hujan menggunakan persamaan matematis sederhana. Analisis tren perubahan curah hujan dilakukan dengan membandingkan nilai rata-rata curah hujan antara dua periode. Penentuan zona agroklimat menggunakan sistem klasifikasi iklim Oldeman dan pemetaannya menggunakan Program Arc View 3.3. Hasil penelitian menunjukkan bahwa telah terjadi peningkatan curah hujan rata-rata tahunan di Pulau Seram dalam 30 tahun terakhir (periode 1992-2021) dibandingkan dengan 30 tahun sebelumnya (periode 1962-1991), yaitu sebesar 18,0% pada wilayah dengan pola hujan monsunal dan 12,2% pada wilayah dengan pola hujan lokal. Berdasarkan sistem klasifikasi iklim Oldeman, di Pulau Seram terdapat 4 zone agroklimat, yaitu A1, B1, C1 dan D1.
Calculation of Land Water Balance and Its Utilization for Determining the Growing Season in the Pulau-Pulau Aru District, Aru Islands Regency, Maluku Province Elia L Madubun; Semuel Laimeheriwa; Merson Panggua
JURNAL BUDIDAYA PERTANIAN Vol 18 No 2 (2022): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2022.18.2.107

Abstract

There are various methods that can be used to determine the growing season in an area; one of them is through the calculation of the land water balance. This study aimed to determine the presence of groundwater and determine the planting season in the Pulau-Pulau Aru Sub-District. In this study, the calculation of the regional average rainfall used monthly time series rainfall data for 30 years of observation (1991–2020). The calculation of land water balance used the ThornthwaiteMather method, and the determination of the growing season based on the values of soil water content at optimum conditions and the ratio between rainfalls and potential evapotranspiration. The results showed that the optimum soil water content for plants under conditions of 75% chance of rainfall lasted for 7 months (December to June), which was 2 months shorter than normal. The length of growing season with a 75% chance of rainfall lasted for 7 months (December to June), 2 months shorter than the growing season under normal rainfall conditions.
Effect of Allelopathy from Methanolic Extract of Broadleaf Weeds (Ageratum conyzoides and Borreria alata) on the Viability of Soybean Seeds (Glycine max L.) Abdul Karim Kilkoda; Asri Subkhan Mahulette; Elia Leonard Madubun
Journal of Tropical Crop Science Vol. 10 No. 03 (2023): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.10.03.229-237

Abstract

The experiment aimed to investigate the allelopathic effects of active compounds present in broadleaf weeds Ageratum conyzoides and Borreria alata. The study also sought to assess the viability of various seed varieties grown using allelopathic extracts from these weeds, varying in concentrations of tannins and phenols. The research findings revealed that methanol extracts exhibited potent allelopathic properties, inhibiting germination, radicle and hypocotyl growth, as well as reducing the germination rate of soybean seeds. B. alata weed extracts demonstrated lower allelopathy than A. conyzoides, suggesting a possible alteration in the active compounds (allelochemicals) present due to a reforming process. Extracts from both A. conyzoides and B. alata weeds inhibited root length, hypocotyl growth, and germination across a range of concentrations, from low (10% v/v) to high (30% v/v).
Rainfall Variability and Its Influence on P Palm Oil Productivity (Elaeis Guineensis Jacq.): Case Study at PT. Nusaina Group Seram Island Province Maluku Patty, Jacob R.; Laimeheriwa, Semuel; Madubun, Elia L.; Lingga, Sandivo
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 5 No. 3 (2024): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.05.03.09

Abstract

Rainfall variability significantly influences plant productivity; including palm oil. This research aims to describe rainfall variability and its influence on oil palm productivity on Seram Island, Maluku Province. The data collected consists of rainfall, palm oil production data and supporting data. The analytical method used consists of generating rainfall data, analyzing extreme rainfall conditions and regression analysis to see the relationship between rainfall and palm oil productivity. The research results show that the El Nino rainfall anomaly at the research location in the 1992-2021 period occurred 8 times with a frequency of once every 2 - 6 years or an average of once every 3 years. La Nina occurs 7 times with a frequency of 1 – 10 years or an average of once every 4 years. The very extreme El Nino caused a reduction in rainfall at the research location by 888 mm or 40% of normal conditions, whereas the very extreme La Nina event resulted in an increase in rainfall of 1491 mm or 58% of normal conditions. Rainfall variability is very closely related to oil palm productivity with the regression equation Y = 94.05 – 0.1558x + 0.000083x 2 – 10 -8 x 3 and the accuracy level R 2 is 98.6%.
Analysis of Land Water Balance in Various Rainfall Conditions and Its Utilization to Determine Planting Patterns of Food Crops in the Eastern Part of Seram District of Seram Island Madubun , Elia L.; Ririhena, Rhony E.; Laimeheriwa , Semuel; Simamora , Ridoni
International Journal of Multidisciplinary: Applied Business and Education Research Vol. 5 No. 7 (2024): International Journal of Multidisciplinary: Applied Business and Education Rese
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/ijmaber.05.07.03

Abstract

Soil water balance calculation is one of the methods used to estimate the dynamics of soil water content during plant growth. This study aims to describe rainfall conditions and analyze soil water balance as well as determine the growing season and composition of food crop combination patterns based on the available growing season in East Seram Island. This research uses rainfall data for 30 years of observation period 1992-2021 from Geser Meteorological Station (Data analysis with the following stages: (i) rainfall analysis (ii) calculation of average rainfall (iii) determination of rainfall with a 75% chance (iv) calculation of soil water balance using the Thornthwaite and Mather method (v) determination of the growing season and cropping pattern. The results showed that the average rainfall in East Seram was 2,194 mm/year with a water deficit (D) occurring in October and November, then the rainfall had a 75% chance of being exceeded at 1,439 mm/year with a water deficit of 228 mm/year which lasted for eight months, namely August - March. The growing season under normal rainfall conditions was available throughout the year, while under high rainfall conditions, a 75% chance of the growing season was available for five months, namely May and October. The cropping patterns and crop combinations used were monoculture, polyculture, and intercropping with combinations of cassava, maize, sweet potato, groundnut, mung bean, cassava-corn, cassava-peanuts/green beans, maize-peanuts, cassava-corn-peanuts/green beans, cassava-corn-horticultural crops.
Analisis Kondisi Iklim dan Pemanfaatannya untuk Penetapan Musim Tanam dan Pola Tanam di Daerah Taniwel Kabupaten Seram Bagian Barat Sitorus, Bangga; Laimeheriwa, Semuel; Madubun, Elia Leonard
JURNAL PERTANIAN KEPULAUAN Vol 7 No 1 (2023): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jpk.2023.7.1.9

Abstract

A cropping pattern is an agricultural management activity that takes climate and soil conditions into account and seeks to achieve maximum results. Controlling cropping patterns is part of agricultural action planning to minimize the risk of crop failure. The purpose of this study is to (i) describe the climatic conditions in the Taniwell area, (ii) establish an effective growing season in the Taniwell area, and (iii) determine planting patterns for food crops in the Taniwell area. That's it. Length of growing season available. This study used his monthly climate data for 30 observation years from 1992 to 2021 from the Namlea Meteorological Station. Data analysis by following steps: (i) Analysis of rainfall (ii) Calculation of average rainfall (iii) Determination of rainfall with 75% probability (iv) Determination of planting season and planting pattern. The results showed that the effective growing season in the Taniwell area lasted 6 months and 24 days. It starts on December 1st and ends on June 24th.
Co-Authors Abdul Karim Kilkoda, Abdul Karim Asri Subkhan Mahulette Deraukin, Adelina Eklesia D. Rarsina Frans Thomas Latuny Imelda Grace Walasary Imelda Jeanette Lawalata Johan Riry Laimeheriwa, Semuel Lingga, Sandivo Luhukay, Marcus Maria Mahubessy Merson Panggua Patty, Jacob R Rhony E Ririhena Risamasu, Robby G Simamora , Ridoni Sitorus, Bangga Tomasoa, Reny