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Journal : Jurnal Pertanian Kepulauan

Analisis Kondisi Iklim dan Pemanfaatannya untuk Penetapan Musim Tanam di Daerah Batabual Kabupaten Buru Jamadin Biloro; Jacob Richard Patty; Semuel Laimeheriwa
JURNAL PERTANIAN KEPULAUAN Vol 5 No 2 (2021): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.895 KB) | DOI: 10.30598/10.30598/jpk.2021.5.2.111

Abstract

The determination of the growing season is closely related with the climate change that occurs in a region The study aims to determine the trend of changing the growing season in the Batabual Area, changes in the growing season that occur due to changes in rainfall, and alternative planting patterns in Batabual region based on changes in the growing season that occur. Data analysis consisted of (1) determining the climatic conditions of the region using the Algebraic average method from monthly rainfall data from the Buru meteorological climate station for the last 30 years 1991-2020 and (2) determining the planting season using the FAO method (1978). The results showed that based on average rainfall data, the growing season lasted for 10 months and 19 days (November to September 19 of the following year). However, if you use rainfall with a 75% chance of being exceeded, the growing season period only lasts for 8 months and 21 days (December – July 21 of the following year).
Analisis Musim Tanam dan Pengaturan Pola Tanam Tanaman Pangan pada Berbagai Kondisi Curah Hujan di Daerah Amahai Kabupaten Maluku Tengah Erika Tentua; Semuel Laimeheriwa; Jacob Richard Patty
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 (350.609 KB) | DOI: 10.30598/jpk.2022.6.1.23

Abstract

Cropping patterning is an farming practice to obtain maximum production taking into account climatic conditions, soil and types of crops cultivated. This research, which was carried out in the Amahai Region, aimed to: (i) describe extreme climate events and (ii) determine the growing season and cropping patterns of food crops based on the length of the growing season available in the region. The analytical methods used consisted of: (i) determining extreme rainfall based on BMKG standards and ENSO History data, (ii) determining the planting season using the FAO method, and determining cropping patterns in conditions of extreme rainfall. The results showed that a very extreme El Nino event caused a decrease in rainfall in the Amahai region by 1,444 mm or 54% of its normal condition, on whereas a very extreme La Nina event caused an increase in rainfall by 1,528 mm or 60% of its normal condition. The growing season in the Amahai region under conditions of average (normal) and La Nina rainfall is throughout the year (12 months), and under conditions of extreme El Nino rainfall, the growing season lasts for 8 months and 26 days, 96 days shorter than normal conditions. In conditions of extreme El Nino rainfall, the cropping patterns that can be applied are sequential, monoculture, and polyculture/ intercropping.
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.
Analisis Peluang Kejadian Deret Hari Kering Selama Musim Tanam Efektif pada Periode El Nino di Pulau Ambon Laimeheriwa, Semuel; Amba, Martha; Putri, Nisrina Intan
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.2025.9.1.1

Abstract

spell analysis is one of the indicators that can be used to measure the level of vulnerability of a region to drought. This study aims to determine the chances of a series of dry days during the effective growing season during El-Nino on Ambon Island. Data analysis was carried out with the following stages: (1) calculating rainfall probability 75% using the ranking order method, and potential evapotranspiration using the Penman-Monteith method in the Cropwat 8.0 Program package, (2) calculating land water balance and determining the effective growing season based on optimum soil water content, (3) determining the years of El Nino occurrence and the chances of a series of dry days. The results of the study showed that the effective growing season on Ambon Island lasted for 7 months; April to October. The El Nino event on Ambon Island during the period 1979 – 2023 tends to occur once every three years. The chances of a series of dry days ≥ 5 days during the growing season ranged from 56 - 88%; ≥ 10 days: 27 - 88%; ≥ 15 days: 7 - 80%; and ≥ 20 days: 0 - 47%. Keywords: dry spell, growing season, El Nino, Ambon Island