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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kesehatan Lingkungan indonesia Biogenesis: Jurnal Ilmiah Biologi Jurnal Agrotek Tropika Sebatik Gorontalo Fisheries Journal Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Hutan Tropika JURNAL SAINS DAN TEKNOLOGI PERIKANAN (JIKAN) Tarjih: Agribusiness Development Journal Jurnal Perikanan Jurnal Aplikasi Sains dan Teknologi : Agrisevika
Ridha Alamsyah
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Public Health Social Sciences Other

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GROWTH AND PRODUCTION OF TWO VARIETIES OF PULUT CORN (Zea mays ceratina kulesh) AT DIFFERENT DOSAGES OF NPK FERTILIZER Yustisia, Dian; Alamsyah, Ridha
Jurnal Agrotek Tropika Vol. 13 No. 1 (2025): JURNAL AGROTEK TROPIKA VOL 13, FEBRUARI 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i1.6580

Abstract

Corn is the second important commodity after rice in Indonesia. To obtain good corn production results, appropriate fertilizer application is needed. NPK fertilizer treatment with doses of 0 g (PO), 5 g (P1), 10 g (P2), and 15 g (P3) per planting, given at 10 days after planting and 35 days after planting. The method of fertilization is done by immersing it in an array around the base of the plant roots as deep as 5 to 10 cm. Harvesting is done on local corn varieties when the corn plants enter 60 days after planting. As for the corn pulut variety, it was carried out 75 days after planting. Plant observation include plant height, number of leaves, cob length, cob weight, and weight of 100 seeds for each treatment. The use of NPK fertilizer doses showed the best results in the P2(10gram)/plant treatment. The growth and production of two varieties of pulut corn plants that gave the best results were the purple corn variety (V1). The interaction between the two varieties and the dose of NPK fertilizer was not significant for any of the corn plant parameters observed.
Potensi Serapan Karbon Hutan Mangrove Pesisir Sinjai Utara Kabupaten Sinjai: Carbon Absorption Potential Of Mangrove Forests North Sinjai Coast, Sinjai District Azizah, Rahmah; Alamsyah, Ridha; Mutahharah, Mutahharah; Akram, Akram; Nurhaliza, Nurhaliza; Maulana, Wahyu
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14262

Abstract

Mangroves play an important role in carbon storage and absorption. Mangrove ecosystems absorb carbon dioxide from the atmosphere through photosynthesis, converting it into biomass. Mangroves can store up to four times more carbon per unit area than tropical forests. This study aims to determine the density, stem diameter, basal area of ​​mangroves, biomass, content, and the ability of mangroves to absorb carbon in the air. The method used is the calculation of several ecological indices. While the carbon content and absorption use the allometric method to determine the biomass of mangrove species. Furthermore, the calculation of carbon content and carbon absorption capacity. The average density of mangroves obtained ranges from 0.24-0.55 ind / m2, while the average DBH is between 6.86-16.10 cm and the average basal area is 36.94-203.48 m2. The average biomass of mangrove trees is 13,311-98,752 kg / tree or 288,885 ± 96,957 tons / ha. The average carbon content is6,256-46,414 kg/tree or 107,576±45,570 tons/ha. The carbon absorption capacity of the coastal mangrove forests of North Sinjai is an average of 22,961-170,338 kg/tree or 394,803±167,241 tons/ha. Mangroves are one of the key components in climate change mitigation. Conservation and restoration of mangrove ecosystems are important strategies in efforts to mitigate global climate change and improve the sustainability of coastal environmental ecosystems.
Estimasi Kandungan Karbon dan Serapan Karbon pada Daun, Akar dan Tanah di Pesisir Mangrove Sinjai Utara Kabupaten Sinjai : Estimation of Carbon Content and Carbon Uptake in Leaves, Roots and Soil in the Mangrove Coast of North Sinjai, Sinjai Regency Mutahharah, Mutahharah; Alamsyah, Ridha; Azizah, Rahmah; Akram, Akram
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.16815

Abstract

Mangrove forests are one of the coastal ecosystems of tropical waters that have various potential benefits for both the environment and humans. The existence of mangrove forests is very necessary for the future of the earth. Mangrove forests have one very important function, namely as an absorber and store of carbon (C). Mangrove forests can store more than three times the average carbon storage per hectare by tropical land forests. This study aims to determine the carbon content and carbon absorption in leaves, roots and soil on the mangrove coast, especially in North Sinjai, Sinjai Regency. The method used in this study is the sampling method to measure the carbon content in leaves, roots and soil. The analysis will involve direct measurements in the field and laboratory analysis to obtain accurate data. The carbon content in mangrove leaves ranges from 0.9-0.11 tons/ha, with a carbon absorption capacity of 0.33-0.42 tons/ha. In the roots, the carbon content ranges from 0.44-0.72 tons/ha with an absorption capacity of 1.60-2.64 tons/ha. The carbon content in the soil ranges from 8.66-156.83 tons/ha with an absorption capacity of 31.79-575.55 tons/ha. This study can be used as basic data in future policies for climate change mitigation, especially the mangrove ecosystem in Sinjai Regency, South Sulawesi Province and can open up opportunities for carbon-based economic schemes such as carbon trading.
Pelatihan dalam Pengembangan Tanaman Kentang di Kecamatan Kanreapia Kabupaten Gowa Megawati; Alamsyah, Ridha; Ahmad, Ahfandi; Nurdin, Fadilah; Qinayah, Mirnatul; Raisa, Daeva Mubarika; Astaman, Putra; A. Tenriawaruwaty; Wahyuni, A. Panca; Sultan
Jurnal Aplikasi Sains dan Teknologi : Agrisevika Vol. 1 No. 2 (2024): Desember 2024
Publisher : Faculty of Agriculture, Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/agrisevika.v1i2.11

Abstract

Petani kentang di Desa Kanreapia menghadapi tantangan fluktuasi harga, ketergantungan pada tengkulak, kelembagaan tani lemah, dan minimnya pengolahan pascapanen, dengan produktivitas 20 ton/ha (dibawah potensi 30 ton/ha). Penelitian ini bertujuan mengidentifikasi masalah aktual, merumuskan strategi partisipatif, dan memperkuat kelembagaan serta pemasaran berbasis kearifan lokal. Menggunakan participatory action research (PAR) melalui diskusi terstruktur dan observasi lapangan bersama 25 petani, penyuluh, dan akademisi. Hasil mengungkap empat masalah utama: (1) ketergantungan pada tengkulak, (2) minim diversifikasi produk olahan, (3) kelembagaan tidak optimal, dan (4) akses informasi terbatas. Rekomendasi mencakup penguatan kelembagaan sebagai unit bisnis kolektif, pelatihan pascapanen, dan kolaborasi pemasaran digital. Pendekatan partisipatif efektif membangun solusi kontekstual, namun memerlukan pendampingan jangka panjang dan integrasi kebijakan lokal untuk keberlanjutan.
Co-Authors A. Liswahyuni A. Liswahyuni A. Tenriawaruwaty A. Tenriawaruwaty A. Tenriwaruwaty Ahfandi Ahmad Akram, Akram Andi Liswahyuni Andi Tenriawaruwaty A. R. Zulkifli Armita Permatasari Azizah, Rahmah Derek Soto Dian Yustisia Dietriech G. Bengen Fadilah Nurdin I Wayan Nurjaya Irfan Fauzi Irfan Fauzi Irfan Fauzi Irfani Tahira Jusmiati Jusmiati Mapparimeng Mapparimeng Megawati Megawati Mirnatul Qinayah Muhammad Ardiansyah Mutahharah, Mutahharah Neviaty P. Zamani Nurdin, Fadilah Nurhaliza, Nurhaliza Nurul Eka Wijayanti Nurul Eka Wijayanti Risa Permatasari, Armita Putra Astaman Qinayah, Mirnatul Raisa, Daeva Mubarika Sri Ainun Fadli sultan Tahira, Irfani Uspar Uspar Uspar Uspar Wahyu Maulana, Wahyu Wahyuni, A. Panca Wahyuni, Andi Panca Zulkifli, Andi Tenriawaruwaty A. R. Zulkifli, Andi Tenriawaruwaty A.R.