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Influence of Land Use and Rainfall on Carbon Stock Dynamics for Oil Palm and Rubber Oktanindita Priambodo; Hariyadi; Suwarto; I Putu Santikayasa
Agromet Vol. 34 No. 2 (2020): DECEMBER 2020
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j.agromet.34.2.121-128

Abstract

The expansion of agricultural commodities including oil palm plantations potentially causes an increase of greenhouse gas emissions by amplifying carbon dioxide (CO2) in the atmosphere. In the long term, this amplification will alter climate change. However, oil palm also has the potency to reduce greenhouse gas emissions by absorbing CO2 through photosynthesis. This study aims to determine the carbon stock that can be absorbed by oil palm and rubber plants, and to determine the relationship of rainfall with carbon stock in oil palm plants. The study used satellite image data based on Landsat and combined with rainfall data from near Perbaungan District, North Sumatra. Three Landsat data (acquisition date: (i) 12 February 2000, (ii) 8 March 2009, and (iii) 11 August 2019) were processed to estimate carbon stock. The procedure for estimating carbon stock was as follows: determining the sample and digitizing the sampling points, converting the digital value of the numbers into the spectral spectrum, calculating the albedo values, calculating the long-wave and short-wave radiations, computing biomass, and the absorbed carbon stock. The results showed that the carbon stock in oil palm was greater than that of rubber plants as oil palm has a greater biomass. The greater the plant biomass, the bigger the carbon stock absorbed. Further, the findings revealed that rainfall in dry season has a contribution to carbon stock in oil palm and rubber. The higher the total rainfall during dry season will increase the absorbed carbon stocks.
Model Simulasi Nitrogen Pada Tanaman Tebu (Saccharum officinarum L.) Okta Nindita Priambodo
JURNAL VOKASI TEKNOLOGI INDUSTRI (JVTI) Vol 3, No 2 (2021): Jurnal Vokasi, Teknologi, dan Industri (JVTI)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.337 KB) | DOI: 10.36870/jvti.v3i2.236

Abstract

Tanaman tebu (Saccharum officinarum L.) merupakan komoditas yang mempunyai nilai ekonomis yang tinggi di Indonesia. Proses yang terjadi pada tanaman tebu dapat disederhanakan melalui model simulasi. Model simulasi digunakan untuk melihat pengaruh unsur cuaca dan pupuk terhadap perkembangan, pertumbuhan, dan poduktivitas tanaman. Dalam pemupukan yang perlu diperhatikan adalah efisiensi pemupukan. Kekurangan nitrogen akan menyebabkan tumbuhan tidak tumbuh secara optimum, sedangkan kelebihan nitrogen selain menghambat pertumbuhan tanaman juga akan menimbulkan pencemaran terhadap lingkungan. Jika nitrogen yang diserap dari tanah ke tanaman jumlahnya lebih kecil dari pada jumlah kebutuhan nitrogen tanamannya maka sebaiknya tanaman tersebut ditambahkan unsur hara nitrogen. Tahapan kegiatan penelitian terdiri atas 4 tahap yaitu penyusunan konsep model, penentuan nilai peubah dan parameter, input model, penyusunan model simulasi. Interaksi unsur cuaca yaitu curah hujan sangat menetukan kandungan air tanah yang yang berkaitan erat dengan proses mineralisasi (amonifikasi dan nitrifikasi) yang pada akhirnya akan mempengaruhi hasil produksi tanaman tebu. Curah hujan merupakan merupakan faktor yang mempengaruhi perubahan nitrogen dalam tanah. Model simulasi nitrogen ini dapat digunakan untuk menjelaskan proses perubahan nitrogen pada tanah dan tanaman tebu pada tingkat satu kali pemupukan standar. Pada tingkat pemupukan dua kali standar, model tidak dapat digunakan karena model tidak menjelaskan keseluruhan proses yang mempengaruhi.
Changes in land use impacted air temperature in Bekasi Regency Okta Nindita Priambodo; Ade Wachjar; Anugerah Rafi Pratama; Muhammad Sahfitri
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 13 No 3 (2023): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.13.3.408-416

Abstract

Indonesia is experiencing dynamic land change. One area in Indonesia that has experienced high land use change is Central Cikarang District. Landsat 9 image sensing and land cover data from the Ministry ofEnvironment and Forestry show the increased temperature in the Central Cikarang District area since 2004. Based on the NDVI analysis, the residential area has increased, and the area of green vegetation hasdecreased. Analysis of temperature changes using satellite imagery also shows a wider distribution of hot temperatures in the 2004–2022 range. From the two data analyses that were carried out, a regression test was carried out to determine the correlation between air temperature and vegetation density. The results of the regression test obtained an R2 value of 7.2%. It is also known that the value of the regression coefficient is negative, which means that the correlation of the two data is inversely proportional. So this research analyzes changes in land cover to changes in temperature.
SISTEM AKUAPONIK CERDAS UNTUK KETAHANAN PANGAN MASYARAKAT MANDIRI DI DESA KARANGASIH Hanifadinna Hanifadinna; Okta Nindita Priambodo; Deni Rachmat; Alfian Novrizal
Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) #5 2024 Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) 2022
Publisher : Konferensi Nasional Pengabdian Masyarakat (KOPEMAS) #5 2024

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

Abstract

Ketahanan dan keberlanjutan pangan masih menjadi masalah utama bagi Indonesia. Khususnya bagi masyarakat yang tinggal di sekitar perkotaan, urbanisasi yang demikian pesat, kelangkaan lahan, dan rendahnya tingkat produksi ikan dan sayur pada daerah perkotaan. Program Pengabdian Kepada Masyarakat (PKM) ini mencoba merancang dan mengembangkan sistem Akuaponik cerdas yang mengintegrasikan antara budidaya ikan dan sayuran. Sistem Akuaponik Cerdas ini dikelola dan dilakukan secara bersama oleh dosen dan mahasiswa prodi Teknologi Pengolahan Sawit (TPS) ITSB dalam rangka untuk menjawab pertanyaan, tantangan, hingga solusi mengenai ketahanan dan keberlanjutan pangan dengan penerapan Teknologi Internet of Things (IoT). Sistem akuaponik cerdas akan mengontrol kebutuhan ikan dan sayuran melalui aktuator pompa, lampu UV, dan mikrokontroler yang terhubung dengan smartphone. Arus listrik digunakan saat menyalakan lampu UV dan tenaga pompa diperoleh dari Solar Panel yang bisa diatur dengan menggunakan aplikasi berbasis Android. Implementasi yang terdapat pada kegiatan Program Pengabdian Kepada Masyarakat ini dilaksanakan dalam bentuk penyuluhan yaitu dimulai dari tentang Ketahanan Pangan, penjelasan teknis pembuatan hingga perancangan sistem Akuaponik, serta informasi dan kegiatan pelaksanaan penyemaian tanaman menggunakan sistem Akuaponik.
Aplikasi Tandan Kosong Kelapa Sawit dan Limbah Cair Pabrik Kelapa Sawit pada Tanaman Kelapa Sawit Menghasilkan (Elaeis Guineensis Jacq): Application of Palm Oil Empty Fruit Bunches and Palm Oil Mill Effluent in Producing Palm Oil Plants (Elaeis guineensis Jacq.) Priambodo, Okta Nindita; Erdiansyah, Naufal Al-Fattah
Gontor Agrotech Science Journal Vol. 10 No. 2 (2024): December 2024
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v10i2.12175

Abstract

Oil palm is one of the important plantation commodities in Indonesia, with a plantation area reaching 14.33 million hectares and continuing to grow. This growth has led to an increase in the number of oil palm processing factories, which produce solid waste of Empty Fruit Bunches (EFB) and liquid waste of Palm Oil Mill Effluent (POME). If not processed properly, this waste can pollute the environment. However, this waste can be used as organic fertilizer that is rich in nutrients, reducing dependence on inorganic fertilizers, and saving costs. At the Rama-Rama Oil Palm Plantation, this waste is used as a soil conditioner and source of nutrients, with the hope of increasing oil palm productivity. This study aims to determine the effect of EFB and POME applications on oil palm productivity by comparing productivity between land applied with EFB and POME using the Independent T Test method at a real level of 5%. The results of observations show that POME and EFB applications affect the production of fresh oil palm fruit bunches, the number of fresh oil palm bunches, and the weight of oil palm bunches. POME application has a greater impact on the production of fresh oil palm fruit bunches, the number of fresh oil palm bunches, and the weight of oil palm bunches compared to EFB application and without POME and EFB application. The average production of fruit bunches in the EFB and POME blocks each month is above its production potential according to the land suitability level of class S2.
Efektivitas Berbagai Konsentrasi AB Mix terhadap Pertumbuhan dan Anatomi Tanaman Jagung (Zea mays L.) dalam Sistem Hidroponik Hidayatullah, Careca Sepdihan Rahmat; Priambodo, Okta Nindita; Sutanto, Oentari Prilaningrum; Arrufitasari, Putri Nur; Handini, Aline Sisi
Jurnal Agroekoteknologi Tropika Lembab Vol 8, No 1 (2025): Agroekoteknologi Tropika Lembab Volume 8 Nomor 1 Agustus 2025
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jatl.8.1.2025.20367.70-76

Abstract

Tanaman jagung (Zea mays L.) merupakan serealia terbesar dalam persebaran dan produksi yang berguna untuk sumber nutrisi manusia, pakan ternak, dan biofuel di dunia. Upaya peningkatan produksi dan ketahanan pangan jagung terus ditingkatkan dengan cara pemberian pupuk AB Mix yang tepat jenis dan dosis. Selain penggunaan pupuk AB Mix, perlu adanya inovasi dalam hal budidaya yaitu hidroponik sistem apung yang efisien. Penelitian bertujuan untuk mengetahui pengaruh berbagai konsentrasi AB Mix terhadap pertumbuhan dan anatomi tanaman jagung (Zea mays L.) pada sistem hidroponik. Percobaan telah dilakukan di dalam greenhouse di di Kebun Cikabayan Bawah, Institut Pertanian Bogor, Bogor, Indonesia dengan ketinggian tempat 234 m dpl. Rancangan percobaan menggunakan Rancangan Acak Kelompok Lengkap Teracak (RAKLT) sederhana dengan satu faktor, yaitu konsentrasi AB Mix. Perlakuan terdiri atas tiga taraf konsentrasi, yaitu ½ kali, 1 kali, dan 2 kali konsentrasi AB Mix. Masing-masing perlakuan diulang sebanyak enam kali, sehingga total terdapat 18 unit percobaan. Hasil analisis menunjukkan 2 kali konsentrasi AB Mix menunjukkan peningkatan yang siginfikan sebesar 107% dibandingkan dengan ½ kali konsentrasi AB Mix umur 4 minggu setelah semai (MSS). Tanaman jagung mengalami pertumbuhan dan hasil dengan baik pada perlakuan 2 kali konsentrasi AB Mix seperti ditunjukkan oleh parameter pengamatan tinggi tanaman, bobot basah tajuk umur 4MSS,bobotbasah akar 3-4MSS,danbobot basahtotal4MSS.Perlakuan 2 kali konsentrasi AB Mix adalah perlakuan terbaik dalam budidaya tanaman jagung (Zea mays L.) secara hidroponik hingga umur 4 MSS. Perlu adanya penelitian lebih lanjut terkait pengaruh konsentrasi AB Mix dengan berbagai varietas tanaman jagung dari aspek fisiologi hingga bobot panen jagung.
Mobile Ad-Hoc Network (MANET) Method: Some Trends and Open Issues Dwi Wijonarko; Samsul Arifin; Muhammad Faisal; Muhammad Nabil Pratama; Okta Nindita Priambodo; Edwin Setiawan Nugraha
Recent in Engineering Science and Technology Vol. 3 No. 2 (2025): RiESTech Vol. 3 No. 2 Years 2025
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v3i2.108

Abstract

This study analyzes the latest developments and trends in the field of Mobile Ad-Hoc Networks (MANET) through a bibliometric approach using a metadata dataset from publications taken from Scopus between 2021 and 2024. By utilizing VOSviewer to visualize the data, the study identified key keywords that dominated the MANET literature, such as "security", "routing protocols", "mobility", and "5G". The visualization results show several important clusters, including topics related to network security, vehicle networks (VANET), and the application of advanced technologies such as machine learning in network management. Despite the decline in the number of publications in 2023 and 2024, collaboration between authors continues to show a strong trend. The research also highlights various challenges that are still open problems, such as the development of efficient routing protocols, improving network security, and managing resources in a dynamic MANET environment. In addition to the VOSviewer analysis, further exploration was carried out using the built-in visualization tools from the Scopus web platform to enrich the interpretation of emerging topics and research connections. This was followed by a deeper conceptual mapping using Scopus AI, which provided a visual breakdown of interconnected themes such as security issues, routing protocols, and different network types like VANET and FANET. To complement and validate the findings, the study also incorporated evidence based summaries retrieved from Consensus.app, offering additional insights from AI-driven scientific consensus. This multi-platform approach enhances the reliability of the analysis and provides a more comprehensive view of current and future research directions in the MANET domain.
Biomass and Chlorophyll Responses of Corn Plants (Zea mays L.) to Varying Abmix Concentrations in A Hydroponic Environment Careca Sepdihan Rahmat Hidayatullah; Okta Nindita Priambodo; Oentari Prilaningrum Sutanto; Bagus Arrasyid
International Journal of Agriculture System VOLUME 13 ISSUE 2, DECEMBER 2025
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ijas.v13i2.6603

Abstract

Corn (Zea mays L.) is the second most important agricultural commodity in Indonesia, after rice. Corn plays an important role as a raw material for animal feed, bioenergy (biofuel), and various other industrial products. However, corn productivity is highly dependent on the availability of nutrients in the growing medium. Therefore, this study aims to evaluate the effect of various AB Mix concentrations on the biomass and chlorophyll of corn (Zea mays L.) plants in a hydroponic system. The experimental design used a simple randomized complete block design (RCBD) with one factor, namely the AB Mix concentration (1/2x, 1x, and 2x) and correlation analysis using R-Studio version 2025. At 6 WAP, differences in shoot, root, and total biomass between treatments were still significant. 2x AB Mix concentration again produced the highest biomass, namely 29.67 g. Variations in AB Mix concentration have a significant effect on biomass yield (biomass of shoots at 5-6 WAP, biomass of roots at 6 WAP, and total weight at 5-6 WAP) and chlorophyll a, b content, chlorophyll a+b ratio in corn leaves.