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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Flora: Jurnal Kajian Ilmu Pertanian dan Perkebunan
Andreas Wahyu Krisdiarto
Institut Pertanian Stiper Yogyakarta
Agriculture, Biological Sciences & Forestry Engineering

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KENDALI JUMLAH DAN WAKTU BERANGKAT TRUK PENGANGKUT TBS UNTUK MINIMALISASI ANTRIAN DI PABRIK MINYAK KELAPA SAWIT Andreas Wahyu Krisdiarto; Irya Wisnubhadra; Kuncoro H Widodo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 8, No 4 (2019): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1183.351 KB) | DOI: 10.23960/jtep-l.v8i4.251-255

Abstract

Penelitian ini bertujuan mengembangkan model perhitungan yang dapat digunakan sebagai dasar pengelolaan truk pengangkut TBS, terutama pemberangkatannya. Dengan mengendalikan pemberangkatan truk dari kebun berdasarkan kapasitas nyata pabrik secara sistematis, antrian truk di stasiun penerimaan pabrik dapat diminimalisasi. Faktor-faktor yang diperhitungkan adalah kapasitas pabrik, kapasitas produksi kebun, kesediaan truk, dan kondisi jalan perkebunan. Target akhir dari sistem adalah peningkatan mutu TBS sebagai bahan baku minyak kelapa sawit, yaitu kadar asam lemak bebas (ALB) nya dipertahankan kurang dari 5% dan efisiensi operasional alat angkut (meminimalkan waktu antri truk). Dalam penelitian ini dilakukan simulasi waktu dan kapasitas, untuk mensinkronkan pengangkutan TBS dari kebun dengan kapasitas PMKS dari waktu ke waktu. Analisa parameter kinerja angkutan menunjukkan : 1)Berat TBS tidak mempengaruhi waktu muat-angkut dan waktu hilang, namun berkorelasi dengan kecepatan. 2)Kapasitas PMKS berubah-ubah terhadap waktu. Pasokan TBS dari kebun bisa diatur mengikuti pola kapasitas PMKS, dengan formula untuk jumlah truk yang berangkat dari kebun adalah Jt =  (Jl x Kl)/Kt, dan saat berangkat truk adalah: tb = tl – ts. Metode ini dapat menjadi sistem pendukung pengambilan keputusan (decision support system, DSS) dalam sistem pengelolaan transportasi TBS agar optimum. Kata Kunci:   Angkutan kelapa sawit, antrian truk, decision support system
Prediction of Block Production in Oil Palm Plantation Based on Canopy Cover Area and Vegetation Index Using Multispectral Aerial Photographs Tri Haryo Sagoro; Andreas Wahyu Krisdiarto; Hermantoro Hermantoro
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1216-1225

Abstract

This study aims to develop an empirical estimation model of oil palm production through the canopy cover area approach and oil palm vegetation index with multispectral camera technology. The oil palm production estimation method was carried out by comparing the NDVI and NDRE index transformation algorithms. The basis for estimation an area of ± 0.3 ha. The results showed that there is relatively strong relationship between canopy cover area and FFB production (kg) with a coefficient of determination R² = 0.573. The results also revealed that NDVI value and the number of FFB have a fairly strong relationship with R² of 0.488. The NDRE value correlated to the number of FFB at a strong relationship with R² of 0.605. 4) the results of the analysis between NDVI Value and FFB Production (kg) have a strong relationship (r = 0.704) with a coefficient of determination of R² = 0.496; 5) the results of the analysis between NDRE Value and FFB Production (kg) have a strong relationship (r = 0.797) with a coefficient of determination of R² = 0.635; 6) The NDRE value is the independent variable that provides the best response, both to the Number of FFB and FFB Production (kg); 7) the best regression equation obtained for FFB production (kg) is Y(FFB Production (kg)) = 1153.8– (3621.9*NDRE); and 8) the best regression equation obtained for the number of FFB is Y(Number of FFB) = 113.98 – (379.53*NDRE). Keywords: Canopy cover area, Multispectral camera, NDRE, NDVI, Oil palm production.
Pengembangan Conceptual Design Pengelolaan Air di Perkebunan Kelapa Sawit: (Studi Kasus PT XYZ Kalimantan Timur) Susandi Kusuma; Hermantoro Hermantoro; Andreas Wahyu Krisdiarto; Gilang Arya Dipayana; Erik Febriarta; Owen Max
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 3 (2025): Oktober : Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i3.467

Abstract

Oil palm is a leading commodity that makes a major contribution to Indonesia’s economy, yet a significant productivity gap remains between actual and potential yields. A principal cause is suboptimal water management, which leads to flooding during the rainy season and drought in the dry season. This study develops a Conceptual Design (CD) for water management to map existing problems, analyse root causes, formulate improvement measures, and present a macro-level cost estimate for the study site. The research was conducted at an oil palm plantation in East Kalimantan anonymized as “PT XYZ.” The site was selected due to recurrent flooding and a recent change in ownership that limited data availability, making it well-suited for a CD-stage assessment. The objective is to identify water management issues and propose effective recommendations. A quantitative approach integrates primary data from field observations and measurements with secondary data. The analyses cover flood problem assessment, Water Management Zoning (WMZ/ZPA), rainfall analysis, hydrology, hydraulics, improvement proposals, and macro cost estimation. Results indicate that challenges are driven by swampy land conditions and inadequate channel and hydraulic structure capacity. Micro-watershed delineation using DEMNAS identified four ZPAs totalling 479–4,061 ha. Design rainfall was derived from CHIRPS satellite data using a log-normal distribution. Hydrologically, peak discharges range from 3.87–22.58 m³/s for the 2-year return period and 4.46–26.31 m³/s for the 5-year return period. Hydraulically, the proposed dimensions for rivers, outlet drains, carrier drains, and field-edge drains are 4×3×2 m to 9×7×3 m (T=2 years) and 4×3×2 m to 10×8×3 m (T=5 years), while collection and main drains are proposed at 3×2×2 m for both return periods. The total estimated investment for the 5-year design scenario is IDR 27,999,263,000.
Co-Authors Erik Febriarta Gilang Arya Dipayana Hermantoro Hermantoro Irya Wisnubhadra Kuncoro H Widodo Owen Max Susandi Kusuma Tri Haryo Sagoro