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All Journal SOSCIED Griya Journal of Mathematics Education and Application
Meyni Novela Runtu
Universitas Negeri Manado
Education Mathematics Social Sciences

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PEMAKSIMALAN PROFIT PERTANIAN MELALUI PROGRAM LINEAR : STUDI KASUS PADA PERTANIAN PADI DAN JAGUNG DI KELURAHAN TARA-TARA, KOTA TOMOHON Christari Lois Palit; Alycia Nikita Poluan; Breisi Maria Luntungan; Meyni Novela Runtu; Miranda Yuliana Sondakh; Tesalonika Junira Mogi; Virginia Sarah Kaparang
SOSCIED Vol 8 No 2 (2025): SOSCIED - November 2025
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v8i2.1078

Abstract

Farmers in Tara-Tara Village, Tomohon City, still face difficulties in increasing their income due to limited production inputs, such as land, fertilizer, pesticides, and seeds. Decision-making based solely on experience often leads to inappropriate resource utilization. This study aims to determine the most profitable combination of rice and corn planting areas while still taking into account the limitations of available inputs. A quantitative approach based on Linear Programming was used in the analysis, with data collected through interviews and field observations. Calculations were performed using the Simplex method using QM for Windows software. The results showed that the optimal allocation was obtained at a planting area of ??0.97 units for rice and 1.53 units for corn, resulting in an estimated profit of Rp 12,615,150 per planting season. From the analysis of slack variables, it was found that fertilizer and seeds were the most limiting constraints on increasing production, while land still has room for utilization. Based on these findings, this study recommends that farmers continue to focus their efforts on rice and corn commodities and increase the availability of fertilizer to fully optimize the land
Penerapan Metode North West Corner dalam Distribusi Air Galon pada Depot Air Isi Ulang di Tondano Meyni Novela Runtu; Indah Chairun Nisa
Griya Journal of Mathematics Education and Application Vol. 6 No. 2 (2026): Juni 2026
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v6i2.1173

Abstract

Distribution of gallon water is one of the important activities in the operation of refill water depots because it isi directly related to fulfilling customer needs. An irregular distribution process can result in higher shipping costs and less efficient vehicle use. This research was conducted at the Om Nyong Refill Water Depot and the Gloria Water Depot in the Tondano area with the aim of determining the allocation of gallon water distribution using the North West Corner (NWC) method. The method used in this research is a quantitative method with an operations research approach to the transportation model. Research data was obtained through direct observation and interviews with depot owners. The data used included the number of galllons supplied, the number of customer requests, and distribution costs to each destination. The research results showed that the North West Corner (NWC) method can assist in allocasting gallon water distribution according to available supply and demand capacity. Based on the calculation results, the distribution costs for the Om Nyong Refill Water Depot Rp 1,612,000 and the Gloria Water Depot Rp 352,000, bringing the total distribution costs to Rp 1,964,000/week. This method makes the distribution process more organized and makes it easier for the depot to determine the number of deliveries to customers. Distribusi air galon merupakan salah satu kegiatan penting dalam operasional depot air isi ulang karena berhubungan langsung dengan pemenuhan kebutuhan pelanggan. Proses distribusi yang kurang teratur dapat menyebabkan biaya pengiriman menjadi lebih besar dan penggunaan kendaraan menjadi kurang efisien. Penelitian ini dilakukan pada Depot Air Isi Ulang Om Nyong dan Depot Air Gloria yang berada di wilayah Tondano dengan tujuan untuk mengetahui pengalokasian distribusi air galon menggunakan metode North West Corner (NWC). Metode yang digunakan dalam penelitian ini adalah metode kuantitatif dengan pendekatan riset operasi pada model transportasi. Data penelitian diperoleh melalui observasi dan wawancara langsung dengan pemilik depot. Data yang digunakan meliputi jumlah pasokan galon, junlah permintaan pelanggan, dan biaya distribusi ke setiap lokasi tujuan. Hasil penelitian menunjukkan bahwa metode North West Corner (NWC) mampu membantu proses pengalokasian distribusi air galon sesuai kapasitas supply dan demand yang tersedia. Berdasarkan hasil perhitungan diperoleh biaya distribusi Depot Air Isi Ulang Om Nyong sebesar Rp 1.612.000 dan Depot Air Gloria sebesar Rp 352.000, sehingga total keseluruhan biaya distribusi mencapai Rp 1.964.00/minggu. Dengan adanya metode ini, proses distribusi menjadi lebih teratur dan mempermudah depot dalam menentukan jumlah pengiriman kepada pelanggan.
Co-Authors Alycia Nikita Poluan Breisi Maria Luntungan Christari Lois Palit Indah Chairun Nisa Miranda Yuliana Sondakh Tesalonika Junira Mogi Virginia Sarah Kaparang