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Sandra E. Pakasi
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Sam Ratulangi
Agriculture, Biological Sciences & Forestry

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PENGARUH PEMBERIAN PUPUK ORGANIK CAIR (POC) REBUNG BAMBU TERHADAP PERTUMBUHAN TANAMAN SAWI HIJAU: The Effect of Applying Liquid Organic Fertilizer (POC) from Bamboo Shoots on The Growth of Green Mustard Plants Mulya Dwiyanti; Diane D. Pioh; Deffly A.S. Turang; Sandra E. Pakasi; Wiesje J.N. Kumolontang; Jemmy Najoan
EUGENIA Vol. 32 No. 2 (2026): Eugenia
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/9zcwps18

Abstract

Mustard greens are a vegetable that thrives in soil rich in organic matter and sufficient moisture. Fertilization is essential for mustard greens. Bamboo shoots are a vegetable that can be used as a raw material for organic fertilizer. Liquid organic fertilizer from bamboo shoots contains gibberellins and a high organic carbon content, which can stimulate plant growth. This study aimed to determine the effect of applying liquid organic fertilizer (POC) from bamboo shoots on the growth of mustard greens. This research was conducted at the green house of the Faculty of Agriculture, Sam Ratulangi University, Manado. The study lasted for two months, from September to October 2025. The design used in this study was a completely randomized design (RAL) consisting of five treatments and four replications, resulting in 20 experimental units. The treatments given included P0: (Control), P1: (100 ml POC + 1 L water), P2: (200 ml POC + 1 L water), P3: (300 ml POC + 1 L water), P4: (400 ml POC + 1 L water). The results obtained from the administration of bamboo shoot POC significantly affected the growth of green mustard greens from plant height, number of leaves, fresh weight, root weight. The right POC concentration was shown in the P1 treatment (100 ml POC + 1 L water) with a plant height of 31.7 cm, number of leaves 14.75 strands, fresh weight 60.25 grams, and root weight 5.75 grams. Keywords: bamboo shoot, growth, liquid organic fertilizer, mustard greens, yield
PEMANFAATAN TEKNOLOGI DRONE DALAM INVENTARISASI TUTUPAN LAHAN DI DESA TULAP KECAMATAN KOMBI: Utilization of Drone Technology in Land Cover Inventory in Tulap Village, Kombi District Marciano Tambuwun; Sandra E. Pakasi; Jackson Fraky Watung; Jelie Viekson Porong; Melisa Pascawati Todingan; Wawan Nurmawan; Sofia Wantasen
EUGENIA Vol. 32 No. 2 (2026): Eugenia
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/gz884e92

Abstract

This study aimed to inventory land cover in the upper Kora-Kora watershed in Tulap Village, Kombi District, using Unmanned Aerial Vehicle (UAV) drone technology. Field data acquisition was conducted using a DJI Mavic 2 Pro drone flown at an altitude of 250 meters, yielding aerial imagery with a very high spatial resolution of 6 cm/pixel. The imagery data was processed using Agisoft Metashape photogrammetry software and analyzed through visual interpretation and manual digitization using ArcGIS 10.8 software. The inventory identified seven land cover classes: plantations covering 27.59 hectares (88.71%), shrubland (1.21 ha), open land (1.10 ha), buildings/settlements (1.04 ha), roads (1,727 m), footpaths (1,178 m), and a river (930 m). The dominance of plantation cover aligns with the primary characteristics of an agrarian village community. The use of drones proved highly efficient, rapid, and accurate in providing up-to-date geospatial data. The resulting map serves as a valuable resource for the village government in spatial planning, natural resource management, and the prioritization of conservation areas. Keywords: drone, inventory, land cover, photogrammetry, sofware
Co-Authors Deffly A.S. Turang Diane D. Pioh Jackson Fraky Watung Jelie Viekson Porong Jemmy Najoan Marciano Tambuwun Melisa Pascawati Todingan Mulya Dwiyanti Sofia Wantasen Wawan Nurmawan Wiesje J.N. Kumolontang