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All Journal Jurnal Agroekoteknologi Terapan Journal of Agribusiness and Rural Development (Jurnal Agribisnis dan Pengembangan Pedesaan)
Kumolontang, Wiesje Junnieke Nathsuo
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

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Nutrient Status Of The Soil Layers Of Rice Fields In Taratara Satu District, West Tomohon District Tomohon City Kamagi, Kamagi; Kumolontang, Wiesje Junnieke Nathsuo; Sinolungan, Meldi Tieneke Magdalena; Rondonuwu, Jenny Jeanette
Jurnal Agroekoteknologi Terapan Vol. 5 No. 1 (2024): EDISI JANUARI-JUNI 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v5i1.52821

Abstract

Research in the field aims to determine the nutrient status condition in rice fields' soil layers. The things studied are N, P, K, C-organic, soil pH, and soil texture. The research is a survey method with a composite soil sampling technique at 0, 10, and 20 cm depth. Soil samples were taken at six different rice field points in the Taratara area. The nutrient status of N, P, K, and soil pH were analyzed using the Paddy Soil Test Kit (PUTS). C-organic using the Walkley and black method and for soil texture using the pipette method. The data from the analysis is then arranged in table form and explained descriptively. The research results from the six locations studied showed that: 1). N nutrient status is at low status; 2). P nutrient status is low, medium, and high; 3). K nutrient status is at medium and high status; 4). C – Organic nutrient status is at very low and low status and 5). Soil pH is slightly acidic and 6). Soil texture conditions are in the criteria of loam, silty loam, and silty clay loam. Keywords: Nutrient Status, Paddy Soil Layers. Abstrak Penelitian dilakukan di lapangan bertujuan untuk mengetahui kondisi status hara yang ada di lapisan tanah sawah.  Hal-hal yang diteliti adalah: N, P, K, C-organik, pH tanah dan tekstur tanah.  Metode penelitian adalah metode survei dengan teknik pengambilan sampel tanah perlapisan tanah pada kedalaman 0, 10 dan 20 cm secara komposit. Sampel tanah diambil pada enam titik lahan sawah yang berbeda di wilayah Taratara. Status hara N, P, K dan pH tanah dianalisis menggunakan Perangkat Uji Tanah Sawah (PUTS). C-organik dengan metode Walkley and black dan untuk tekstur tanah dengan metode pipet. Data hasil analisis kemudian disusun dalam bentuk tabel kemudian dijelaskan secara deskriptif. Hasil penelitian dari enam lokasi yang diteliti diperoleh bahwa : 1). Status hara N berada pada status rendah; 2). Status hara P berada pada status rendah, sedang dan tinggi; 3). Status hara K berada pada status sedang dan  tinggi; 4). Status hara C – Organik berada pada status sangat rendah dan rendah dan 5). pH tanah berada pada kondisi agak asam serta 6). Kondisi tekstur tanah berada pada kriteria lempung, lempung berdebu dan lempung liat berdebu. Kata kunci :  Status Hara, Lapisan Tanah Sawah
Uji Lapangan Respon Tanaman Padi Sawah dengan Pupuk NPK Compaction DGW di Kelurahan Taratara Satu, Kecamatan Tomohon Barat, Kota Tomohon Kamagi, Yani Ezrah Bartolomeus; Pioh, Diane Debie; Kawulusan, Rafli Irland; Azizah, Futihatu Rizkiani; Kumolontang, Wiesje Junnieke Nathsuo; Indrasari, Silfi
Journal of Agribusiness and Rural Development (Jurnal Agribisnis dan Pengembangan Pedesaan) Vol. 8 No. 1 (2026): JOURNAL OF AGRIBUSINESS AND RURAL DEVELOPMENT (Jurnal Agribisnis dan Pengembang
Publisher : Jurusan Sosial Ekonomi Pertanian, Fakultas Pertanian Universitas Sam Ratulangi, Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/agrirud.v8i1.66268

Abstract

Rice (Oryza sativa L.) has become one of the main food crops in Indonesia. Rice productivity plays an important role for the supply of the community on a national scale. The application of NPK fertilizer can be a solution. The objective of this study was to determine the response of NPK compound fertilizer “Compaction DGW” on rice yield. The experimental was design using a Randomized Block Design (RBD) that consisted of 3 treatments and 3 replications, on 2,5 m x 4 m (10 m2) plot. The NPK compound fertilizer used for this study was “Compaction DGW”. The treatments included K0 (control), A2B1 (200kg of NPK fertilizer + fertilizer grain size > 1 mm), and A2B2 (200 kg/ha NPK fertilizer + fertilizer grain size < 1 mm). The variable observed was the production of dry grain. The results showed that the application of NPK compound fertilizer “Compaction DGW” with grain size >1mm and <1mm had no significant effect on increasing the dry grain weight. However, NPK compound fertilizer “Compaction DGW” produced higher dry grain weight compared to the control.
Identifikasi Status Hara Nitrogen Fosfor dan Kalium Pada Lahan yang Ditanami Tomat di Kecamatan Langowan Barat Kabupaten Minahasa Kumolontang, Wiesje Junnieke Nathsuo; Kamagi, Yani Ezrah Bartolomeus; Sinolungan, Meldi Tineke Magdalena; Kawulusan, Rafli Irland
Journal of Agribusiness and Rural Development (Jurnal Agribisnis dan Pengembangan Pedesaan) Vol. 8 No. 1 (2026): JOURNAL OF AGRIBUSINESS AND RURAL DEVELOPMENT (Jurnal Agribisnis dan Pengembang
Publisher : Jurusan Sosial Ekonomi Pertanian, Fakultas Pertanian Universitas Sam Ratulangi, Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/agrirud.v8i1.66269

Abstract

The purpose of this study was to determine the availability status of N, P, and K nutrients in tomato-planted land, which serves as the basis for fertilizer recommendations for tomato crops. The research was carried out over 8 months. The tools used included shovels and laboratory equipment for soil analysis. The materials used were dryland soil and chemical reagents according to the methods of soil analysis for N, P, and K. The research method employed a survey approach with composite soil sampling at 6 locations, adjusted to the actual soil conditions in the field. Condition 1: Soil that had been prepared and was ready for planting. Condition 2: Soil planted with tomatoes aged 1 month. Condition 3: Soil that had just been harvested, with tomato plants aged 3 months. From each soil condition, 3 soil samples were taken, resulting in a total of 9 samples. The research duration was 8 months, from preparation to the final report. Soil samples collected in the field were analyzed in the laboratory to obtain quantitative results. Nitrogen content was analyzed using the Kjeldahl method; available Phosphorus content was analyzed using the Bray I method; available Potassium content was analyzed using the Bray I method. The data obtained from soil analysis showed that Nitrogen levels were classified as moderate, available Phosphorus levels were moderate, and Potassium was sufficiently available for plant needs.
Identifikasi Unsur Hara Esensial Pada Tanah Pertanaman Nilam (Pogostemon cablin benth) Di Desa Kolongan-Atas Dua Kecamatan Sonder Pioh, Diane Deibij; Kamagi, Yani Ezrah Bartolomeus; Kumolontang, Wiesje Junnieke Nathsuo
Journal of Agribusiness and Rural Development (Jurnal Agribisnis dan Pengembangan Pedesaan) Vol. 8 No. 1 (2026): JOURNAL OF AGRIBUSINESS AND RURAL DEVELOPMENT (Jurnal Agribisnis dan Pengembang
Publisher : Jurusan Sosial Ekonomi Pertanian, Fakultas Pertanian Universitas Sam Ratulangi, Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/agrirud.v8i1.66574

Abstract

Patchouli (Pogostemon cablin benth) is a tropical plant that is currently widely cultivated due to its important role in the essential oil industry or patchouli. Indonesia is one of the world's main producers of essential oils. It is estimated that around 9 to 12 of the total 70 types of essential oils produced come from Indonesia, making essential oils one of the economic assets with great potential for the Indonesian economy. The purpose of this study was to identify essential nutrients in patchouli planting soil in Kolongan Atas Dua Village, Sonder District, Minahasa. This village has seen an increase in patchouli farming since 2022. To increase patchouli production, soil fertility needs to be deepened. The method used was a survey method by taking soil samples from land that was not planted with patchouli, land that had just been planted with patchouli, land that had been harvested twice. Furthermore, quantitative soil analysis used laboratory soil analysis methods, namely the N Keldjal method, P Bray K Spectrometer, C-organic Walkey and Black and pH using a pH meter. Research results indicate that the pH ranges from 6.5 to 6.6, with a slightly acidic profile. N, P, K, and organic matter are moderate to low. Considering the soil conditions in the patchouli plantations in Kolongan Atas 2 village, fertilization is necessary to maintain soil quality.
Co-Authors Azizah, Futihatu Rizkiani Diane Deibij Pioh Indrasari, Silfi Kamagi, Kamagi Kamagi, Yani Ezrah Bartolomeus Kawulusan, Rafli Irland Pioh, Diane Debie Rondonuwu, Jenny Jeanette Sinolungan, Meldi Tieneke Magdalena Sinolungan, Meldi Tineke Magdalena