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All Journal Jurnal Agroekoteknologi Terapan Journal of Agribusiness and Rural Development (Jurnal Agribisnis dan Pengembangan Pedesaan)
Kamagi, Yani Ezrah Bartolomeus
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

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Study Of Soil Erodibility Using The Erickson Method In The Downstream Of The Kombot Das, Pinolosian District, Bolaang Mongondow Selatan Regency Tindage, Jorly Richarzon; Titah, Tilda; Kamagi, Yani Ezrah Bartolomeus
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.v5i1.55997

Abstract

Watershed is a plain area bounded by hills or mountains that serves to store, accommodate, and drain water from upstream to downstream of the river. Watersheds (DAS) are part of the unity of resources where humans actively use them. In this study, the aspect studied was the condition of the soil texture which aims to determine the erodibility (K) of the soil around the Kombot watershed. This study used survey methods and laboratory analysis to obtain data on soil texture and erodibility (K).The results showed that: 1) The soil erodibility value was very high in the soil sample (1) with a K value of 0.60 at a slope of 0-400 with land use namely moor while soil texture class was dusty clay, 2) The soil erodibility value of low value is found in the soil sample (13) with a K value of 0.17 on slopes 9-140 with plantation land use while the soil texture class is sandy loam, 3) soil texture is a factor that affects the value of soil erodibility (K), because soil texture has sensitivity to erosion. Key words: Kombot watershed, soil erodibility, soil texture Abstrak Daerah Aliran Sungai (DAS) merupakan suatu wilayah dataran yang dibatasi oleh perbukitan atau pegunungan yang berfungsi sebagai tempat menampung, menampung, dan mengalirkan air dari hulu ke hilir sungai. Daerah Aliran Sungai (DAS) merupakan bagian dari kesatuan sumber daya yang dimanfaatkan secara aktif oleh manusia. Dalam penelitian ini aspek yang diteliti adalah kondisi tekstur tanah yang bertujuan untuk mengetahui erodibilitas (K) tanah di sekitar DAS Kombot. Penelitian ini menggunakan metode survei dan analisis laboratorium untuk memperoleh data tekstur dan erodibilitas tanah (K). Hasil penelitian menunjukkan bahwa: 1) Nilai erodibilitas tanah pada sampel tanah sangat tinggi (1) dengan nilai K 0,60 pada kemiringan 0-400 dengan penggunaan lahan yaitu tegalan sedangkan kelas tekstur tanah lempung berdebu, 2) Nilai erodibilitas tanah yang bernilai rendah terdapat pada contoh tanah (13) dengan nilai K sebesar 0,17 pada lereng 9-140 dengan penggunaan lahan perkebunan sedangkan kelas tekstur tanahnya adalah lempung berpasir, 3) tekstur tanah merupakan faktor yang mempengaruhi nilai erodibilitas tanah (K), karena tekstur tanah mempunyai kepekaan terhadap erosi. Kata kunci: DAS Kombot, Erodibilitas Tanah, Tekstur Tanah
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.
Co-Authors Azizah, Futihatu Rizkiani Indrasari, Silfi Kawulusan, Rafli Irland Kumolontang, Wiesje Junnieke Nathsuo Pioh, Diane Debie Sinolungan, Meldi Tineke Magdalena Tilda Titah Tindage, Jorly Richarzon