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ANALISIS KAPASITAS INFILTRASI LAHAN PERTANIAN DI SUB DAS KALISARI, MALANG Nita, Istika; Ayuningtyas, Priska; Prijono, Sugeng; Putra, Aditya Nugraha
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.13

Watershed hydrological conditions can decrease due to changes in land use and inappropriate land management. One of the watershed functions is providing water availability for agricultural areas. Along with the increasing area of agricultural land, there is often the issue of water availability, which has implications for the low opportunity for plants to use it. Infiltration is the initial process of water entry into the soil, so the availability of water is greatly influenced by this process. Agricultural land in the Kalisari sub-watershed is dry land and is dominated by dry fields. The area of the Kalisari sub-watershed has an area of ±5,000 ha divided into 5 land uses, namely mahogany-coffee agroforestry, pine-coffee agroforestry, scrub, dry land, and paddy fields. Infiltration measurements were spread over 43 measurement points, with the observed parameters being texture, bulk density, porosity, permeability, aggregate stability, and soil organic matter. The infiltration rate for all land uses is very fast (>25 cm hour-1), ranging from 12.00 cm hour-1 to 74.37 cm hour-1. The infiltration rate for all land uses was not significantly different; this was in line with soil properties, which included texture, bulk density (0.61-1.02 g cm-3), porosity (51.02-68.06%), permeability (4.88–6.79 cm hour-1), aggregate stability (2.11–3.34 mm), and organic matter (1.61-4.06%). However, the infiltration rate at the study site had a significant relationship with clay (r = -0.77), sand (r = 0.64), silt (r = 0.52) and soil organic matter (r = 0.48).

KAJIAN KESUBURAN DAN KESESUAIAN LAHAN BERBASIS KOMODITAS DI KECAMATAN TUGU DAN KARANGAN KABUPATEN TRENGGALEK Arifin, Syamsul; Samudra, Ferdianto Budi; Utami, Kartika Budi; Putra, Aditya Nugraha; Setiawan, Adi; Riza, Sativandi; Andhika, Yosi; Maulidiyah, Nurul
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 2 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.2.18

Drought is a major challenge in developing the integrated farming system (IFS) in Trenggalek Regency, making it one of the factors contributing to the construction of the Tugu Dam. Additionally, in developing the IFS area, it is necessary to assess soil fertility and land suitability evaluation for food and livestock feed commodities. The research was conducted in Tugu and Karangan Sub-Districts, Trenggalek Regency by conducting spatial analysis and soil survey at locations potentially affected by dam construction and soil samples analysis at the laboratory. The results of this study found that the level of soil fertility at the research site was included in the low to very low class with characteristics of acidic pH, very low C-organic, very low total N and low base saturation. While the results of the actual land suitability evaluation of rice, maize, and elephant grass showed the land suitability class S3 with limiting factors of C-organic, pH, total N, P2O5, and base saturation.

ANALISIS KELAYAKAN DETEKSI CEPAT PENYAKIT HAWAR DAUN TANAMAN KENTANG PADA FASE AKHIR MENGGUNAKAN UAV: LATE BLIGHT FEASIBILITY ANALYSIS IN POTATOES USING UAV FOR QUICK DETECTION IN LATE-STAGE Nita, Istika; Putra, Aditya Nugraha; Sektiono, Antok Wahyu; Riza, Sativandi; Wicaksono, Kurniawan Sigit; Sholikah, Dinna Hadi; Kristiawati, Wanda; Rahma, Melati Julia
Jurnal HPT (Hama Penyakit Tumbuhan) Vol. 11 No. 3 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jurnalhpt.2023.011.3.2

Produksi kentang di Indonesia berkontribusi + 0,3% dari total produksi dunia sebesar + 388.191.000 ton. Kentang merupakan komoditas hortikultura esensial di Indonesia dengan permintaan sekitar 2,82 kg ha-1 kapita-1 pada tahun 2021. Saat ini terjadi defisit ketersediaan kentang yang mencapai 4.845.910 ton yang diperparah dengan terus menurunnya produksi kentang nasional (1.164.738 ton). Penyakit hawar daun (Phytophthora infestans) merupakan salah satu masalah utama penyebab penurunan produksi kentang (kehilangan hasil antara 10-100%). Penyebaran penyakit hawar daun sulit untuk diidentifikasi secara real time, sehingga diperlukan teknologi tepat guna yang dapat memberikan informasi secara cepat dan akurat. Penelitian ini bertujuan untuk melihat bagaimana foto udara (dari UAV) memperkirakan sebaran penyakit hawar daun pada kentang. Foto UAV diubah menjadi indeks NDVI, RDVI, SAVI, SR, ARVI-2, DVI, IPVI, dan GCI. Data pengukuran indeks penyakit hawar daun akan dikorelasikan dan dipilih yang terbaik untuk mendapatkan rumus regresi distribusi spasial penyakit hawar daun. Lokasi penelitian berada di Kecamatan Bumiaji, Kota Batu, Indonesia. Titik pengamatan di lapangan sebanyak 50 titik pengamatan untuk setiap luasan 3 Ha. Hasil penelitian menunjukkan bahwa semua indeks berkorelasi positif (> r tabel 0,34). Korelasi tertinggi pada estimasi model dari indeks NDVI (0,72). Kondisi ini sejalan dengan koefisien regresi (R2) pada NDVI yang mencapai 0,51 dengan persamaan y = 20,779 * (angka indeks NDVI) + 49,146. Analisis t-paired menunjukkan bahwa t hitung pada model (-1,10) ada pada grafik t-tabel (2,16), dan ini menegaskan bahwa rumus tersebut dapat diandalkan untuk digunakan.

Stay on trails: Detrimental effects of recreational activities on soil compaction and infiltration Saputra, Danny Dwi; Putra, Aditya Nugraha; Sari, Rika Ratna; Ishaq, Rizki Maulana; Hadiwijoyo, Erekso; Hadi, Maruf; Suprayogo, Didik
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.114.6213

Bromo Tengger Semeru National Park (BTS-NP) in East Java, Indonesia showcases a breathtaking volcanic landscape and cultural allure, drawing hundreds of thousands of domestic and international visitors. Recreational activities involving human and animal trampling and motorized-vehicle traffic caused soil disturbance along their networks of paths, trails, or roads, potentially having a detrimental long-term effect on the tourism industry and environmental services provided by the national parks. However, the extent of the impact of these disturbances on soil properties remains unclear. This study assessed the impact of different disturbance intensities, consisting of undisturbed locations as a control (zone 1), low to medium- (zone 2), and high- (zone 3) disturbance intensities on five different BTS-NP tourism hotspots, including Entrance Wonokitri (EW), Whispering Sand (WS), Parking Temple (PT), Teletubbies Hill (TH), and Entrance Bromo Stairs (EB), on soil properties, including soil compaction represented by soil penetration resistance, and soil infiltration. This study revealed that the higher severity impact of recreational activities on soil compaction was parallel with higher disturbance intensity, particularly in EW and TH. In these particular locations, higher soil compaction is significantly linked to lower soil infiltration, thus needing extra attention and protection. Meanwhile, in WS, PT, and EB, soil infiltration was more controlled by the establishment of a cemented topsoil layer consisting of mixed sand, sulfur, and water. Better management strategies, such as the use of proper trails and road infrastructures, particularly on EW and TH, might be relevant to minimize the impact of recreational activities on these ecologically, economically, and culturally important areas.

Invetarisasi Karakteristik Data Tanah Berbasis Formulir Digital dalam Kegiatan Praktikum Survei Tanah Andhika, Yosi; Riza, Sativandi; Putra, Aditya Nugraha
Jurnal Pengelolaan Laboratorium Pendidikan Vol.7, No.1, Januari 2025
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.7.1.41-48

Kegiatan praktikum survei tanah menggunakan metode konvensional dalam pengumpulan data, yaitu dengan mencatat data secara manual di lapangan. Pengamatan lapangan yang dicatat diantaranya fisiografi lahan dan morfologi tanah. Data yang telah dikumpulkan kemudian diolah dan disimpan dalam bentuk database. Database mampu memuat data dalam bentuk tabel, serta dapat ditambahkan dalam format lainnya, seperti gambar atau file dokumen. Namun, metode konvensional ini memiliki beberapa permasalahan, yaitu data yang dikumpulkan rentan terhadap kesalahan, proses pengolahan data memakan waktu lama, dan analisis data tidak dapat dilakukan secara langsung. ESRI Survey123 salah satu dari aplikasi mobile yang dapat digunakan untuk mengumpulkan data di lapangan secara real time. Data yang dikumpulkan dapat langsung diakses oleh analisis data di laboratorium, sehingga proses analisis data dapat dilakukan lebih cepat dan akurat. Dengan pemanfaatan ESRI Survey123, data yang dikumpulkan lebih akurat dan proses pengolahan data lebih cepat. Hal ini dapat meningkatkan efisiensi dan efektivitas kegiatan survei tanah. Sehingga perlu dilakukan pembuatan form Survey123 yang disesuaikan dengan daftar fisiografi lahan dan morfologi tanah, serta data yang sudah di himpun dari lapangan mampu dibuat dalam bentuk database

Response Macronutrient Content of Saline-Resistant Paddy to the Saline Source Distance Putra, Aditya Nugraha; Adelyanti, Martiana; Sitorus, Albert Fernando; Hakim, Qoid Luqmanul; Rahma, Melati Julia; Nita, Istika; Sudarto, Sudarto; Fibrianingtyas, Alia
JOURNAL OF TROPICAL SOILS Vol. 26 No. 2: May 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i2.63-74

The impact of salinity on paddy production in Indonesia was pronounced with an average decline of 6.83% (2015-2019). Salinity interferes with macronutrients' absorption into plants, causing stunted growth (salinity contributed to a 42% decrease in paddy production). One solution to solve the salinity problem in paddy is to use saline varieties. There were very few studies on macronutrient content analysis in resistant varieties response to the salinity source's distance. Â This research conducted in Jabon Sidoarjo, Indonesia, aims to see the macronutrient response and plant growth to the saline source's distance. This research was conducted in Jabon District, Sidoarjo Regency, using two transects with a length of 2 km and 3.4 km, respectively. The distance between the research location and the salinity source was 10.65 km. Â The survey used a free grid to adjust paddy fields' location and the presence of resistant varieties. The results showed that the closer to the salinity source, the salinity indicators consisting of Electrical Conductivity, Sodium Adsorption Ratio, Exchangeable Sodium Percentage, and pH H2O would increase. The increase in salinity then affects the decrease in macronutrients (Nitrogen, Phosphor, and Kalium) in plants. However, tillers and leaves (length and number) were unaffected by high salinity levels in the soil.

KOMUNIKASI KRISIS DI ERA DIGITAL STUDI KASUS PENANGANAN KRISIS REPUTASI PADA BRAND X DI MEDIA SOSIAL Putra, Aditya Nugraha; Puspitasari, Siti
Jurnal Media dan Komunikasi (MEKAS) Vol. 2 No. 1 (2024): Jurnal Media dan Komunikasi Edisi November
Publisher : LodDos Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini membahas komunikasi krisis di era digital dengan fokus pada strategi penanganan krisis reputasi yang dilakukan oleh Brand X di media sosial. Masalah yang dikaji adalah bagaimana Brand X merespons dan mengelola krisis reputasi agar dapat meminimalkan dampak negatif terhadap citra merek. Tujuan penelitian ini adalah untuk menganalisis efektivitas strategi komunikasi krisis yang diterapkan oleh Brand X dalam menghadapi krisis reputasi di media sosial. Penelitian ini menggunakan metode studi kasus dengan pendekatan kualitatif, menganalisis konten unggahan di media sosial, respons publik, serta strategi komunikasi yang diterapkan oleh Brand X selama krisis. Data dikumpulkan melalui observasi media sosial dan wawancara dengan tim komunikasi perusahaan serta analisis sentimen publik. Teknik analisis yang digunakan adalah analisis wacana dan analisis sentimen untuk memahami pola komunikasi serta dampaknya terhadap persepsi publik. Hasil penelitian kemudian dibandingkan dengan teori komunikasi krisis untuk mengevaluasi efektivitas strategi yang diterapkan. Hasil penelitian menunjukkan bahwa transparansi, respons cepat, serta penggunaan narasi yang tepat memainkan peran penting dalam meredakan krisis reputasi di media sosial. Brand X berhasil mengurangi dampak negatif dengan strategi komunikasi yang adaptif dan berbasis data. Kesimpulan utama dari penelitian ini adalah bahwa pendekatan komunikasi krisis yang responsif dan berbasis engagement dapat membantu pemulihan reputasi merek, dengan rekomendasi untuk perusahaan agar terus meningkatkan monitoring media sosial dan strategi komunikasi berbasis data dalam menghadapi krisis di masa depan.

Community Participation in Forest Conservation as A Forest Fire Mitigation and Adaptation on The Arjuno Mountain Riza, Sativandi; Fata, Yulia Amirul; Arifin, Syamsul; Hadiwijoyo, Erekso; Hidayatullah, Rifqi Rahmat; Ishaq, Rizki Maulana; Lestari, Nina Dwi; Putra, Aditya Nugraha; Lestariningsih, Iva Dewi; Suprayogo, Didik
HABITAT Vol. 34 No. 3 (2023): December
Publisher : Department of Social Economy, Faculty of Agriculture , University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.habitat.2023.034.3.29

Participatory conservation is an activity to mitigate and adapt to forest and land fires through field farmer school (FFS) activity which forest farmer groups (FFG), non-governmental organizations (NGOs), and academics attend. This research aims to provide an innovative approach to conservation activities with the community, especially on Mount Arjuno, which often experiences forest fires. The results show that local stakeholders and authorities must support community participation in forest conservation. This study shows that FFS (Field Farmer School) activities can facilitate the community in identifying problems and generating ideas for conservation activities through the agroforestry system, mitigation and adaptation of forest and land fires, and edu-ecotourism. Conservation designs and community participation strategic plans are outputs of forest fire mitigation and adaptation activities. The FFS as the methodology used is adequate for knowing what the farmer needs relating to conservation that stakeholders will program. Moreover, generating the conservation activity must be combined with activities to increase the FFG income. So, the FFG will have good welfare.

Advanced Modeling of Potato Productivity Using Soil Physical Properties and Vegetation Index Transformations Sudarto, Sudarto; Putra, Aditya Nugraha; Fauziah, Dwi Christina; Nugroho, Agung; Suryoprojo, Adithya Riefanto; Prasetya, Novandi Rizky; Sugiarto, Michelle Talisia
JOURNAL OF TROPICAL SOILS Vol. 30 No. 3: September 2025 (in Progress)
Publisher : UNIVERSITY OF LAMPUNG

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Global potato production reached approximately 383 million metric tons in 2025, with Indonesia contributing around 1.22 million metric tons (0.32% of global output). However, the sustainability of Indonesiaâ€™s potato production is increasingly threatened by soil quality degradation in key growing regions. Existing predictive studies have largely focused on soil physical properties, with limited incorporation of remote sensing technologies. This study investigates the potential of Unmanned Aerial Vehicle (UAV) as a high-resolution, non-invasive tool to estimate potato yield through vegetation index transformations. Utilizing a split-plot experimental design across elevation gradients, we integrated soil physical properties with UAV-derived vegetation indicesâ€”Visible Atmospherically Resistant Index (VARI), Green Leaf Index (GLI), and Normalized Green-Red Difference Index (NGRDI). Results reveal that Total Nitrogen (TN), Base Saturation, and Bulk Density significantly influence yield variability, and can be accurately estimated using NGRDI, GLI, and a modified GLI (GLI CS), respectively. A multiple linear regression model was developed to predict potato yield: y = 24.22 + 7.26(NGRDI) + 9.87(GLI) + 28.42(GLI CS). This research demonstrates the efficacy of UAV-based spectral analysis in enhancing yield prediction models, offering a scalable and precise approach for sustainable potato cultivation. Future work should incorporate machine learning to improve model robustness and assess applicability across varied agro-ecological contexts.

ANALISIS KAPASITAS INFILTRASI LAHAN PERTANIAN DI SUB DAS KALISARI, MALANG Nita, Istika; Ayuningtyas, Priska; Prijono, Sugeng; Putra, Aditya Nugraha
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 1 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.1.13

Watershed hydrological conditions can decrease due to changes in land use and inappropriate land management. One of the watershed functions is providing water availability for agricultural areas. Along with the increasing area of agricultural land, there is often the issue of water availability, which has implications for the low opportunity for plants to use it. Infiltration is the initial process of water entry into the soil, so the availability of water is greatly influenced by this process. Agricultural land in the Kalisari sub-watershed is dry land and is dominated by dry fields. The area of the Kalisari sub-watershed has an area of ±5,000 ha divided into 5 land uses, namely mahogany-coffee agroforestry, pine-coffee agroforestry, scrub, dry land, and paddy fields. Infiltration measurements were spread over 43 measurement points, with the observed parameters being texture, bulk density, porosity, permeability, aggregate stability, and soil organic matter. The infiltration rate for all land uses is very fast (>25 cm hour-1), ranging from 12.00 cm hour-1 to 74.37 cm hour-1. The infiltration rate for all land uses was not significantly different; this was in line with soil properties, which included texture, bulk density (0.61-1.02 g cm-3), porosity (51.02-68.06%), permeability (4.88–6.79 cm hour-1), aggregate stability (2.11–3.34 mm), and organic matter (1.61-4.06%). However, the infiltration rate at the study site had a significant relationship with clay (r = -0.77), sand (r = 0.64), silt (r = 0.52) and soil organic matter (r = 0.48).

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