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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Indonesian Journal of Geography Jurnal Kesehatan Lingkungan indonesia Journal of Tropical Soils Berkala Ilmiah Pertanian Plumula : Berkala Ilmiah Agroteknologi JTSL (Jurnal Tanah dan Sumberdaya Lahan) AGRIVITA, Journal of Agricultural Science Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Pengabdian Magister Pendidikan IPA Jurnal Teknologi Pertanian Andalas INTEGRITAS : Jurnal Pengabdian Journal La Lifesci Media Pertanian Pancaran Pendidikan
Yagus Wijayanto
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Jember, Jl. Kalimantan No.37 , Kabupaten Jember
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Spatial Analysis of Soil Available Potassium and Plant Brix Content for Site Specific Nutrient Management in Sugarcane Yagus Wijayanto; Moch. Reza Wahyu Abdilah; Ika Purnamasari; Tri Wahyu Saputra
AGRIVITA, Journal of Agricultural Science Vol 44, No 3 (2022)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v44i3.3876

Abstract

There has been a tendency of decreasing sugarcane productivity (Saccharum officinarum Linn) in Indonesia due to poor soil available potassium. There has also been evidence that available soil potassium relates directly to soil condition. For this reason, the management of sugarcane engaging Site Specific Nutrient Management (SSNM) must be pursued. The first and most important stage in SSNM is assessing variability, which can be used to recommend particular fertilizer. This research’s main aim is to assess the variability of Potassium and Brix content for uses in the Potassium (K) fertilizer recommendation. The methodology used in this research is collecting data in the field, analyzing with Geographical Information Systems (GIS) using Kriging techniques, and developing a site-specific K prescription map. The results show that (1) spatial analysis assisted in developing a prescription map for K management in sugarcane; (2) spatially, the area can be classified into three classes (low, medium, and high) of K with the recommendation of 300 kg/ha (low), 200 kg/ha (medium) and 0 kg/ha (high) respectively. The results suggest that spatial analysis of soil available potassium and Brix content can provide a whole and specific picture of the area studied, which is beneficial for SSNM.
Using Geostatistics for Spatial Analysis of Soil Moisture Content, Electrical Conductivity, and pH at Paddy Fields Yagus Wijayanto; Muhammad Aldian Dwi Kustianto; Subhan Arif Budiman; Ika Purnamasari
JOURNAL OF TROPICAL SOILS Vol 28, No 2: May 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i2.47-56

Abstract

Soil is dynamic due to various internal and external processes exerted on the soil, resulting in unique soil characteristics in space in short and long distances. Geostatistics (kriging) is the method of quantifying the spatial variation of soil properties. This research was mainly aimed at applying geostatistics to quantify and interpolate the spatial dependence and structure of three soil properties, namely pH, EC, and Soil Moisture Content (SMC) in a small area. This research was conducted on paddy fields in Mlandingan Kulon Village, Situbondo Regency. Sampling was conducted on an area of   9.2 ha with 31 sample points. Normal data distribution was found for pH and EC, whereas this was not the case for SMC. The results of the analysis showed that most of the pH values   were alkaline (>8), EC values were non-saline (<2 mm/cm), and SMC was in the low category (<20%). The results show that for three soil properties, weak dependencies were observed. The values of Root Mean Square Error (RMSE)  confirmed that kriging with exponential was better compared to the spherical model, resulting in the RMSE of 0.546 (pH), 0.041 (EC), and 1.512 (SMC).
RAPID MEASUREMENT SYSTEM HASIL FERMENTASI PUPUK ORGANIK PADAT (POP) BERBASIS NPK SENSOR DAN MODEL REGRESI LINIER Tri Wahyu Saputra; Yagus Wijayanto; Arthur Frans Cesar Regar; Suci Ristiyana; Ika Purnamasari
Jurnal Teknologi Pertanian Andalas Vol 27, No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.27.1.94-103.2023

Abstract

Kualitas pupuk organik padat (POP) perlu diperhatikan agar efektif saat diaplikasikan dengan indikator utama berupa unsur N (Nitrogen), P (Fosfor), K (Kalium), dan C-Organik. Tujuan penelitian ini adalah mengembangkan sistem pengukuran pada indikator kualitas pupuk organik padat (POP) sehingga dapat memudahkan analisis kandungan pupuk dan meringankan  faktor tenaga maupun biaya. Penelitian ini dimulai dengan membuat pupuk organik dari bahan limbah bekas maggot dan bekas pupa Black Soldier Fly (BSF) yang dibagi menjadi 5 variasi dan penggunaan dekomposer Trichoderma sp. dan EM4 yang dibagi menjadi 2 variasi. Selanjutnya, mengukur nilai  N, P, K menggunakan NPK Sensor dan analisis laboratorium. Data hasil laboratorium akan dianalisis menggunakan Analysis of Variance (ANOVA) dan Duncan Multiple Range Test (DMRT). Hasil pembacaan sensor akan dibandingkan dengan hasil laboratorium dan dibuat model regresi untuk membuat persamaan matematis.  Tingkat akurasi model regresi diuji dengan koefisien determinasi (R2) dan Mean Percentage Error (MAPE). Hasil penelitian menunjukkan adanya perbedaan yang signifikan pada kandungan pupuk dan hasil terbaik pada bahan dasar bekas pupa dengan dekomposer terbaik menggunakan Trichoderma sp. Kombinasi bahan bekas maggot tidak meningkatkan kualitas namun dapat menjadi alternatif untuk pemanfaatan limbah BSF. Persamaan matematis mampu memprediksi nilai kadar N, P, K, dan C organik dengan keakurasian di atas 70%. Hal ini menunjukkan NPK sensor dapat menjadi alternatif dalam mengukur kandungan pupuk secara mudah, cepat, dan akurat.
Implementasi “TEMAN” (Metode Pengenalan Tanaman Sayuran) Bagi Anak SDN Tamansari 01 Kecamatan Wuluhan Kabupaten Jember Suci Ristiyana; Ika Purnamasari; Tri Wahyu Saputra; Yagus Wijayanto; Arthur Frans Cesar Regar; Ummi Sholikah; Tri Ratnasari
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 2 (2023): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i2.4125

Abstract

Pengenalan bercocok tanam dapat dilakukan melalui pelatihan pengabdian kepada masyarakat yang dilaksanakan di SDN Tamansari 01, bertujuan untuk memberikan pengenalan kepada anak-anak agar mereka belajar secara mandiri terkait kebutuhan sayuran yang sehat dan mengoptimalkan kebun atau pekarangan khususnya di sekolah. Kegiatan ini dilakukan dengan perencanaan., kegiatan tersebut meliputi pemilihan lokasi sekolah dasar, tujuan, dan penyiapan alat dan bahan yang diperlukan untuk pelaksanaan. Pengabdian masyarakat dilakukan di SDS Negeri Tamansari 01 Kecamatan Wuluhan Kabupaten Jember. Kegiatan pertanian ini dinamakan kegiatan “TEMAN” (Metode Pengenalan Tanaman Sayuran) sebagai solusi bercocok tanam memanfaatkan pekarangan terbatas untuk sayuran sehat. Kegiatan sederhana ini dapat dilakukan oleh siapa saja khususnya warga SDN Tamansari 01. Metode meliputi presentasi, praktik dan tanya jawab. Siswa diberi tugas untuk menanam dan merawat tanaman sayuran.
Penerapan Teknologi Akuaponik Di Desa Sumberpakem Kecamatan Sumberjambe Kabupaten Jember Suci Ristiyana; Tri Wahyu Saputra; Ika Purnamasari; Yagus Wijayanto
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 4 (2023): Oktober-Desember 2023
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.6619

Abstract

Aquaponik adalah sistem pertanian berkelanjutan dimana merupakan penggabungan budidaya ikan atau perikanan dengan penanaman tanaman baik sayuran atau buah buahan dalam satu lingkungan dimana saling mendukung atau biasanya dikembangkan dalan konsep dasar Aquaponik menggabungkan akuakultur (budidaya ikan) dan hidroponik (budidaya tanaman tanpa tanah). Pemberian ikan di bak atau kolam air, dimana akan menghasilkan limbah dalam bentuk amonia. Bakteri nitrifikasi mengubah amonia menjadi nitrat yang lebih rendah beracun. Air yang kaya nutrisi ini kemudian digunakan untuk menyuburkan tanaman dalam sistem hidroponik. Sistem kerja air yang mengandung limbah ikan dialirkan ke sistem hidroponik, di mana tanaman menyerap nutrisi yang ada dalam air. Tanaman ini menyaring air dan menghilangkan kelebihan nutrisi dan zat berbahaya, sementara akar mereka memberikan oksigen ke dalam air. Setelah air diolah oleh tanaman, air bersih dikembalikan ke bak ikan, menciptakan lingkaran yang berkelanjutan. Program pengabdian bertujuan untuk memberikan pendidikan dan meningkatkan kesadaran masyarakat tentang konsep dan manfaat aquaponik serta potensi keberlanjutan dan keuntungan ekonomi dari metode ini.
KARAKTER SPASIAL DAN TEMPORAL CURAH HUJAN BULANAN KABUPATEN JEMBER BERDASARKAN DATA CHIRPS Purnamasari, Ika; Abdillah, Moc. Reza Wahyu; Wijayanto, Yagus; Saputra, Tri Wahyu; Ristiyana, Suci; Budiman, Subhan Arif
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.2024.011.2.13

Abstract

Jember Regency is one of the national food storage areas. One of the most important resources in cultivating food crops is water which comes from rainfall. The existence of rainfall data is very important in planning and implementing agricultural activities. Limited rainfall data is the main problem for agricultural planning. One solution to this problem is to utilize rainfall data from CHIRPS (Climate Hazards Group Infrared Precipitation Station). The use of CHIRPS data is still biased data, so bias correction is needed to measure the level of accuracy of CHIRPS data for estimating rainfall in an area. Bias correction is carried out using two methods, namely multiple linear regression and power regression. The correction results show that the multiple linear regression method is able to produce monthly rainfall that is close to observations with an RMSE value of 3.9 and a coefficient of determination of 0.99. Temporally, the peak of the rainy season in Jember Regency occurs in December while the dry season is in August. In the rainy season (December-January and February) Jember Regency's rainfall is around 300-500 mm/month and in the dry season (June-July-August) it is in the range of 50-200 mm/month. Spatially, the northern part of Jember, especially Sumberbaru, Bangsalsari and Tanggul subdistricts, is wetter than the Jember Regency area as a whole. The southern part of Jember, especially those close to the coast, has lower rainfall than other regions. In the dry season, rainfall in this region is less than 20 mm/month.
Estimating the contents of Chlorophyll, Nitrogen, and Yields on Rice through Sentinel-2 Vegetation Indices in Heterogeneous Land Management Wijayanto, Yagus; Safitri, Mahardika; Purnamasari, Ika; Budiman, Subhan Arif; Saputra, Tri Wahyu; Regar, Arthur FC; Ristiyana, Suci
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.87159

Abstract

Addressing the global food demand is an urgent priority for governments worldwide. Efficient and effective methods for gauging crop production are crucial. Relying solely on ground-based measurements proves inefficient and expensive, prompting exploration of remote sensing using vegetation indices as a viable alternative. This study sought to achieve three objectives: estimating chlorophyll content in paddy fields, evaluating leaf nitrogen content, and predicting yields. The investigation utilized Sentinel-2A satellite imagery, Soil Plant Analysis Development (SPAD) for chlorophyll measurement, and employed statistical and accuracy analyses. Findings revealed an increase in chlorophyll and leaf nitrogen content from the vegetative to maturity phases, followed by a decline at maturity. NDVI and GNDVI emerged as superior to SAVI and VARI for chlorophyll estimation, attributed to their spectral sensitivity. Likewise, nitrogen prediction showed similar trends, with NDVI and GNDVI exhibiting better RMSE values compared to SAVI and VARI, albeit marginally. However, yield prediction accuracy varied, with NDVI proving most accurate, followed by SAVI, VARI, and GNDVI, indicating the latter's reduced predictive precision due to nitrogen sensitivity. In scenarios where nitrogen is not the predominant yield-limiting factor, NDVI could outperform GNDVI in forecasting yield. Received: 2023-07-22 Revised: 2024-04-18 Accepted: 2024-08-24 Published: 2024-10-10   
Learning from Community Practices: Social Capital of Farming Communities in Supporting Sustainable Agriculture Widjayanthi, Lenny; Kusmiati, Ati; Ibanah, Indah; Agung, Sih; Wijayanto, Yagus; Wulanjani, Distiana; Prastowo, Sigit; Gabrillo, Christina A.
Journal La Lifesci Vol. 5 No. 2 (2024): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v5i2.1017

Abstract

The use of chemical production facilities in farming, both food crops and horticultural crops, has an impact on agricultural land and human health, as well as causes damage to the environment, soil, water, air and living creatures. To achieve success in sustainable development, this is done by identifying social capital and developing farmer capacity. The research objectives are to identify sustainable agricultural practices carried out by farmers, identify community social capital in supporting sustainable agriculture. The research area was determined purposively in Pontang Village, Jember district. Determination of the research sample was carried out by simple random sampling on rice farmers. The research sample consisted of 106 respondents (margin of error of 10%). The data used in this research are primary and secondary data obtained from interviews, observations and document studies. Data analysis was carried out descriptively using scoring and categorization. Some sustainable agricultural practices carried out by communities in the research area are: organic agriculture, crop rotation and polyculture, soil management and agroforestry. Extension workers also conduct Field Schools (FS) for farmers. Farmers are given the knowledge and skills to utilize agricultural waste around them to make organic fertilizer. Extension workers also teach farmers in making PGPR, Beauveria bassiana, Pseudomonas fluorescens (Pf), Trichoderma, and planting refugia in rice fields. The social capital of the farming community in supporting sustainable agriculture is in the moderate category, as well as the supporting dimensions such as the social, norm and network dimension are also in the moderate category.
Spatial Simulation of The Organic Carbon Content and its Effects on the Erodibility and Soil Erosion with Universal Soil Loss Equation and Geographic Information Systems Wijayanto, Yagus; Firmawati, Julvia Nurlaeli; Purnamasari, Ika; Ristiyana, Suci
JOURNAL OF TROPICAL SOILS Vol 30, No 1: January 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i1.25-35

Abstract

Universal Soil Loss Equation (USLE) and Geographical Information Systems are two spatial soil erosion analysis models because both have a spatial context. As an important factor, soil erodibility is crucial in determining soil erosion, with C-organic significantly influencing the K value. The main aim of this study is to characterize soil erodibility and soil loss based on spatial simulation of the effects of soil C-organic in a GIS environment. Research findings indicated that by simulating within a GIS environment, C-organic can affect soil erodibility and erosion. Low C-organic levels can increase soil erodibility, while high C-organic levels can decrease it. A reduction in C-organic by 10%, 20%, and 30% will increase K by 1.10%, 1.17%, and 1.21%, respectively. Conversely, adding 10%, 20%, and 30% C-organic will decrease K by 1.12%, 1.27%, and 1.46%, respectively. A 10%, 20%, and 30% increase in C-organic can reduce soil loss by 1.2%, 1.3%, and 1.5%, while a reduction in C-organic will increase soil loss by 1.1%, 1.2%, and 1.3%, respectively. A low K value indicates slight erosion, while a high K value suggests high erosion. Continuous C-organic and properly managing vegetation are necessary to maintain and improve soil quality.
The Analysis of the Impact of Petroleum Mining on the Environment and Community Economy in Wonocolo Village of Bojonegoro Regency Andriyan, Ricky; Astutik, Sri; Wijayanto, Yagus; Kurnianto, Fahmi Arif; Pangastuti, Era Iswara
Jurnal Kesehatan Lingkungan Indonesia Vol 23, No 3 (2024): Oktober 2024
Publisher : Master Program of Environmental Health, Faculty of Public Health, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkli.23.3.280-287

Abstract

Latar belakang: Pertambangan minyak bumi tradisional menyebabkan kerusakan lingkungan terutama pada tanah. Proses pengolahan minyak bumi menggunakan alat sederhana menyebabkan minyak mentah tumpah ke permukaan tanah yang dapat merubah sifat-sifat tanah. Pertambangan minyak bumi tradisional juga dapat meningkatkan pendapatan ekonomi masyarakat lokal karena dikelola langsung oleh masyarakat. Tujuan penelitian ini adalah untuk mengetahui perubahan sifat fisika dan kimia tanah tercemar limbah minyak bumi serta perbandingan pendapatan masyarakat dari hasil penambangan minyak pada tahun 2010 dengan 2023.Metode: Metode penelitian kualitatif digunakan untuk menjawab tujuan penelitian. Analisis deskriptif melalui survey lapangan digunakan untuk menggambarkan kondisi tanah secara fisika dan kimia serta kondisi perekonimian masyarakat lokal yang dilakukan pada tahun 2023. Parameter kualitas tanah yang diperiksa antara lain struktur tanah, konsistensi tanah, tekstur tanah, warna tanah, dan pH tanah yang dilakukan pada 7 titik berbeda dimana sampel titik 4 merupakan sampel tanah tidak tercemar limbah minyak bumi. Perbandingan pendapaan masyarakat deperoleh melalui wawancara terhadap 7 pekerja tambang yang secara khusus mewakili populasi yang diinginkanHasil: Hasil menunjukkan hilangnya konsistensi pada permukaan tanah, tekstur tanah didominasi pasir, warna tanah menjadi hitam pekat, dan pH tanah berubah. Limbah minyak bumi tidak dapat merubah struktur tanah secara partikel, akan tetapi limbah minyak dapat menyelimuti partikel-partikal tanah karena minyak bumi memiliki efek pelumasan. Hasil pendapatan dari pertambangan minyak bumi mengalami penurunan dan tidak lagi dapat memenuhi kebutuhan masyarakat lokal.Simpulan: Limbah minyak bumi dapat merubah sifat fisik dan kimia pada tanah serta meracuninya sehingga merusak ekosistem tanah, sedangkan hasil pertambangan minyak bumi mengalami penurunan akibat jumlah minyak yang akan habis. ABSTRACTBackground:Traditional petroleum mining causes environmental damage, especially to the soil. The crude oil extraction process using simple tolls results in crude oil spilling onto the soil serface, which can alter soil properties. Traditional petroleum mining can also increase the economic income of local communities because it is managed directly by the community. The aim of this research is to determine changes in the physical and chemical properties of soil contaminated with petroleum waste as well as a comparison of community income from oil mining in 2010 and 2023. Method: The qualitative research method is used to answer the research objectives. Descriptive analysis through field surveys is used to describe the physical and chemical conditions of the soil as well as the economic conditions of local communities which will be carried out in 2023. The soil quality parameters examined in clude soil structure, soil consistency, soil texture, soil color, and soil pH, conducted at 7 different points, where sampel  point 4 represents uncontaminated soil samples from oil waste. The comparison of community income was obtained through interviews with 7 mine worker who specifically represent the desire population.Result:The results indicate a loss of consistency on the soil surface, with soil texture dominated by sand, soil color becoming dark black, and a change in soil pH. Petroleum waste cannot change the soil structure in terms of particles, but oil waste can cover soil particles because petroleum has a lubricating effect. Income from petroleum mining has decreased and is no longer able to meet the needs of local communitiesConclusion:Petroleum waste can change the physical and chemical properties of soil and poison it, thereby damaging the soil ecosystem, in contrast, the results of oil mining are declining due to the decreasing amount of oil reserves. 
Co-Authors Abdillah, Moc. Reza Wahyu Agung Sih Kurnianto Agung, Sih Ahmad Ilham Tanzil Ahmad Ilham Tanzil Al-Ghofiqi, M. Faris Alfatah, Naufal Akbar Amelia Tri Arsita Andriyan, Ricky Anggreini, Rizqi Aprilia Putri Arthur Frans Cesar Regar Arthur Frans Cesar Regar Ati Kusmiati Aurela, Rosalina Diva Bambang Hermiyanto Bambang Kusmanadhi Bejo Apriyanto Budiman, Subhan Arif Cindy Febrian, Berlian Clarissa Myra Ananta Destria Putri, Romadhona Edy Prastyanto Elan Artono Nurdin Else Emilia Rumekso Ersya Kamelia Rosana Fahmi Arif Kurnianto Fahrudi Ahwan Ikhsan Firmawati, Julvia Nurlaeli Gabrillo, Christina A. Gusti, Angger Aisyah Hadiahning Ibanah, Indah Ika Purnamasari Ika Purnamasari Irwanto Sucipto Kharisma Adi Bagaskara Kurnianto, Fahmi Arif Kurniawan, Bintang Kustianto, Muhammad Aldian Dwi Lailatus Sufiaah, Annisa Lazuardi, Adam Dika Lenny Widjayanthi Leona, Agis Moch. Reza Wahyu Abdilah Muhammad Aldian Dwi Kustianto Nabila Nur Aisyah Al Ayyubi Pangastuti, Era Iswara Prasojo, Sri Irawan Laras Pusparani, Syafina Puspito, Agung Nugroho Rachmandhika, Yusuf Ratnasari, Tri Regar, Arthur FC Rina Kumalasari Riska Annisyafira Ristiyana, Suci Roni Bahtiar Safitri, Mahardika Sigit PRASTOWO SRI ASTUTIK Subhan Arif Budiman Subhan Arif Budiman Sultan Ghozi Imaduddin Suparino, Balqis Widyastuti Syafina Pusparani Syahputra, Wahyu Nurkholis Hadi Tri Agus Siswoyo Tri Ratnasari Tri Wahyu Saputra Ubaidillah, Mohammad Ummi Sholikah Ummi Sholikhah Wildan Muhlison, Wildan Wulanjani, Distiana Wulanjari, Distiana Yeremia Rivieri Yoandita Velina Aprilia Yoni Cahyono Yusuf Rachmandhika Zaky Firmansyah Maulana