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A Study of Using QUEFTS Model for Establishing Site Specific Fertilizer Recommendation in Maize on The Basis of Farmer Fields Wijayanto, Yagus; Prastyanto, Edy
AGRIVITA Journal of Agricultural Science Vol 33, No 3 (2011)
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.v33i3.84

Abstract

Nutrient Use Efficiency (NUE) of Maize is considered low. There are two important factors  responsible for this condition: (a) uniform fertilizer recommendation, (b) lack of consideration on soil variability, Indigenous Nutrient Supply and plant nutrient needs.  A method for studying low NUE and the capability of studying these two factors are urgently required. This study used Quantitative Evaluation of Fertility on Tropical Soils (QUEFTS) model. The main aim of this study was to employ and evaluate QUEFTS model for establishing site specific fertilizer recommendation in maize on the basis of farmer fields. Due to a unique characteristic of farmer field, it may be interesting to observe the pattern of soil fertility in relation to yields.  Six farmer's fields and thirty soil samples were taken and analysed in the laboratory. The results showed that QUEFTS model was a valuable tool to make fertilizer recommendation by using yields as an integrated indicator. The results also showed that QUEFTS model was a promising method for establishing fertilizer recommendation for maize. The merits of model for determining Indigenous Nutrient Supply, nutrient yield limiting factors, balanced fertilizer recommendation show that QUEFTS model is a valuable tool for site specific fertilizer recommendation.   Keywords: QUEFTS, recommendation, site specific, yield
Membangun Karakter Cinta Lingkungan Sejak Dini Melalui Pengolahan Sampah Menjadi Kerajian di SDN Suco 3 Kecamatan Mumbulsari Kabupaten Jember Purnamasari, Ika; Ristiyana, Suci; Wahyu Saputra, Tri; Wijayanto, Yagus; Sholikhah, Ummi; Ratnasari, Tri
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 1 (2024): Januari - Maret
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i1.6857

Abstract

Humans who have strong character both individually and socially will form good morals and manners. The application of good character can be expressed in the form of loving the environment. One form of loving the environment is by processing waste into useful crafts. The service at SDN Suco 3 is carried out to implement students' environmental love character by instilling the importance of loving the environment, inviting students to get used to sorting waste and equipping students with the skills to process waste into attractive wall decoration crafts. This activity was well received by students and teachers and had a positive impact on creating a more enjoyable learning atmosphere for students.
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.
Pupuk Organik Kaji Sebagai Alternatif Pemanfaatan Limbah Ternak – Pertanian Di Desa Dukuh Dempok Kabupaten Jember Pusparani, Syafina; Suci Ristiyana; Rina Kumalasari; Yusuf Rachmandhika; Ika Purnamasari; Tri Wahyu Saputra; Yagus Wijayanto; Wildan Muhlison; Irwanto Sucipto; Ahmad Ilham Tanzil
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13134

Abstract

Komoditas utama pertanian di desa Dukuh Dempok, Kabupaten Jember, Jawa Timur merupakan padi yang menghasilkan sebanyak 50% limbah jerami yang belum termanfaatkan. Sebagian petani juga memiliki hewan ternak berupa sapi dan domba yang kotoran ternak tersebut Sebagian besar belum termanfaatkan dan menjadi limbah yang cukup mengganggu lingkungan. Kegiatan pengabdian masyarakat yang dilakukan memberikan solusi terkait permasalahan limbah pertanian-peternakan melalui pembuatan pupuk organik Kaji (Kandang Jerami). Melalui kegiatan pengabdian ini, petani yang berasal dari kelompok tani dapat memperoleh informasi terkait manfaat pupuk organik dan cara pembuatan pupuk organik yang berasal dari limbah pertanian-peternakan yang belum termanfaatkan. Kegiatan pengabdian ini juga mampu memberikan solusi mengurangi limbah yang mengganggu lingkungan menjadi produk yang memiliki nilai tambah yaitu berupa pupuk organik. Pembuatan pupuk organik ini juga menjadi pendukung kemandirian petani dalam memproduksi pupuk secara mandiri yang dapat digunakan dalam kegiatan budidaya pertanian.
PENGARUH POC AIR LIMBAH BUDIDAYA IKAN LELE DAN DOSIS NPK TERHADAP SERAPAN HARA N DAN PERTUMBUHAN TANAMAN CABAI RAWIT (Capsicum frustescens L.) Muthi, Ornela; Hermiyanto, Bambang; Ratnasari, Tri; Wijayanto, Yagus
Fruitset Sains : Jurnal Pertanian Agroteknologi Vol. 13 No. 5 (2025): December: Ilmu Pertanian dan Bidang Terkait
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/fruitset.v13i5.6822

Abstract

The excessive use of inorganic fertilizers in the cultivation of bird’s eye chili (Capsicum frutescens L.) can lead to land degradation and reduced soil fertility, resulting in suboptimal plant growth and yield. One promising solution to address this issue is the utilization of catfish aquaculture wastewater as a raw material for liquid organic fertilizer (LOF). The nutrient content in catfish wastewater, such as nitrogen (N), phosphorus (P), and potassium (K), supports plant development. This study aimed to determine the effect of the combination of LOF from catfish wastewater and various NPK fertilizer doses on nitrogen uptake and the growth of bird’s eye chili plants. The research was conducted at the Greenhouse of the Agrotechnopark, University of Jember, from December 2024 to March 2025, using a factorial completely randomized design (CRD) with two factors: LOF type (no LOF, fresh LOF, and fermented LOF) and NPK dosage (10 g, 15 g, and 20 g per plant). Data were analyzed using ANOVA and further tested with DMRT at a 5% significance level. The results showed that the combination of fermented liquid organic fertilizer (POC) application and NPK dosage of 15 g per plant (or 300 kg/ha), which significantly affected the variables of plant height, number of leaves, number of branches, and root dry weight. It can be concluded that the utilization of catfish aquaculture wastewater as a liquid organic fertilizer, combined with a 25% reduction in NPK fertilizer dosage, can promote plant growth.
Transfer Knowledge Teknologi Pertanian Modern berbasis Hidroponik Tipe Dutch Bucket pada Tanaman Cabai Merah (Capsicum annuum L.) di Desa Kepanjen, Kecamatan Gumukmas, Kabupaten Jember Saputra, Tri Wahyu; Wijayanto, Yagus; Ristiyana, Suci; Purnamasari, Ika; Brian, Ida Bagus Daniswara; Burhanudin, Ahmad; Arthayasa, Raden Mochammad Yudishtira Ageng; Antonio, Ach. Farhad Septian
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 10 No 2 (2026): Volume 10 Nomor 2 Tahun 2026
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v10i2.24112

Abstract

Red chili is one of the agricultural commodities cultivated in Kepanjen Village, Gumukmas District, Jember Regency. The unpredictable fluctuations in weather demand the application of modern agricultural technology that can enhance productivity while ensuring the sustainability of cultivation. As part of a community service program, the dutch bucket hydroponic system placed inside a greenhouse was introduced as an alternative solution for red chili cultivation. The program was implemented through three stages, namely preparation, implementation, and monitoring and evaluation, with students actively involved as facilitators and the community as the main partners. During the implementation stage, a greenhouse measuring 3 × 6 meters (18 m²) was successfully constructed, and a dutch bucket hydroponic installation was set up to accommodate 60 chili plants. The results of the activity showed that farmers and community members who participated in the socialization responded positively and demonstrated high enthusiasm toward the cultivation method applied. Thus, this program not only produced physical facilities in the form of a greenhouse and hydroponic installation but also contributed to improving the knowledge and skills of the community in adopting modern agricultural technologies.
Development of Irrigation Networks Based on Priorities Using the Multiple Attribute Decision Making Method Suci Ristiyana; Tri Wahyu Saputra; Ika Purnamasari; Yagus Wijayanto; Naufal Akbar Alfatah; M. Faris Al-Ghofiqi; Romadhona Destria Putri; Sri Irawan Laras Prasojo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1359-1368

Abstract

Development of irrigation networks is a crucial element in increasing the efficiency and effectiveness of water distribution for agriculture. This research aims to determine priorities for developing irrigation networks in the Bedadung Irrigation Area, Jember Regency, using the Multiple Attribute Decision Making (MADM) method. This method consider various criteria influencing decision-making, such as physical condition of the channel, land area, water requirements, and level of infrastructure damage. This research involved collecting primary and secondary data through field surveys, interviews with interpreters, as well as reviewing technical and administrative documents related to irrigation networks. Data was analyzed using several MADM techniques, such as Simple Additive Weighting (SAW), Weighted Product (WP), and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) to obtain the weight of each criterion and determine development priorities. The results show that the main priority for developing irrigation networks in the Bedadung Irrigation Area is repairing primary, secondary, and tertiary canals that are badly damaged, followed by increasing canal capacity to meet water needs in the dry season. Implementation of the results of this research is expected to increase the efficiency of irrigation water distribution, reduce water losses, and increase agricultural productivity.
Prioritas Pengembangan Jaringan Irigasi dengan Multi-Attribute Decision Making (MADM) pada UPT Curah Malang di Bedadung Kabupaten Jember Ristiyana, Suci; Hidayat, Naufal Akbar Alfatih; Wijayanto, Yagus; Saputra, Tri Wahyu; Purnamasari, Ika; Prasojo, Sri Irawan Laras
Jurnal Agrikultura Vol 37, No 1 (2026): April, 2026
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v37i1.70031

Abstract

Air merupakan sumber daya vital dalam mendukung kegiatan pertanian, terutama di tengah perubahan iklim dan meningkatnya variabilitas cuaca. Ketersediaan air yang memadai dan berkelanjutan sangat dipengaruhi oleh kinerja sistem irigasi. Tujuan dari penelitian ini adalah melakukan evaluasi melalui pendekatan yang sistematis dan berbasis data untuk menentukan prioritas perbaikan saluran irigasi secara efektif. Penelitian ini dilaksanakan di UPT Curah Malang, Daerah Irigasi Bedadung, Kabupaten Jember, pada bulan Juni hingga Agustus 2025. Penelitian menggunakan pendekatan Multi-Attribute Decision Making (MADM) untuk menentukan prioritas rehabilitasi saluran irigasi. Metode MADM yang diterapkan meliputi Simple Additive Weighting (SAW), Weighted Product (WP), dan Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Penilaian dilakukan berdasarkan beberapa kriteria, yaitu tingkat kerusakan saluran primer dan tersier, luas wilayah layanan, ketersediaan air, serta dampak terhadap hasil panen. Hasil analisis menunjukkan bahwa ketiga metode menghasilkan peringkat yang relatif konsisten dalam menentukan prioritas perbaikan saluran irigasi. Daerah irigasi Sukorejo secara konsisten menempati peringkat pertama pada seluruh metode, diikuti oleh Gumelar pada peringkat kedua. Adapun daerah irigasi Keting berada pada peringkat terakhir pada semua metode, yang menunjukkan tingkat prioritas penanganan yang lebih rendah. Perbedaan hanya ditemukan pada urutan daerah irigasi Paleran dan Gambirono antara metode TOPSIS dan metode lainnya, namun tidak memengaruhi penentuan prioritas utama secara keseluruhan. Konsistensi hasil tersebut menunjukkan bahwa pendekatan MADM dapat digunakan sebagai dasar pengambilan keputusan dalam penyusunan rencana rehabilitasi infrastruktur irigasi yang lebih efektif, efisien, dan tepat sasaran.
Evapotranspiration and Growth Responses of Kale (Brassica oleracea L. var sabellica) to Different Composition and Type of Planting Media Saputra, Tri Wahyu; Ghuvara, Rihlana Ardhian; Bowo , Cahyoadi; Purnamasari, Ika; Wijayanto, Yagus; Ristiyana, Suci; Wirawan, Ahmad Agam
PLANTA TROPIKA Vol. 14 No. 1 (2026)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v14i1.27381

Abstract

Kale (Brassica oleracea L. var. sabellica) is a high-value horticultural crop in Indonesia that requires precise water management to enhance productivity. This study examines the effects of growing media composition and type on water use efficiency, evapotranspiration (ET), and growth performance using a Randomized Complete Block Design with ANOVA and Duncan’s Multiple Range Test (DMRT). Two factors were tested: (1) media composition (M1: soil: media mix = 1:1; M2: 3:1; M3: 1:3) and (2) media type (P1: rice husk biochar; P2: manure; P3: cocopeat). Results showed an average water consumption of 254.98 ± 131.3 ml/day and water use efficiency of 11.6 ± 4.3%. ETo, ETc fluctuated due to environmental factors. Using Blaney-Criddle, ETo averaged 6.18 mm/day with Kc of 1.8 ± 0.45, while Hargreaves yielded 12.24 mm/day with Kc of 0.9 ± 0.22. Cocopeat and a 3:1 soil-media mix yielded 162 g/plant and a potential yield of 1.8 tons per hectare. These findings highlight the importance of optimized growing media for increasing water spinach productivity in tropical greenhouse conditions and provide a quantitative integration of evapotranspiration analysis across various growing media compositions and types.
Komparasi Metode Estimasi Evapotranspirasi Berbasis Cropwat dan Python (Studi Kasus: Chiang Mai, Thailand) Wahyu Nurkholis Hadi Syahputra; Adam Dika Lazuardi; Yagus Wijayanto; Ahmad Ilham Tanzil
Plumula : Berkala Ilmiah Agroteknologi Vol. 13 No. 2: Juli 2025
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/plumula.v13i2.250

Abstract

Evapotranspirasi (ET) merupakan komponen penting dalam siklus hidrologi yang menggambarkan jumlah air yang menguap dari permukaan tanah, air, dan vegetasi akibat faktor iklim dan fisiologis tanaman. Estimasi laju ET sangat penting dalam pengelolaan kebutuhan air tanaman, terutama padi yang memerlukan air dua hingga tiga kali lebih banyak dibandingkan tanaman pangan lainnya. Berbagai perangkat lunak telah dikembangkan untuk mengestimasi ET, namun sebagian memiliki keterbatasan fitur dan akses, terutama karena bersifat berbayar. Saat ini, Python sebagai bahasa pemrograman yang banyak digunakan di berbagai sektor, termasuk pertanian, telah menghadirkan modul Pyet untuk estimasi ET. Penelitian ini bertujuan untuk mengevaluasi dan membandingkan hasil estimasi ET antara perangkat lunak Cropwat 8.0 dan modul Pyet Python dengan menggunakan data iklim harian tahun 2021 di Provinsi Chiang Mai, Thailand, dengan komoditas padi sebagai objek studi. Hasil menunjukkan bahwa modul Pyet memiliki potensi sebagai algoritma estimasi ET dengan korelasi tinggi terhadap hasil Cropwat (R² = 0,981), sehingga dapat diandalkan dalam analisis kebutuhan irigasi dan manajemen air pertanian.
Co-Authors Abdillah, Moc. Reza Wahyu Ach. Fauzan Mas'udi Adam Dika Lazuardi Adin Novitasari Agung Sih Kurnianto Agung, Sih Agus Wedi Pratama Ahmad Ilham Tanzil Ahmad Ilham Tanzil Amelia Tri Arsita Aminatun Nisa Andriyan, Ricky Anggreini, Rizqi Aprilia Putri Antonio, Ach. Farhad Septian Arthayasa, Raden Mochammad Yudishtira Ageng Arthur Frans Cesar Regar Arthur Frans Cesar Regar Ati Kusmiati Bambang Hermiyanto Bambang Kusmanadhi Bejo Apriyanto Bowo , Cahyoadi Brian, Ida Bagus Daniswara Budiman, Subhan Arif Burhanudin, Ahmad Cindy Febrian, Berlian Clarissa Myra Ananta Edy Prastyanto Elan Artono Nurdin Else Emilia Rumekso Ersya Kamelia Rosana Fahmi Arif Kurnianto Fahrudi Ahwan Ikhsan Firmawati, Julvia Nurlaeli Gabrillo, Christina A. Ghuvara, Rihlana Ardhian Hermiyanto, Bambang Hidayat, Naufal Akbar Alfatih Ibanah, Indah Ika Purnamasari Ika Purnamasari Ika Purnamasari Irwanto Sucipto Kharisma Adi Bagaskara Kurnianto, Fahmi Arif Kurniawan, Bintang Kustianto, Muhammad Aldian Dwi Lailatus Sufiaah, Annisa Lenny Widjayanthi Leona, Agis M. Faris Al-Ghofiqi Mas’ud Hermansyah Mas’ud Hermansyah Moch. Reza Wahyu Abdilah Much. Misbah Muhtadi Muhammad Aldian Dwi Kustianto Muthi, Ornela Nabila Nur Aisyah Al Ayyubi Naufal Akbar Alfatah Nur Andita Prasetyo Pangastuti, Era Iswara Prasojo, Sri Irawan Laras Pusparani, Syafina Rachmandhika, Yusuf Ratnasari, Tri Regar, Arthur FC Rina Kumalasari Riska Annisyafira Ristiyana, Suci Romadhona Destria Putri Roni Bahtiar Safitri, Mahardika Sigit PRASTOWO SRI ASTUTIK Sri Irawan Laras Prasojo Sri Rejeki Utami Stanislaus Jiwandana Pinasthika Subhan Arif Budiman Subhan Arif Budiman Suci Ristiyana Sultan Ghozi Imaduddin Syafina Pusparani Tri Agus Siswoyo Tri Ratnasari Tri Wahyu Saputra Ummi Sholikah Ummi Sholikhah Wahyu Nurkholis Hadi Syahputra Wildan Muhlison, Wildan Wirawan, Ahmad Agam Wulanjani, Distiana Wulanjari, Distiana Yeremia Rivieri Yoandita Velina Aprilia Yoni Cahyono Yusuf Rachmandhika Zaky Firmansyah Maulana