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All Journal Jurnal Penelitian Saintek Jurnal Ilmu Lingkungan Agrikultura Bulletin of Scientific Contribution : Geology Teknotan: Jurnal Industri Teknologi Pertanian Journal of Degraded and Mining Lands Management Jurnal Agroekoteknologi Jurnal Agro Kultivasi SAINS TANAH - Journal of Soil Science and Agroclimatology Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Permukiman Jurnal Agrotek Indonesia Soil REns Jurnal Agro Wiralodra Agrifarm: Jurnal Ilmu Pertanian
Benny Joy
Fakultas Pertanian Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Other

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The effect of cow manure amendment and the ratio of gold mine tailings on sweet potato gold phytomining Noviardi, Rhazista; Joy, Benny; Sudirja, Rija; Setiawati, Mieke Rochimi; Djuwansah, Muhamad Rachman; Karuniawan, Agung; Sofyan, Emma Trinurani; Suryatmana, Pujawati
Journal of Degraded and Mining Lands Management Vol. 12 No. 1 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.121.6665

Abstract

Artisanal and small-scale gold mining has commonly used the mercury amalgamation method for gold ore extraction. The processing waste or tailings often contain gold and other metals. This study examined the effects of cow manure amendment and the ratio of gold mine tailings on sweet potato     (Ipomoea batatas L.) gold phytomining. The pot experiment was conducted in the Faculty of Agriculture greenhouse at Padjadjaran University in Indonesia. The sweet potato MZ119 clone (an orange-fleshed sweet potato) was planted on a polybag (40 x 40 cm) consisting of 10 kg of planting media, which was a mixture of gold mine tailing and soil. The design used was a completely randomized design factorial with three replications. The first factor was ratios of gold mine tailing consisting of three levels, namely 30%, 50%, 70%, and 100% (w/w). The second factor was doses of organic manure, namely without cow manure, 250 g pot-1, 500 g pot-1, and 750 g pot-1. The results demonstrated that the application of cow dung and the gold mine tailings ratio (w/w) had a significant (p = 0.05) effect on plants' dry weight biomass, gold accumulation, and gold phytomining by sweet potato. The highest gold mass yield of 0.066 mg gold plant-1 was achieved by a 50% (w/w) gold mine tailing ratio and 750 g pot-1 cow manure treatment.
Perbandingan Respon Tanaman Terhadap Aplikasi Pupuk Majemuk: Analisis dan Temuan Utama Mulyani, Oviyanti; Joy, Benny; Remona, Rizkiyani
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57233

Abstract

The use of compound inorganic fertilizers in plant cultivation systems is on the rise because of their practicality, more comprehensive and homogeneous nutrient availability, and potential to reduce production costs. Different combinations of compound fertilizer products can generate a variety of responses in terms of plant growth. The aim of this investigation was to assess how plants responded to the components of their results, specifically the variations in two distinct compositions of compound fertilizers. This investigation divided 60 experimental sites into two groups, each using two distinct types of compound fertilizers. The macronutrient content of the compound fertilizers (NK and NP), distinguished them. This study employed nine treatments, which included a control (without fertilizer treatment), conventional NPK fertilizer, a combination of NPK fertilizers (3/4, and 1) doses with (1/2, 3/4, 1 and 1) doses of compound fertilizer, and a randomized block design Each treatment was repeated three times. The results of this study suggest that the application of compound fertilizer with two distinct compositions has a substantially different effect than the control treatment. In comparison to compound fertilizers with a higher potassium content, which have a yield component value of RAE 134%, the application of compound fertilizers with a higher phosphorus content can provide a higher yield component value of RAE 127.92%. The function of applying potassium-containing nutrients can produce better outcomes for corn plant than those with higher phosforus content, making it an interesting study that should be investigated further in the future
Respons N-Total, P-Potensial dan K-Potensial dan Hasil Jagung Manis (Zea mays saccharata Sturt) akibat Pemberian Pemupukan Pupuk Organik Remah dan NPK pada Tanah Inceptisol Sara, Dirga Sapta; Sofyan, Emma Trinurani; Joy, Benny
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57246

Abstract

Sweet corn is an agricultural commodity that has increasing market demand and high economic value. To achieve optimal production results, proper fertilization is very important, especially on Inceptisol soils that have low to medium fertility. This study aimed to evaluate the combination of crumb organic fertilizer and NPK fertilizer on soil N-total, P-potential, and K-potential as well as sweet corn crop yield. The experiment was conducted from September to December 2023 at the Experimental Field, Padjadjaran University, using Inceptisol soil, sweet corn seeds, crumb organic fertilizer, and NPK fertilizer (15-15-15). Randomized Group Design, six treatments including control, recommended dose of NPK fertilizer, and combination of crumb organic fertilizer with NPK, repeated 4 times. Analysis in the maximum vegetative phase at 55 HST with testing parameters including soil N-total (Kjeldahl method), P-potential (Bray method), K-potential (ammonium acetate method). The results showed that the combination of ¾ NPK and 1 ½ crumb organic fertilizer was effective in increasing soil N-total, P and K-potential and sweet corn yield.
ANALISIS HASIL AIR (“WATER YIELD”) BERDASARKAN DEBIT ALIRAN SUNGAI, DTA CITARIK BAGIAN HULU, DESA TANJUNGWANGI, KECAMATAN CICALENGKA, KABUPATEN BANDUNG JAWA BARAT Haryanto, Edi Tri; Hendarmawan, Hendarmawan; Sukiyah, Emi; Joy, Benny
Bulletin of Scientific Contribution Vol 15, No 1 (2017): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (909.79 KB)

Abstract

AbstrakPenelitian hasil air berdasarkan debit aliran sungai Daerah Tangkapan Air (DTA) Citarik Hulu, Jawa-Barat  ini bertujuan untuk mendapatkan data hasil air dan analisis debit aliran pada sungai-sungai kecil yang ada di Desa Tanjungwangi, Kecamatan Cicalengka, Kabupaten Bandung, dan Desa Sindulang, Kecamatan Cimanggung, Kabupaten Sumedang,  Jawa-Barat. Metoda penelitian adalah dengan melakukan pengukuran debit aliran sungai menggunakan alat “current meter” dan pengukuran curah hujan dengan alat ukur curah hujan manual, dengan mencatatan harian. Hasil penelitian menunjukkan bahwa hasil air (“water yield”) rata-rata harian pada sub-sub DAS di sebelah selatan, yaitu di Desa Tanjungwangi lebih kecil disbanding  dengan sub-sub DAS di sebelah utara  di Desa Sindulang, Kecamatan Cimanggung, Kabupaten Sumedang, disebabkan oleh  prosentase air yang  tersuplesi ke dalam air tanah, sub-DAS di sebelah selatan  lebih besar.AbstractThe research of  water  yield  based on  river flow  of   Upper  Citarik Catchments, West-Java aims to get water yield data and to analyze flow discharge of small rivers in Tanjungwangi Village, Cicalengka Sub District, Bandung Regency, and small rivers in  the village of  Sindulang,  Cimanggung Sub-District, Sumedang Regency, West Java.  The research  method  is by measuring the flow discharge of the river using "current meter" and  measuring daily  rainfall with  rainfall  measurements  devices manually. The results showed that daily average  water yield  in the  south ,sub-sub-catchments which is in the village of Tanjungwangi smaller that of the north  sub-catchments in the village of Sindulang  due to the percentage of water that infiltrate in to the groundwater, sub-catchment in south were larger.
Enhancing sustainable rice production through organic plus fertilizer in irrigated paddy fields Mulyani, Oviyanti; Sofyan, Emma Trinurani; Citraresmini, Ania; Joy, Benny; Husen, Anne Yuliana
Kultivasi Vol 24, No 2 (2025): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v24i2.64985

Abstract

Sustainable rice farming is increasingly threatened by declining soil fertility, excessive reliance on chemical fertilizers, and environmental degradation from intensive agricultural practices. There is an urgent need for innovative organic fertilizer products that combine organic materials with macro and micronutrient enhancements to restore soil health effectively. This research aimed to evaluate the effect of organic plus fertilizer (OPF) as a sustainable soil amendment to improve soil nutrient status, increase paddy productivity, and enhance overall soil health. The experiment was conducted using a Randomized Block Design (RBD) with nine treatments: one recommended OPF dose, six combinations of NPK (75 – 100%) and OPF (75 – 150%), one recommended conventional NPK dose, and one control. Variables observed included plant growth, yield, and yield components, total soil nitrogen, and plant uptake of N, P, and K. Results indicated that OPF combined with NPK significantly increased plant height (29.13 – 31.38%) and number of panicles (57.89%) compared to the control. Nutrient uptake improved for nitrogen (23.68%) and potassium (15.96 – 21.28%), although no significant improvement was observed for phosphorus. Yield parameters showed an 81.97%–118.50% increase over the control. The combinations of 75% NPK + 150% OPF, 100% NPK + 75% OPF, and 100% NPK + 100% OPF produced taller plants, higher yields, greater nutrient uptake, and lower residual nitrogen in the soil. For optimal rice yield and soil health, integrated application of OPF with either a full or 75% NPK dose is recommended.
Silica, Soil and Paddy Plant Productivity Qurrohman, Budy Frasetya Taufik; Suriadikusumah, Abraham; Joy, Benny; Sudirja, Rija
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 8 No. 2 (2024): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Juni
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v8i2.11261

Abstract

The element Si is a functional nutrient for rice plants. The loss of available Si from paddy fields every time of harvest is relatively high. The impact of reduced available Si content is a decrease in the efficiency of N, P, K fertilization, plant resistance to abiotic and biotic stresses. Si fertilization on paddy plants in Indonesia has not been implemented massively by farmers. Si fertilization by returning rice straw and husks to the paddy field in compost and biochar is a strategic and economical step to replenish the depleted Si reserves of paddy fields. The response of Si fertilization between one region will differ depending on the concentration of Si-available in the paddy soil. The development of the critical limit of Si available for paddy soil in Indonesia needs to be investigated further so that the critical limit of Si can be used as a standard in determining the need for Si fertilization.
Pengaruh aplikasi silika terhadap produktivitas tanaman padi pada tanah sawah dengan status silika berbeda Frasetya, Budy; Suriadikusumah, Abraham; Joy, Benny; Sudirja, Rija
Jurnal AGRO Vol. 12 No. 2 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.49997

Abstract

Tanaman padi (Oryza sativa L.) merupakan komoditas strategis dalam menjaga ketahanan pangan nasional. Berbagai upaya dilakukan agar hasil panen tanaman padi terus meningkat. Aplikasi silika (Si) pada tanaman padi masih jarang dilakukan oleh petani sebagai upaya untuk meningkatkan produktivitas tanaman padi. Penelitian ini bertujuan untuk menentukan konsentrasi terbaik aplikasi Si pada setiap status Si tanah sawah terhadap produktivitas tanaman padi. Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap (RAL) dengan ulangan tidak sama. Terdiri dari sembilan perlakuan yang merupakan kombinasi antara status Si tersedia (rendah, sedang dan tinggi) dan aplikasi Si (tanpa pemupukan, ekstrak silika sekam padi 20 dan 40 mL L-1. Variabel penelitian yang diamati yaitu jumlah malai umur 84 dan 98 hari setelah tanam, berat kering biomassa jerami, berat gabah per 1000 butir, berat gabah per rumpun dan berat gabah konversi per hektar. Hasil penelitian menunjukkan bahwa konsentrasi optimum aplikasi Si berbeda-beda bergantung pada status Si dalam tanah. Level optimum aplikasi Si diperoleh konsentrasi 11 dan 28 mL L-1 untuk Si tersedia sedang dan tinggi. ABSTRACT Rice is a strategic commodity for maintaining national food security. Various efforts are being made to increase rice yields. Application of silica (Si) on rice plants is still rarely carried out by farmers as an effort to increase rice productivity. This study aims to determine the optimal concentration of Si application at each Si status of paddy soil for rice plant productivity. The method used in this study is an experimental method using a completely randomized design with unequal replications. Consisting of nine treatments, a combination of available Si status (low, medium and high) and Si application (no fertilization, rice husk silica extract 20 and 40 mL L-1). The research parameters observed were the number of panicles at 84 and 98 days after planting, dry weight of straw biomass, grain weight per 1000 grains, grain weight per clump and converted grain weight per hectare. The results indicated that the optimal Si application concentration varied according to the soil Si status. The optimum Si application was at concentration of 11 mL L-1 of 28 mL L-1 in paddy soil with a medium and high available Si status, respectively.
Integrasi Kompos Kulit Kopi dan Biochar untuk Meningkatkan Kualitas Bibit Kopi Arabika Sara, Dirga Sapta; Tridakusumah, Ahmad Choibar; Joy, Benny; Sofyan, Emma Trinurani; Suriadikusumah, Abraham
Soilrens Vol 23, No 2 (2025)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v23i2.69715

Abstract

The application of organic amendments is an important strategy to improve seedling quality in coffee nurseries. This study aimed to evaluate the effects of coffee husk compost and biochar, appliedsingly and in combination, on the growth of Arabica coffee seedlings. The experiment was conductedin a nursery using polybags filled with 5 kg of growing media and arranged in a randomized completeblock design with seven treatments and four replications. The treatments consisted of a control, coffeehusk compost alone, biochar alone, and combinations of compost and biochar at different rates.Growth parameters observed included plant height, stem diameter, and number of leaves. The resultsindicated that all amended treatments significantly improved seedling growth compared to thecontrol. The best growth performance was consistently obtained from the combined application ofcoffee husk compost at 300 g polybag⁻¹ and biochar at 200 g polybag⁻¹, which produced the highestplant height, stem diameter, and leaf number. This treatment demonstrated a synergistic effectbetween coffee husk compost as a nutrient source and biochar as a soil conditioner that improved thegrowing media environment. These findings suggest that the combined use of coffee husk compost andbiochar at appropriate rates is an effective approach to enhance vegetative growth and overall qualityof Arabica coffee seedlings in nursery systems.
Peran Biochar-silika dan Pupuk Anorganik Tunggal dalam Meningkatkan Ketersediaan Fosfor dan Hasil Padi Sawah Muhammad, Fadlan Atalla; Rival, Rival; Citraresmini, Ania; Sofyan, Emma Trinurani; Joy, Benny
Soilrens Vol 23, No 2 (2025)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v23i2.69718

Abstract

Rice productivity in Inceptisols is often constrained by high phosphate fixation and low nutrient efficiency, despite high total nutrient reserves. This study aimed to evaluate the effectiveness of silicaenriched biochar in improving soil chemical properties and maintaining rice yield under reduced N, P, K fertilization. A field experiment was arranged in a Randomized Block Design with two factors: silicaenriched biochar (0, 1.25, and 2.5 t ha-1) and N, P, K fertilizer dosages (0, 50%, and 100% of the  recommended dose). Observed parameters included Cation Exchange Capacity (CEC), available phosphorus, total soil silica, and yield components. The results showed a significant interaction between treatments on soil chemical properties, particularly CEC and pH. Application of 2.5 t ha-1 silica-enriched biochar independently increased available phosphorus by 24.3% and total soil silica by 5.9% compared to the control, likely due to phosphate desorption mechanisms. Agronomically, while N, P, K fertilizer was the dominant factor for yield, the combination of 2.5 t ha-1  silica-enriched biochar  with 50% N, P, K dosage produced Milled Dry Grain (MDG) yields that were statistically comparable to the 100% N, P, K treatment. This indicated that silica-enriched biochar can substitute up to 50% of inorganic fertilizer requirements without compromised yield
Peranan Pupuk Magnesium–Sulfur (Kieserit) dalam Memperkuat Efisiensi Pemupukan NPK dan Produktivitas Jagung Manis pada Inceptisol Mulyani, Oviyanti; Sofyan, Emma Trinurani; Joy, Benny
Soilrens Vol 23, No 2 (2025)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v23i2.69712

Abstract

Modern agriculture largely depends on NPK fertilization however, the neglect of secondary nutrients, particularly magnesium (Mg) and sulfur (S), has increasingly led to nutrient imbalances andreduced fertilizer efficiency. Magnesium plays a crucial role in photosynthesis, energy transfer, andenzyme activation, and its deficiency often referred to as the “forgotten element” has become moreprevalent in intensive cropping systems and leached mineral soils. This study aimed to evaluate therole of magnesium–sulfur (Mg–S) fertilizer derived from kieserite in enhancing the growth and yieldof sweet corn (Zea mays saccharata L.) cultivated on Inceptisol soil. This study used a RandomizedBlock Design (RBD) with seven different combination treatments between kieserite (½; ¾; 1; 1 ½ andNPK (¾ and 1) recommended dosages, one treatment recommendation dose of local farmer and onetreatment without fertilizer for comparison. Each treatment was replicated three times, resulting in atotal of twenty-seven experimental plots. Soil chemistry parameters as a main object of thisexperiment. The results of this study showed that the application of kieserite inorganic fertilizersignificantly improved N, P, K, and Mg concentrations in plant tissue, increased total soil Mg content,and enhanced yield components of sweet corn compared to the control and standard NPK treatments.The combined application of one dose of kieserite (300 kg ha⁻¹) and the recommended NPK rate (350–100–50 kg ha⁻¹) produced the highest yield, reaching 14.24 t ha⁻¹, indicating that balanced Mg–Ssupplementation is essential for optimizing nutrient efficiency and maximizing sweet cornproductivity on Inceptisol soils.
Co-Authors Abraham Suriadikusumah Agung Karuniawan Ahmad Choibar Tridakusumah Ai Ening Rostini Aisyah D Suyono Alia Halimatusy Ania Citraresmini Anni Yuniarti Budy Frasetya Taufik Qurrohman Chamid Itmam Chamid Itmam Chay Asdak Dedi Nusyamsi Dirga Sapta Sara Diyan Herdiyantoro Djuwansah, Muhamad Rachman Edi Tri Haryanto, Edi Tri Elis Hastuti Emi Sukiyah Emma T. Sofyan Emma Trinurani Sofyan Euis Amilia Fajar Pratama Putra Fauziah, Nicky Oktav Ficky Yulianto Wicaksono Fiky Yulianto Wicaksono Gredia Sekar Saraswati Gumelar, Fajar Akbar H.E. Hidayat Salim HAPPY WIDIASTUTI Hendarmawan Hendarmawan Husen, Anne Yuliana Ida Nur Istina Ida Nur Istina Iin Handayani Jajang Sauman Hamdani Mahfud Arifin Maulinda, Restiana Maya Damayani Mieke Rochimi Setiawati Muhammad Imam Al Mu'min Muhammad, Fadlan Atalla Nana Danapriatna Nenny Nurlaeny Oviyanti Mulyani Pujawati Suryatmana Qurrohman, Budy Frasetya Taufik Rahmayanti, Fetty Dwi Rani Ros Ratna Santi, Ratna Regina Hindersah Reginawanti Hindersah Remona, Rizkiyani Rhazista Noviardi Rija Sudirja Rina Devnita Rival, Rival RR Darlita RR Darlita Santi Rosniawaty Sunardi Sunardi Teguh Husodo Tualar Simarmata Unang Supratman Wicaksono, Ficky Yulianto Yulianti Machfud Yuliati Machfud Yuliati Machfud