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Pengaruh Dosis Herbisida Isopropilamina Glifosat 480 SL untuk Pengendalian Gulma pada Budidaya Tanaman Eukaliptus (Eucalyptus sp.) Kurniadie, Denny; Widayat, Dedi; Sernita, Putri Intan
Agrikultura Vol 33, No 2 (2022): Agustus, 2022
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v33i2.40613

Abstract

Eukaliptus merupakan salah satu tanaman prioritas pada Hutan Tanaman Industri (HTI) yang memiliki banyak manfaat. Upaya peningkatan produksi eukaliptus dipengaruhi oleh keberadaan gulma yang merugikan karena menyebabkan adanya kompetisi dengan tanaman eukaliptus. Penelitian ini bertujuan untuk mengetahui efektivitas herbisida Isopropilamina Glifosat 480 SL untuk mengendalikan gulma umum pada pertanaman eukaliptus. Penelitian ini dilakukan di kebun eukaliptus, Desa Lebak Muncang, Kecamatan Ciwidey, Kabupaten Bandung, Provinsi Jawa Barat. Rancangan percobaan yang digunakan yaitu Rancangan Acak Kelompok (RAK) dengan tujuh perlakuan dan empat ulangan. Perlakuan terdiri dari aplikasi herbisida Isopropilamina Glifosat 480 SL dosis 1,50 l/ha; 2,25 l/ha; 3,00 l/ha; 3,75 l/ha; 4,50 l/ha; penyiangan manual; dan kontrol (tanpa perlakuan pengendalian). Hasil penelitian menunjukkan bahwa herbisida Isopropilamina Glifosat 480 SL pada dosis 1,50 l/ha sampai 4,50 l/ha efektif dalam mengendalikan gulma daun lebar seperti Ageratum conyzoides dan Borreria alata, gulma rumput seperti Paspalum conjugatum dan Imperata cylindrica, serta gulma total pada budidaya tanaman eukaliptus hingga pengamatan 12 MSA dan tidak menimbulkan efek keracunan pada tanaman eukaliptus.
The effectiveness of different formulations of glyphosate herbicides under simulated rainfall conditions in controlling various weeds Fajriani, Syifa; Kurniadie, Denny; Umiyati, Uum
Kultivasi Vol 23, No 1 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i1.48911

Abstract

Herbicide effectiveness is affected by herbicide formulation, rainfall, and weed type. Differences in glyphosate salt formulations and 2,4 D amine mixtures may result in variations in the herbicide's ability to wash off the herbicide due to rain. The aim of this study was to assess the effectiveness of different glyphosate herbicide formulations under varying rainfall in controlling various weeds. The experiment took place in a controlled greenhouse environment, utilizing a split plot experimental design with four replications.  The main plot was assigned to six different rainfall timings: 0 hours after application (HAA), 1 HAA, 2 HAA, 3 HAA, 4 HAA, and no rainfall. The subplots involved different herbicide formulations, namely isopropylamine glyphosate (h1), potassium glyphosate (h2), sodium glyphosate (h3) and glyphosate herbicide, IPA herbicide glyphosate + 2,4 D Amine (h4) and without any herbicide application (h0). Various parameters were observed, including weed dry weight and percentage of mortality growth. The results showed that the effectiveness of each herbicide formulation was diffent among weed specie under simulated rainfall conditions. Ageratum conyzoides can be controlled using isopropylamine glyphosate and potassium glyphosate with rainfall at 1 HAA. Axonopus compressus can be controlled by isopropylamine glyphosate and sodium glyphosate with rainfall at 1 HAA, while Borreria alata and Cyperus rotundus were effectively controlled by isopropylamine glyphosate with rainfall at 1 HAA.
The application of Florpyrauxifen-benzyl 25 g/L, a new auxin synthetic herbicide, to control and inhibit the growth of water hyacinth weed (Eichhornia crassipes (Mart). Solms) Rezkia, Nita Nur; Kurniadie, Denny; Widayat, Dedi
Kultivasi Vol 22, No 3 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i3.45677

Abstract

Water hyacinth is an invasive species that spreads rapidly and causes several issues in aquatic habitats; therefore, efforts are required to eradicate weeds in aquatic ecosystems. Aquatic weed control in Indonesia using herbicide is very limited, so it can be an alternative for aquatic weed control management. This research goal was to examine the effectiveness of the herbicide with active agent Florpyrauxifen-benzyl 25 g/L in controlling and inhibiting the rapid growth of (E. crassipes). This research was carried out at the Ciparanje Greenhouse and Weed Science Laboratory, Faculty of Agriculture Universitas Padjadjaran, West Java, Indonesia, from August to October 2022. The experiment utilized a randomized block design (RBD) with eight treatments and four replications. The treatments consisted of herbicides with active ingredients Florpyrauxifen-benzyl 25 g/L doses of 5, 15, 25, 35, 45, herbicide 2,4-D DMA 825 g/L (1200), Penoxsulam 25 g/L (12.5) (g a.i/ha), and Control (Without Herbicide). According to the experiments, E. crassipes was effectively inhibited and controlled by the herbicide Florpyrauxifen-benzyl 25 g/L at a dose of 5 g a.i./ha. Florpyrauxifen-benzyl 25 g/L herbicide can inhibit relative growth rate, doubling time, number of leaves and clumps of E. crassipes up to 6 WAA. 
The effect of herbicide glufosinate ammonium 150 g/L dose on several weeds and potatoes (Solanum tuberosum L.) yield Kurniadie, Denny; Sumekar, Yayan; Valent, Chika
Kultivasi Vol 22, No 1 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i1.39746

Abstract

In the last three years, potato production in Indonesia fluctuated every year. One of the factors that cause low productivity of potatoes is weed. The presence of weeds in potato planting areas can inhibit plant growth and affect potato yields. The aim of this study is to determine the effectiveness of herbicide glufosinate ammonium 150 g/L to control common weeds in potato plants. This research was conducted in a farmer field in Lebak Muncang Village, Ciwidey District, Bandung Regency, West Java Province. The experimental design used was a randomized block design with six treatments and four replications. Weed control using the herbicide glufosinate ammonium 150 g/L at a dose of 2.75– 4.50 L/ha was completely (100%) controlled Eleusine indica, Galinsoga parviflora, Amaranthus spinosus, Richardia brasiliensis, and total weeds for up to 6 weeks after application without causing symptoms of poisoning and could increase the number of potato tuber per plant and yield of potato per plot.
Pelatihan Teknologi Pertanian bagi Penyuluh Pertanian Kabupaten Majalengka Umar Dani; Sri Ayu Andayani; Ida Marina; Yayan Sumekar; Dedi Widayat; Uum Umiyati; Denny Kurniadie; Yuyun Yuwariah
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 1 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i1.4179

Abstract

Keberhasilan pembangunan pertanian ditentukan oleh kondisi sumberdaya alam, peran penyuluh pertanian dan kualitas sumberdaya manusia yang mendukungnya. Tujuan pelatihan ini adalah meningkatkan kapasitas dan kompetensi Penyuluh Pertanian Kabupaten Majalengka. Metode Pelatihan yang digunakan adalah ceramah, diskusi dan praktek lapangan. Hasil pelatihan bahwa terdapat peningkatan pengetahuan dan sikap mengenai agribisnis dan teknologi budidaya dari 33%-80%, serta peningkatan kemampuan peserta dalam mempraktekan teknik aplikasi herbisida dari 33%-68%. Kesimpulan terdapat peningkatan pengetahuan, sikap dan keterampilan peserta kegiatan pelatihan teknologi pertanian bagi Penyuluh Pertanian Kabupaten Majalengka
Noxious Weed Species Monochoria vaginalis Resistant to Synthetic Auxin and Acetolactate Synthase Inhibitor Herbicides Ryan Widianto; Denny Kurniadie
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.86507

Abstract

Monochoria vaginalis (Burm. f.) C. Presl is a dominant weed in paddy rice cultivation, significantly threatening productivity and farming sustainability. In Subang, Indonesia, synthetic auxin and acetolactate synthase (ALS) inhibitors are commonly used to control M. vaginalis. However, farmers have currently reported declining efficacy of these herbicides. Therefore, this study aimed to confirm the resistance of M. vaginalis to the early post-emergence application of synthetic auxin and ALS inhibitors. Plant bioassays were conducted using the pot test method to determine resistance level. Herbicides were applied 2 weeks after planting M. vaginalis at 0.25, 0.5, 1.0, 2.0, 4.0, and 8.0 times the recommended dose, and untreated plants as control. Herbicides tested were 2,4-D, bensulfuron-methyl, bispyribac sodium, penoxulam, and sulfentrazone. The results obtained based on resistance index values (RI) showed that M. vaginalis populations from Kediri and Gandasari, Subang, had moderately to high resistance to 2,4-D (RI: 8.15 and 13.0) and bensulfuron-methyl (RI: 205.61 and 21.80). Weed was moderately resistant to bispyribac sodium (RI of Kediri biotype: 8.79) and had low to moderate resistance to penoxulam herbicides (RI: 8.94 and 3.56). In contrast, M. vaginalis-resistant biotypes remained susceptible to sulfentrazone (protoporphyrinogen oxidase/PPO inhibitors) herbicide. A significant increase in GR50 was observed between 28 and 56 days after herbicide application, signifying enhanced regrowth. The resistance of M. vaginalis to synthetic auxin and ALS inhibitors presents the need for farmers to consider alternative herbicides, such as PPO inhibitors, to prevent the development of resistant weeds.
Pollution index and load of total nitrogen and phosphate on agriculture and fisheries in Jatigede Reservoir Zulfia Kamila Mutia; Denny Kurniadie; Dadan Sumiarsa
Jurnal Akuakultur Indonesia Vol. 22 No. 2 (2023): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.22.2.126-133

Abstract

Jatigede Reservoir has an area of approximately 4,122 Ha, the purpose of Jatigede dam construction is to increase rice production with a range irrigation network system. Problems arising from the use of chemical fertilizers, regarding the development of agricultural land used to increase agricultural productivity, support food security and also activities in floating net cages (FNC) can result in a decrease in reservoir water quality, siltation of reservoirs, etc. Organic waste from FNC cultivation feed, for example nitrogen and phosphate. The purpose is to determine the pollution index of each observation station and the concentration of total nitrogen and total phosphor pollutant loads from the agriculture and fisheries sectors in Jatigede Reservoir so that it can be analyzed which activities have the most influence on pollution and determine effective countermeasures a decrease in water quality in Jatigede Reservoir. The quantitative method uses a survey method is processing data from laboratory tests using the Pollution Index and total nitrogen and phosphate pollution loads. The results of the highest pollution index are at station three of 6.08 with moderate pollution status caused by runoff from Cihonje inlet waste and FNC activities. The nitrogen parameter pollution load has a high amount of 192.13 kg/day then the amount of phosphate pollution load is 34.16 kg/day. As for good pollution control, by reducing the burden of pollution by involving the community in managing the reservoir environment, routine monitoring of reservoir water quality and mapping potential pollutant sources at each location so that problems will be quickly resolved. Keywords: agriculture, fisheries, Jatigede reservoir, pollution index, pollution load ABSTRAK Waduk Jatigede memiliki luas sekitar 4.122 Ha, tujuan pembangunan Waduk Jatigede adalah untuk meningkatkan produksi padi dengan sistem jaringan irigasi rentang. Permasalahan yang ditimbulkan terkait penggunaan pupuk kimiawi, mengenai perkembangan lahan pertanian yang digunakan untuk meningkatkan produktivitas pertanian dan mendukung ketahanan pangan dan juga kegiatan budidaya ikan karamba jaring apung (KJA) dapat mengakibatkan terjadinya penurunan kualitas air waduk, pendangkalan waduk, dan lain-lain. Limbah organik sisa pakan budidaya KJA yang terbuang ke dalam perairan contohnya yaitu nitrogen dan fosfat. Tujuan penelitian ini adalah untuk menentukan index pencemaran dari setiap stasiun pengamatan dan konsentrasi beban pencemar total nitrogen dan total fosfat dari sektor pertanian dan perikanan di Waduk Jatigede sehingga dapat dianalisis kegiatan mana yang paling berpengaruh terhadap pencemaran dan menentukan penanggulangan yang efektif untuk mencegah penurunan kualitas air di Waduk Jatigede. Metode yang digunakan adalah mix method (metode campuran). Metode kuantitatif menggunakan metode survey yaitu pengolahan data hasil uji laboratorium. Menganalisis tingkat pencemaran di setiap stasiun, menggunakan Index Pencemaran dan analisis beban pencemaran nitrogen dan fosfat. Hasil dari index pencemaran paling tinggi terdapat di stasiun tiga sebesar 6,08 dengan status tercemar sedang disebabkan oleh limpasan dari limbah inlet cihonje dan aktivitas KJA dan untuk beban pencemaran parameter nitrogen memiliki jumlah yang tinggi yaitu 192,13 kg/hari kemudian jumlah beban pencemaran fosfat 34,16 kg/hari. Adapun pengendalian pencemaran yang baik yaitu dengan pengurangan beban pencemaran dengan melibatkan masyarakat dalam pengelolaan lingkungan waduk, pemantauan rutin kualitas air waduk dan memetakan sumber-sumber pencemar potensial pada setiap lokasi sehingga permasalahan akan cepat teratasi. Kata kunci: beban pencemaran, index pencemaran, pertanian, perikanan, Waduk Jatigede
Determination of trophic status and carrying capacity of floating net cages in Jatigede Reservoir Kristina Marsela; Dadan Sumiarsa; Denny Kurniadie
Jurnal Akuakultur Indonesia Vol. 22 No. 2 (2023): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.22.2.147-155

Abstract

Aquaculture activities with floating net cages are essential to increase fishery production. However, The fish cages in the Jatigede Reservoir are illegal because they are against local government regulations. However, the people affected by the dam's construction still maintain it for economic reasons. Therefore, it is necessary to conduct research to address these problems by determining the carrying capacity of aquaculture and evaluating the trophic status of the waters. Determination of the carrying capacity of fish farming in the Jatigede Reservoir was conducted using the Beveridge method. by calculating the remaining phosphorus still available in the Jatigede Reservoir and evaluating the trophic state index based on three indicators: transparency, total phosphorus, and chlorophyll-a. The sampling was carried out by purposive sampling method. The calculation results show that the condition of the Jatigede Reservoir was eutrophic to hypertrophic with a trophic state index (TSI) value of 66-71. The results of calculating the carrying capacity of cage aquaculture using class 3 water quality standards. Indicate that Jatigede Reservoir waters can still increase fish production by 7,140.25 tons of fish/year, provided that fish replace the primary fish commodities cultivated. Keywords: aquaculture, cage aquaculture, carrying capacity, eutrophication, Jatigede Reservoir. ABSTRAK Kegiatan budidaya dengan keramba jaring apung (KJA) sangat penting untuk meningkatkan produksi perikanan. Keberadaan KJA di Waduk Jatigede merupakan kegiatan ilegal karena bertentangan dengan peraturan pemerintah setempat. Namun, masyarakat yang terkena dampak pembangunan waduk tetap mempertahankannya karena alasan ekonomi. Oleh karena itu, perlu dilakukan penelitian untuk mengatasi permasalahan tersebut dengan menentukan daya dukung perikanan budidaya dan mengevaluasi status trofik perairan. Penentuan daya dukung budidaya ikan di Waduk Jatigede dilakukan dengan menggunakan metode Beveridge dengan menghitung sisa fosfor yang masih tersedia di Waduk Jatigede dan mengevaluasi indeks status trofik berdasarkan tiga indikator yaitu transparansi, total fosfor, dan klorofil-a. Pengambilan sampel dilakukan dengan metode purposive sampling. Hasil perhitungan menunjukkan bahwa kondisi Waduk Jatigede adalah eutrofik hingga hipertrofik dengan nilai indeks kondisi trofik (TSI) 66-71. Hasil perhitungan daya dukung budidaya perikanan keramba dengan menggunakan baku mutu air kelas tiga. Perairan Waduk Jatigede masih dapat meningkatkan produksi ikan sebesar 7.140,25 ton ikan/tahun, dengan catatan ikan menggantikan komoditas ikan utama yang dibudidayakan. Kata Kunci: akuakultur, daya dukung, eutrofikasi, keramba jaring apung, Waduk Jatigede
Response of Eichhornia crassipes weeds to various doses of florpyrauxifen-benzyl herbicide application in cirata reservoir, Cianjur regency: English Nur Rezkia, Nita; Kurniadie, Denny; Dani, Umar
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Vol. 13 No. 1 (2025): Juni
Publisher : Fakultas Pertanian Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/agrivet.v13i1.13879

Abstract

The water hyacinth (E.crassipes) invasion has created a concerning ecological crisis in Cirata Reservoir, which is home to Southeast Asia's largest hydroelectric power plant and threatening the balance of freshwater ecosystems. Florpyrauxifen-benzyl herbicide emerges as a potential solution due to its high effectiveness and biodegradable nature. This study looked for to evaluate the efficacy of the herbicide containing Florpyrauxifen-benzyl in mitigating the presence of water hyacinth weeds at Cirata Reservoir, Cianjur Regency. This study utilized a Randomized Block Design containing four replications and seven treatments, including herbicide doses of 500, 750, 1000, 1250, and 1500 ml/ha, compared with hand weeding and control (without herbicide). Results showed that Florpyrauxifen-benzyl herbicide effectively suppressed water hyacinth growth up to 12 weeks after application (WAA). All tested herbicide doses resulted in lower weed biomass and weed damage percentage reaching 100% compared to control and hand weeding treatments. This study concludes that Florpyrauxifen-benzyl herbicide at doses of 500-1500 ml/ha effectively controls water hyacinth weeds in freshwater ecosystems, also providing a potential solution to the invasive aquatic weed problem at Cirata Reservoir.
Antagonistic Endophytic Fungi from Papaya Fruit Against Anthracnose Causing Pathogens (Colletotrichum gloeosporioides) on Papaya Fruit Nasahi, Ceppy; Amatullah, Hana Lathifah; Kurniadie, Denny
CROPSAVER Vol 6, No 2 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i2.47087

Abstract

Anthracnose disease caused by Colletotrichum gloeosporioides considered a major disease on papaya fruit. One way to control plant diseases is to use antagonistic fungi as biocontrol agents. Several antagonistic fungi can be found in plant tissues (endophytic fungi). This study aims to get endophytic fungi from papaya fruit antagonistic to the fungus C. gloeosporioides. The research used a Completely Randomized Design (CRD) consisting of four treatments and five replications on in-vitro and in-vivo tests. The results showed that three isolates of endophytic fungi found from papaya fruit were Fusarium sp., Aureobasidium sp., and Acremonium sp., which had an inhibition of 63.5%, 67.86%, and 7.52%, respectively. Fusarium sp. and Aureobasidium sp. are potentially considered antagonist fungi in controlling the fungus C. gloeosporioides in in-vitro testing based on the inhibition results were more than 60%. Aureobasidium sp. is considered potential antagonist fungi according to the colonization or growth of C. gloeosporioides mycelium inhibition that emerges on papaya up to 97%.