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EVALUASI KUALITAS PUPUK ORGANIK YANG BEREDAR DI PULAU JAWA BERDASARKAN PERMENTAN NO. 70/SR.140/10 TAHUN 2011 Triyani Dewi; Iswandi Anas; Suwarno Suwarno; Dedi Nursyamsi
Jurnal Ilmu Tanah dan Lingkungan Vol 14 No 2 (2012): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Banyak pupuk organik yang beredar di pasaran terutama di Pulau Jawa dengan mutu yang jelas. Berbagai kalangan, baik dari pihak konsumen/pengguna maupun pihak produsen/pembuat. Guna menjamin mutu produk dari suatu produsen pupuk organik yang akan dipasarkan, mendorong pemerintah untuk membuat peraturan yang berkaitan dengan semua aspek tentang pupuk organik. Pemerintah telah menetapkan suatu Peraturan Menteri Pertanian No.28/Permentan/SR.130/5/2009 yang kemudian diperbaharui dengan Peraturan Menteri Pertanian No.70/Permentan/SR.140/10/2011. Meskipun secara legal standar mutu pupuk organik telah dibuat, akan tetapi pada kenyataannya sangat sulit menentukan standar mutu pupuk organik dan di lapangan masih banyak ditemukan kualitas pupuk organik yang masih belum sesuai dengan persyaratan yang telah ditetapkan. Untuk meneliti kualitas pupuk organik yang beredar produksi dan dijual dipasar di Pulau Jawa, serangkaian studi telah dilakukan survei melalui pengambilan contoh pupuk organik di Jawa Barat, Jawa Tengah, dan Jawa Timur baik di tingkat petani, kios/agen, maupun produsen. Contoh-contoh pupuk organik tersebut dianalisis kadar air, pH, serta kandungan haranya yang meliputi kadar C-organik, N-total, rasio C/N, P2O5, K2O, Fe-total, Fe-tersedia, kadar logam berat Pb dan Cd di Laboratorium Terpadu Balai Penelitian Lingkungan Pertanian. Dari hasil survei, ternyata tidak ada satupun dari 60 contoh pupuk organik yang diuji yang memenuhi semua persyaratan pupuk organik menurut Permentan No. 70 Tahun 2011.

Konsentrasi Kadmium dan Timbal di Tanaman Mendong yang ditanam di Tanah Sawah dengan Aplikasi Azotobacter dan Arang Aktif Triyani Dewi; Reginawanti Hindersah
Agrikultura Vol 20, No 3 (2009): Desember, 2009
Publisher : Fakultas Pertanian Universitas Padjadjaran

Dampak kegiatan industri adalah pencemaran air dan tanah pertanian yang mengurangi daya dukung lahan untuk produksi tanaman. Pertumbuhan industri yang meningkat dengan pesat di wilayah Daerah Aliran Sungai memungkinkan terjadinya pencemaran berbagai jenis logam berat di lahan sawah. Tujuan penelitian ini adalah mengkaji kemampuan tanaman mendong (Fimbristylis globulosa) yang ditanam dengan inokulasi bakteri penghasil eksopolisakarida Azotobacter maupun arang aktif dalam menurunkan kandungan kadmium (Cd) dan timbal (Pb) dari tanah serta meningkatkan serapannya di tanaman mendong. Penelitian rumah kaca ini menggunakan Rancangan Acak Kelompok dengan empat perlakuan yang diulang tiga kali. Hasil penelitian menunjukkan bahwa saat mendong berumur 4 minggu, inokulasi Azotobacter dengan dan tanpa arang aktif menurunkan kandungan Pb tanah, tetapi baik Azotobacter maupun arang aktif tidak mempengaruhi kadar Cd dan Pb di tajuk dan akar mendong. Namun, empat minggu kemudian, Azotobacter maupun arang aktif meningkatkan Kandungan Pb di akar mendong.

REMEDIASI TANAH TERCEMAR KOBALT (Co) MENGGUNAKAN BIOREMEDIATOR DAN AMELIORAN Wahyu Purbalisa; Triyani Dewi
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 2 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Soil contains many elements, both macro, micro and metal. Metal elements are generally non-essential. Cobalt (Co) is one of the metallic elements but required in very small amounts for life. At high concentrations of cobalt can cause poisoning. One way to reduce high levels of cobalt in the soil by performing bioremediation plus ameliorant materials. This study consists of two stages. The first stage is the pot scale research with factorial design. The first factor is the bioremediator dose, namely : B0 : Without bioremediator (control), B1 : Bioremediator 20 kg ha-1, B2 : Bioremediator 50 kg ha-1 and the second factor is the application of ameliorant materials, namely: A0 : No ameliorant (control), A1: Biochar + compost (1: 5), A2 : Biochar + compost (2: 5), A3 : Activated charcoal + compost (1 : 5), A4 : Activated charcoal + compost (2 : 5). The second stage is the four best results from the first stage applied in situ on the lysimeter. The results showed that the treatment of bioremediator with a dose of 20 kg ha-1 and activated charcoal + compost (w: w = 2: 5) was able to reduce Co levels in the soil by 76%. The lowest Co level in rice that is equal to 3.06 mg kg-1 was obtained from the treatment of 50 kg bioremediator ha-1 plus active charcoal + compost ameliorant (1: 5).Â

Impact of compost and biochar from agricultural waste on reducing cadmium concentration and mancozeb residue in soil Zu'amah, Hidayatuz; Dewi, Triyani; Handayani, Cicik Oktasari; Gafur, Nurfitri Abdul; Arianti, Forita Dyah
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.2024.114.6307

The negative impact of excessive exposure to agrochemicals in shallot cultivation causes environmental pollution and human health. Biochar has the potential to absorb agrochemical contamination. This research aimed to investigate the effect of providing compost and biochar from agricultural waste on land quality, reducing the concentration of heavy metal cadmium (Cd) and mancozeb pesticide residues in soil and products in shallot. The experiment was carried out in shallot fields in Ngurensiti Village, Pati Regency, Central Java Province. Four different treatments, including combinations of biochar and compost, were applied, along with conventional controls. Data were analyzed using the F test (ANOVA) and Tukey's test using the Minitab statistical program version 16.0. The research showed that using biochar made from sugarcane bagasse, rice husk, corncob, and compost helped more soil bacteria grow and lowered Cd and mancozeb concentrations. In addition, treatment with biochar from sugarcane bagasse waste showed a decrease in Cd and mancozeb concentrations and a more significant increase in bacterial populations compared to other treatments (rice husk biochar and corncob biochar). Although there was a slight increase in Cd concentration in shallot leaves post-treatment, Cd levels in shallot bulbs remained within safe limits. This study shows that using biochar and compost from agricultural waste effectively improves soil quality, reduces heavy metal pollution, and lowers pesticide levels to support sustainable agriculture and protect people's health.

Optimization of PCR Analysis Based on Start Codon Targeted Markers (SCoT Markers) for Identification of Genetic Variation of Seaweed from Central Sulawesi Santoso, Tri Joko; Husni, Ali; Nugroho, Kristianto; Ya’la, Zakirah Raihani; Dewi, Triyani; Marhawati, Marhawati; Maemunah, Maemunah; Rosyida, Eka; Ndobe, Samliok
Journal La Lifesci Vol. 5 No. 1 (2024): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v5i1.1062

Seaweed is a fishery commodity that has high economic value because it contains carrageenan which can be used in the pharmaceutical, food, cosmetics, and industrial fields. Central Sulawesi Province is the second largest seaweed producer in Indonesia after South Sulawesi Province. The genetic diversity of seaweed in Central Sulawesi has not been studied much. Therefore, molecular-based characterization activities to identify the genetic variation of seaweed in the province are urgently needed. The purpose of the study was to optimize PCR techniques based on targeted start codon markers (SCoT markers) to identify the genetic diversity of seaweed accessions from Central Sulawesi Province. The results showed that the parameters for seaweed PCR amplification have been optimized. Of the fifteen SCoT primers, 10 of them can work to amplify seaweed DNA collected from several regions in Central Sulawesi. This is shown by the production of PCR result amplicons. PCR results also indicate polymorphism from the seaweed samples tested, although some seaweed samples have not been successfully amplified. The parameters of the PCR technique still need to be improved, especially the concentration of DNA prints, so that valid PCR results will be obtained for use in identifying seaweed genetic diversity.

The potential of biochar and compost from sugarcane bagasse on growth, yield, nutrient uptake of shallot and properties of an Inceptisol Zu'amah, Hidayatuz; Handayani, Cicik Oktasari; Dewi, Triyani; Arianti, Forita Dyah; Beti, Jajuk Aneka; Jufri, Akhmad; Rosjidi, Mochamad; Sahara, Dewi; Maro'ah, Siti; Syamsiyah, Jauhari
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7559

Excessive pesticide use and intensive shallot farming to satisfy high market demand can degrade soil quality and harm environmental sustainability. Sustainable agricultural practices, such as biochar and compost are alternatives to ensure long-term soil productivity and fertility. This study aimed to investigate the ability of biochar and compost made from bagasse waste to improve shallot growth, yield, nutrient absorption, and soil quality. The research used a factorial randomized block design in a greenhouse. The first factor was the application of biochar and compost (K1 = compost, K2 = biochar, K3 = biochar-compost (1:4/w:w) and K4 = biochar-compost (1:2/w:w), and the second factor was the dose of NPK fertilizer (0%, 50%, and 100% of the recommended dose). The planting medium used was an Inceptisol from shallot fields in Sukaharjo, Central Java. The variables measured included plant growth, yield components, soil chemical properties, and levels of N, P, and K in plants. The results showed that the combination of compost with 100% NPK fertilizer gave better results in plant growth, fresh and dry weight of plants and tubers, increased organic C, total N, and CEC of the soil, and increased the absorption of N, P, and K by plants.

Spatial distribution of water quality in water bodies influenced by agricultural activities Yustika, Rahmah Dewi; Sukarjo, Sukarjo; Dewi, Triyani; Yustiawati, Yustiawati; Handayani, Cicik Oktasari; Yanti, Delvi; Dariah, Ai
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8367

Agriculture is a major contributor to non-point source pollution due to the intensive use of agrochemicals. This study examined the spatial distribution of pollutants from agricultural activities in the Sumani sub-catchment, West Sumatra, Indonesia, which drains into Lake Singkarak. Thirteen water quality parameters were measured, including electrical conductivity (EC), total suspended solids (TSS), total dissolved solids (TDS), dissolved oxygen (DO), sulfate, nitrate, calcium, sodium, total phosphorus (TP), potassium, magnesium, chlorpyrifos, and mancozeb. Results showed significant variation in water quality across the sampling sites. Downstream areas had higher levels of TSS, TDS, and major ions, mainly due to agricultural and urban activities. The lowest TSS levels were recorded at a site within the lake, likely due to sediment settling. River water generally met drinking water standards; however, TP and DO concentrations in the lake exceeded regulatory limits, potentially influenced by floating net cage aquaculture. Principal Component Analysis identified three main sources of pollution: agricultural activities (34.87%), combined agricultural and urban influences (20.15%), and soil erosion (12.15%). These findings highlight the need for better erosion control, sustainable farming practices, and consistent water quality monitoring. Further research is crucial to understand the long-term effects of agriculture on water resources and to develop strategies that reduce environmental impacts.

RESISTENSI AZOTOBACTER TERHADAP MERKURI DAN PENGARUHNYA PADA PERTUMBUHAN JAGUNG (ZEA MAYS L.) DI TAILING TAMBANG EMAS Hindersah, Reginawanti; Adawiah, Aliya Zahrah; Suryatmana, Pujawati; Dewi, Triyani
Jurnal Teknologi Mineral dan Batubara Vol 20 No 3 (2024): Jurnal Teknologi Mineral dan Batubara Edisi September 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol20.No3.2024.1590

Rhizobacteria from the N-fixing Azotobacter genera can be used as bioremediation agents. Azotobacter produces exopolysaccharides (EPS) that chelate heavy metals and synthesize metabolites to promote plant growth. This research aimed to analyze the resistance of the Azotobacter consortium isolated from tailings contaminated with mercury (Hg) in synthesizing secondary metabolites in liquid cultures contaminated with Hg, as well as the effect of the Azotobacter consortium on corn growth in various tailings-based media compositions containing Hg. The Hg resistance test was carried out using a completely randomized design with 100, 200, and 400 mg/L HgCl2 in N-free media. The greenhouse experiment was designed in a randomized block design to treat various concentrations of organic matter in the tailings. The results showed that Azotobacter isolates were able to survive in Ashby broth containing Hg up to 400 mg/L, and the consortium produced significant amounts of auxin, gibberellin, cytokinin, oxalic acid, citric acid, and EPS. In addition, Azotobacter increased corn growth in Hg-contaminated tailings with the addition of 6:4 compost (tailings: compost). Azotobacter is resistant to Hg up to 400 mg/L; as a consortium, it can produce secondary metabolites and has a good influence on the growth of corn in tailings containing Hg.

Pengaruh Biochar, Kompos dan Pupuk Hayati Terhadap Pertumbuhan dan Produksi Tanaman Bawang Merah Varietas Bima Brebes Cicik Oktasari Handayani; Triyani Dewi; Anik Hidayah
Jurnal Hortikultura Indonesia (JHI) Vol. 12 No. 3 (2021): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.12.3.198-203

The planting of shallots in the rainy season in dry land and highlands usually face pests and diseases problem. The purpose of this study was to determine the effect of biochar, compost and biological fertilizers on the growth and yield of the Bima Brebes variety of shallots that were cultivated in the highlands. Compositional materials used for compost include manure, sugar cane cake, bran, lime, molasses, EM4 and water. The biochar is made from corn cobs and the biological fertilizer used is a biological fertilizer that has been traded under the trademark Actino. This research was conducted in Igirklanceng Village, Sirampog District, Brebes Regency. The experiment used a Randomized Block Design (RAK) with 3 replications. The treatments given were consisted of the ameliorant types, including of 8 treatment, namely control (T0), compost (T1), biochar (T2), biochar+compost (T3), biological fertilizer (T4), biochar+biological fertilizer (T5), compost+biological fertilizer (T6), biochar+compost+biological fertilizer (T7), farmer treatment (T8). The results of this study indicate that the application of compost, biochar and biological fertilizer (T7) can increase the growth of shallot plant , especially in the number of leaves by 19.05% compared to the control. The shallot wet weight and dry weight of tubers per plot were 36.60% and 25.14% higher than the control treatment. The results revealed that Bima Brebes shallot variety is not suitable for planting in the highlands because it produces the small tubers.

RESISTENSI AZOTOBACTER TERHADAP MERKURI DAN PENGARUHNYA PADA PERTUMBUHAN JAGUNG (ZEA MAYS L.) DI TAILING TAMBANG EMAS Hindersah, Reginawanti; Adawiah, Aliya Zahrah; Suryatmana, Pujawati; Dewi, Triyani
Jurnal Teknologi Mineral dan Batubara Vol 20 No 3 (2024): Jurnal Teknologi Mineral dan Batubara Edisi September 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol20.No3.2024.1590

Rhizobacteria from the N-fixing Azotobacter genera can be used as bioremediation agents. Azotobacter produces exopolysaccharides (EPS) that chelate heavy metals and synthesize metabolites to promote plant growth. This research aimed to analyze the resistance of the Azotobacter consortium isolated from tailings contaminated with mercury (Hg) in synthesizing secondary metabolites in liquid cultures contaminated with Hg, as well as the effect of the Azotobacter consortium on corn growth in various tailings-based media compositions containing Hg. The Hg resistance test was carried out using a completely randomized design with 100, 200, and 400 mg/L HgCl2 in N-free media. The greenhouse experiment was designed in a randomized block design to treat various concentrations of organic matter in the tailings. The results showed that Azotobacter isolates were able to survive in Ashby broth containing Hg up to 400 mg/L, and the consortium produced significant amounts of auxin, gibberellin, cytokinin, oxalic acid, citric acid, and EPS. In addition, Azotobacter increased corn growth in Hg-contaminated tailings with the addition of 6:4 compost (tailings: compost). Azotobacter is resistant to Hg up to 400 mg/L; as a consortium, it can produce secondary metabolites and has a good influence on the growth of corn in tailings containing Hg.

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