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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan AGRIVITA, Journal of Agricultural Science ULIN: Jurnal Hutan Tropis Journal of Community Service (Abdisci)
Marjenah, Marjenah
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Agriculture, Biological Sciences & Forestry Environmental Science Other

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Pemecahan dormansi benih kemenyan (Styrax sumatranus J.J. SM) dengan perlakuan perendaman dan pemeraman Marjenah, Marjenah; Kiswanto, Kiswanto; Simanjuntak, Janri; Hartati, Wahjuni; Syahrinudin, Syahrinudin
ULIN: Jurnal Hutan Tropis Vol 8, No 2 (2024)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v8i2.14860

Abstract

Kemenyan (Styrax sumatranus J.J. Sm) termasuk salah satu jenis tumbuhan penghasil resin. Getah kemenyan merupakan komoditi khas Sumatra Utara yang bernilai ekonomi tinggi.  Tujuan penelitian ini untuk mengetahui pengaruh variasi perendaman dan pemeraman perkecambahan benih terhadap persentase kecambah, daya kecambah, dan laju perkecambahan kemenyan (Styrax sumatranus J.J. Sm). Penelitian ini menggunakan pola Rancangan Acak Lengkap Faktorial dengan      perlakuan perendaman (A) yang terdiri dari 4 level yaitu A0 (tidak direndam) A1 (direndam dalam air mengalir), A2 (direndam dalam air kelapa), A3 (direndam dalam air biasa) dan perlakuan pemeraman (B) yang terdiri dari 4 kategori yaitu  B0 (tidak diperam), B1 (diperam 1 hari), B2 (diperam 2 hari), B3 (diperam 3 hari). Dua faktor tersebut dikombinasikan sehingga terdapat 16 kombinasi perlakuan dan 3 kali ulangan untuk setiap kombinasi perlakuan. Hasil penelitian menunjukkan bahwa ada pengaruh antara kombinasi pemeraman dan perendaman terhadap benih kemenyan (Styrax sumatranus J.J. Sm). Benih kemenyan yang direndam dengan air kelapa serta lamanya pemeraman, memberikan pengaruh terhadap beberapa parameter yaitu persentase hidup kecambah sebesar 67%, rataan daya kecambah sebesar 75%, rata-rata hari berkecambah yaitu 82 hari.
PERTUMBUHAN HUTAN TANAMAN JATI (Tectona grandis Linn.f.) DI KALIMANTAN TIMUR Murtinah, Veronika; Marjenah, Marjenah; Ruchaemi, Afif; Ruhiyat, Daddy
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 14, No 2 (2015): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v14i2.1435

Abstract

The Growth of Teak Plantation Forest in East Kalimantan. Teak is one of the most important tropical timber in the international timber market because of the various advantages it has and the type of wood that is very valuable for forestry plants. Teak has been known and cultivated for a long time, particularly in Java. In East Kalimantan, Teak has been developed by public and private companies , with a growth of diverse.The growth of teak stands in East Kalimantan in general showed a decline in growth with increasing stand age; diameter and height growth of stands highest in the early phase of growth in the range of 1-5 years of age, then decline gradually and growth has declined after the 12 year old stands; up to 12 year old stands generally teak growth in East Kalimantan showed growth (increment) in diameter and a height higher than the other locations teak plantation in Java.
RESPON PERTUMBUHAN SEMAI CABUTAN JENIS SALAM (Syzygium polyanthum (Wight) Walp) DI PERSEMAIAN PADA PERLAKUAN NAUNGAN BERBEDA Marjenah, Marjenah; Kiswanto, Kiswanto; Rambe, Ilham Alfarada
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 24, No 1 (2025): Maret 2025
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v24i1.7971

Abstract

Sebagai salah satu usaha guna memperbaiki lahan terdegradasi dan untuk mempertahankan keanekaragaman hayati yang ada, serta berpartisipasi dalam mendukung usaha peningkatan ekonomi pada masyarakat yang berbasis pembudidayaan tanaman, maka  dipandang perlu untuk melakukan penelitian tentang penyediaan bibit berkualitas. Tujuan dari  penelitian ini adalah  untuk mengetahui pengaruh perlakuan naungan terhadap persen hidup semai, dan mengetahui pengaruh naungan yang berbeda-beda terhadap pertumbuhan semai cabutan salam. Penelitian ini dirancang dengan rancangan acak kelompok (RAK), terdiri dari satu faktor yaitu: Faktor naungan yang terdiri dari 4 jenis perbedaan naungan: S0 (Tanpa Naungan, intensitas cahaya 100%), S1 (Dinaungi sarlon 1 lapis, intensitas cahaya 51%), S2 (Dinaungi sarlon 2 lapis, intensitas cahaya 45%), S3 (Dinaungi sarlon 3 lapis, intensitas cahaya 40%). Setiap perlakuan diulang 3 kali. Persen hidup pada perlakuan S1, S2, dan S3 sebesar 100%, serta untuk S0 sebesar 75,56%. Perlakuan naungan sarlon yang berbeda, berpengaruh sangat signifikan terhadap pertambahan tinggi semai, diameter batang, dan jumlah helai daun semai. Pertambahan tinggi semai cabutan salam tertinggi terdapat pada perlakuan S1 dengan rata-rata pertambahan tinggi 30,94cm. Adapun Rata-rata pertambahan jumlah helai daun salam berkisar antara 14 sampai 19 helai  daun, dan untuk pertumbuhan diameter tertinggi ada pada perlakuan S1 dengan rata-rata penambahan diameter 0,53 mm setiap bulannya. Dari penelitian ini penggunaan sarlon 1 lapis sangat direkomendasikan untuk pembudidayaan salam.
The potential of stingless bees cultivation with agroforestry techniques in “Kebun Sidang” Antutan Village, Bulungan District, Indonesia Marjenah, Marjenah; Harmonis, Harmonis; Orvalinda, Ona
ULIN: Jurnal Hutan Tropis Vol 9, No 1 (2025)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v9i1.15881

Abstract

Honey, which is generated by honey bees, is one of the prominent non-timber forest products among the population. The stingless bee is the species of bee that has the most potential for cultivation (local name: Kelulut). The stingless bee is the species of bee that has the potential to be domesticated. The stingless bee is a little black insect with a 3 to 4 mm body length and an 8 mm wing span. This study sought to identify the pattern of agroforestry in the evolution of stingless bee cultivation. To determine the plant types and possibilities for stingless bee feed, as well as the viability of growing stingless bee agriculture in the Community Forest of Antutan Village, Bulungan Regency. The descriptive approach and interviews and field surveys are utilized for sample purposes. The results revealed that the applied agroforestry pattern was meliponiculture, or the production of stingless bees in conjunction with plantations and agriculture. There are nine plant species with a total of 64 individuals that could serve as stingless bee food. For the business feasibility value, the R/C ratio is 1.9 and the B/C ratio is 0.9, which shows that the firm is both profitable and possible to operate.
The Effect of Fertilization on Growth Response of Porang (Amorphophallus oncophyllus Prain) in Dipterocarp Forests, East Kalimantan Indonesia Kasransyah, Kasransyah; Marjenah, Marjenah; Rujehan, Rujehan; Karyati, Karyati; Ruslim, Yosep; Matius, Paulus; Syahrinudin, Syahrinudin; Soetioso, Rusdi; Wasli, Mohd Effendi; Toma, Takeshi
AGRIVITA Journal of Agricultural Science Vol 47, No 2 (2025)
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.v47i2.4357

Abstract

The use of forest land under dipterocarp for agroforestry is hindered by the problem of low fertility, necessitating the application of fertilization from organic materials, such as manure, compost, or biochar. These materials provide essential nutrients, including nitrogen, carbon, phosphorus, and potassium, increase cation exchange capacity (CEC), neutralize the pH, and enhance soil texture and water retention. This study aims to determine the effect of fertilization on the growth of Porang in the dipterocarp forest in PT Utama Damai Indah Timber East Kalimantan. It was conducted from August 2021 to July 2022. A completely randomized design (CRD) was used with three replications at five treatment levels: manure 1000 g/plant (P1), compost 1000 g/plant (P2), biochar + manure 1000 g/plant (P3), biochar + compost 1000 g/plant (P4), and control without fertilization (P0).  Data analysis was performed using ANOVA, followed by the Duncan test at a 10% level. The results showed that applying organic fertilizer enhanced soil's physical and chemical properties significantly. The combination of biochar and manure, at 1000 g/plant, proved to be the most effective treatment for increasing the height and yield of Porang compared to the control and other treatments.
EMPOWERMENT OF BUKIT PARIAMAN VILLAGE COMMUNITY IN MANAGING HOUSEHOLD ORGANIC WASTE INTO ECO ENZYME-BASED PRODUCTS TO IMPROVE ENVIRONMENTAL SANITATION Rosamah, Enih; Hastaniah, Hastaniah; Marjenah, Marjenah; Handayani, Sri Asih; Jufriah, Jufriah; Husien, Nani
Jurnal Abdisci Vol 2 No 8 (2025): VOL 2 NO 8 TAHUN 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/abdisci.v2i8.763

Abstract

Abstract: Organic waste, perticularly from household remains, can be easily decomposed naturally without human intervention. When processed correctly and properly, organic waste from households offers many benefits, such as being converted into animal or livestock feed, organic fertilizer, compost, biogas, and eco enzyme. The nature of eco enzyme is an antimicrobial that inhibits pathogens, makes it useful as a cleaning agent. Community Service Activities involving approximately 15 RT (Neighborhood Associations) in Bukit Pariaman Village, Tenggarong Seberang District (especially to local houswives), provided training on making Eco Enzyme and the application of eco enzyme in daily life needs. In practice, eco enzyme is used as a multi-purpose cleaning fluid, including for detergent, air purifier, floor cleaner, toilet cleaner, kitchen cleaner, odor remover, dishwashing liquid, fruit and vegetable cleaner, hair and skin care, pesticides, insecticides. Eco enzyme is considered environmentally friendly because it is processed entirely from organic materials. The community service activities were successfully conducted and received enthusiasm from training participants who actively asked questions, engaged in discussions, and practiced making eco enzyme, and after a three-month fermentation period, they successfully produced eco enzyme products. Keywords: Eco Enzyme, Bukit Pariaman Village, Cleaning Agent
Deforestasi dan degradasi hutan di KPHP Telake Kalimantan Timur Awaluddin, Awaluddin; Suhardiman, Ali; Karyati, Karyati; Marjenah, Marjenah; Kiswanto, Kiswanto; Sulistioadi, Yohanes Budi
ULIN: Jurnal Hutan Tropis Vol 9, No 2 (2025)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v9i2.17513

Abstract

Metode penelitian dilakukan dengan cara menganalisis data deforestasi dan degradasi hutan yang dikeluarkan versi KLHK dan data deforestasi dan degrdasi hutan versi TMF dari Pusat Penelitian Gabungan Komisi Eropa (The European Commission’s Joint Research Centre ). Berdasarkan hasil yang diperoleh yaitu terdapat perbedaan jumlah luasan area terdeforestasi dan area hutan terdegradasi dari versi KLHK dan versi TMF, deforestasi periode tahun 2018-2019 versi peta KLHK menunjukkan bahwa angka deforesatasi yaitu seluas ±42,59 hektar, sedangkan angka deforestasi versi peta TMF yaitu seluas ±47,73 hektar, lebih tinggi angka deforestasi versi peta TMF sebesar ±5,14 hektar. Luas deforestasi periode tahun 2019-2020 versi peta KLHK seluas ±672 hektar dan versi peta TMF seluas ±16,14 hektar lebih tinggi angka deforestasi versi peta KLHK ±656,76 hektar. Deforestasi periode tahun 2020-2021 versi peta KLHK seluas ±61,05 hektar, sedangkan luasan deforestasi versi peta TMF seluas ±41,67 hektar, lebih tinggi ±19,38 hektar angka deforestasi versi peta KLHK. Deforestasi periode tahun 2021-2022 versi peta KLHK tidak terdapat area deforestasi, sedangkan angka deforestasi versi peta TMF adalah seluas ±25,00 hektar. Degradasi hutan versi peta KLHK periode tahun 2018-2019 tidak terdapat area yang terdegradasi. Sedangkan degradasi hutan versi peta TMF seluas ±293,55 hektar. 
Co-Authors Awaluddin Awaluddin Handayani, Sri Asih Harmonis Hastaniah, Hastaniah Husien, Nani Jufriah, Jufriah Karyati Karyati Kasransyah, Kasransyah Kiswanto Kiswanto Orvalinda, Ona Paulus Matius Rambe, Ilham Alfarada Rosamah, Enih RR. Ella Evrita Hestiandari Ruchaemi, Afif Ruhiyat, Daddy Rujehan, Rujehan Simanjuntak, Janri Soetioso, Rusdi Suhardiman, Ali Syahrinudin, Syahrinudin Toma, Takeshi Veronika Murtinah, Veronika Wahjuni Hartati Wasli, Mohd Effendi Yosep Ruslim