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All Journal Jurnal Silvikultur Tropika (JST) Agrifor : Jurnal Ilmu Pertanian dan Kehutanan JAS (Jurnal Agri Sains) E-JRM Jurnal Agroteknologi dan Kehutanan Tropika Jurnal Abdimas Untag Samarinda Taawun: Jurnal Pengabdian kepada Masyarakat
Jumani Jumani
Universitas 17 Agustus 1945 Samarinda
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Social Sciences Other

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Evaluation of Soil Revegetation Success Rate Ex-Pit Coal Mine in Kitadin site Embalut Kutai in East Kalimantan. I Gede Eka Budiana; Jumani Jumani; Maya Preva Biantary
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 16, No 2 (2017): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v16i2.2901

Abstract

PT. Kitadin Embalut Site is one of mining companies in Kutai Kartanegara Regency of East Kalimantan Province with total concession area 2,973 ha. Coal mining activities, both directly and indirectly impact on decreasing the environmental quality include pollution of water, air, noise, soil damage, damage to vegetation and wildlife disturbance and optimize reclamation activities. The objective of this study to evaluate the implementation of the success rate of reclamation and revegetation implemented Kitadin Embalut site. The type of research is descriptive, observation data collection and primer documents.Tool of research including: brunton compass, measuring tape, Suunto clinometer, Gauges, plastic rope. Vegetation analysis performed using a circular swath diameter of 17.8 m. The number of plots generated for each year of planting is 1 (one) with a distance of between 50-100 meters plot, the plot would be carried out observations of plant growth on the whole plant is located on the plot example, height, diameter, and canopy closure , For parameters where local species and wildlife presence also performed on this plot.The results of this study illustrate the level of success of revegetation in PT. Kitadin Embalut site in 2010, 2011, and 2012 with growth rates with an average diameter is 22.3 cm, 18 cm and 10 cm. High average in 2010, 2011, and 2012 is 12.8 meters, 8.3 meters and 6.5 meters. Canopy closure rates are in 2010.2011 and 2012 crop year was 71.2%, 60.6%, 53.4%, percentage of growth in 2010.2011 and 2012 at 88%, 77.7%, 83.6%.Based on the indicators of the success rate of growth in both diameter and height it can be concluded that the reclamation and revegetation in PT. Kitadin Embalut site considered good. In addition it should also be increased monitoring of overall plant growth so the company has a data base of all levels petumbuhan existing plants in the area PT. Kitadin Embalut site.
Kesesuaian Media Tumbuh Stek Akar Sukun Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.1

Abstract

The results showed that the average growth of roots at the age of 4 months was very real different between treatments and the best growth was in medium roasted husk fuel (SB), husk fuel humus (SBH) and then burn the chaff sand (SBP) with the following average husk fuel the growth of root length 4.33 cm, 3.33 cm and 2.00 cm.Shoot growth showed that the average growth of shoots at the age of 4 months was very real different between treatments and the best growth medium roasted husks (SB), husk fuel humus (SBH) and husk sand burns (SBP) with the following average husk fuel shoot growth was 3.67 cm, 3.00 cm and 2 cm. Best growth in medium roasted husks due to aeration and water absorption media quite well when too wet and dries quickly when the watering less easily monitored and medium roasted husks too sterile of fungus and nest for easy root growth and subsequent shoot will also grow.  
Plant Stand And Stability increment Sengon (Albizia falcataria) in Sub Lempake District of North Samarinda Taufik Rahman; Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 17, No 2 (2018): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v17i2.3625

Abstract

The purpose of this study was to determine or calculate the increment of diameter at breast height and increment of total height and stability of standing crops Sengon (Albizia falcataria) contained in the study site, to determine whether or not the activities thinning done on plants Sengon (Albizia falcataria) contained in the study site and to recommend spacing especially on the reforestation or afforestation activities that planting of this type.Becoming object in this research is a plant Sengon (Albizia falcataria) contained in these locations. Based on the results of a discussion with Mr. Jamal as the owner of the land and plant Sengon (Albizia falcataria), cultivated land Sengon (Albizia falcataria) approximately 0.5 hectares, the number of plants and more than 220 plants were planted in 2007 so that the age of the plant at the time this research was done approximately 9 years. While a spacing based on direct measurements at the study site approximately 3 m x 3 m.The number of plant samples Sengon (Albizia falcataria) taken with a sampling intensity by 25% thus totaling 55 plants and selected intentionally (purposive sampling).Based on the results of the measurement and the calculation of the diameter at breast height and the total height of the plant Sengon (Albizia falcataria) at the time of this study made at the time the plant was 9 years gained an average diameter at breast height of 23.79 cm, the average height of a total of 13 , 56 m, the average increment at breast height diameter of 2.64 cm / plant / year, the average increment of the total height of 1.51 m / plant / year and stability stands at 57.00.
POTENSI TEGAKAN TINGKAT TIANG DAN POHON DI AREAL KHDTK HUTAN DIKLAT LOA HAUR KECAMATAN LOA JANAN KABUPATEN KUTAI KARTANEGARA PROVINSI KALIMANTAN TIMUR Sukirno Sukirno; Muhammad Taufan Tirkaamiana; Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 18, No 2 (2019): Oktober 2019
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v18i2.4351

Abstract

Kegiatan Penataan Hutan Diklat diperlukan untuk memberikan gambaran yang jelas mengenai potensi hutan diklat yang akan dikelola. Dari Hasil kegiatan penataan tersebut akan diperoleh potensi mengenai keadaan hutan, topografi, iklim serta keadaan masyarakat yang ada di dalam dan sekitar hutan, yang mana data tersebut nantinya akan dipergunakan sebagai dasar dalam menyusun pengelolaan hutan lebih lanjut sesuai dengan kondisi lapangan dan program diklat yang akan dilaksanakan.Tujuan dari Penelitian ini adalah untuk mengetahui potensi tegakan tingkat Tiang di areal KHDTK Hutan Diklat Loa Haur Balai Diklat LHK Samarinda, Mengetahui potensi tegakan tingkat Pohon di areal KHDTK Hutan Diklat Loa Haur Balai Diklat LHK Samarinda dan Mengetahui keanekaragaman jenis tegakan yang mendominasi areal KHDTK Hutan Diklat Loa Haur Balai Diklat LHK Samarinda. Metode yang digunakan dalam Penelitian dan pengambilan data di lapangan adalah dengan menggunakan teknik purposive sampling. Adapun metode pengujian Potensi Tegakan dengan menggunakan Rumus Total Volume dalam satuan Kubikasi dimana parameter yang diukur meliputi  Diameter tegakan, Tinggi tegakan dan jumlah Populasi keseluruhan Plot penelitian.Sedangkan untuk nilai keanekaragaman jenis dihitung dengan menggunakan rumus Nilai Indeks Keragaman Shannon-Wiener 1992.Hasil yang didapatkan berdasarkan  rekapitulasi dari 5 plot sampel penelitian seluas 26 Ha dengan Intensitas Sampling sebesar 5% pada Areal KHDTK Hutan Diklat Loa Haur diperoleh hasil bahwa Potensi tegakan tingkat Tiang sebesar 111 m3 dengan jumlah populasi sebanyak 1.159 tegakan atau sama dengan 4,269 m3/ha dengan populasi 45 tegakan/ha. Sedangkan pada tingkat Pohon diperoleh potensi sebesar 189,7 m3 dengan jumlah populasi sebanyak 497 tegakan atau sama dengan 7,30 m3/ha dengan populasi 19 tegakan/ha.Nilai indeks keanekaragaman H’ pada kelompok jenis Meranti tingkat Tiang sebesar 2,14 dan tingkat pohon sebesar 1,72. pada kelompok jenis Rimba Campuran Nilai indeks Keanekaragaman tingkat Tiang sebesar 1,98 dan tingkat Pohon sebesar 2,31. Baik untuk Kelompok Meranti dan Kelompok Rimba Campuran Nilai Indeks Keanekaragaman H’ masih termasuk dalam kategori Sedang. Pada kelompok Kayu Indah nilai indeks Keanekaragaman tingkat Tiang sebesar 1,20 dan tingkat Pohon 0,94 nilai H’ pada kelompok jenis ini nilai indeks keanekaragamannya masih tergolong dalam kategori.Dan berdasarkan hasil penelitian terhadap 5 plot sampel seluas 26 Ha dengan intensitas sampling 5% diketahui bahwa tegakan yang memiliki nilai indeks keanekaragaman tertinggi baik untuk tingkat Tiang dan Pohon adalah jenis Mahang (Macaranga sp), dimana untuk tegakan tingkat Tiang diperoleh jumlah tegakan sebanyak 312 tegakan dengan nilai indeks keanekaragaman 0,153, sedangkan tegakan tingkat Pohon dengan jumlah tegakan sebanyak 94 pohon nilai indeks keanekaragamannya sebesar 0,137, dan nilai indeks keanekaragaman ini masih termasuk dalam kategori.
ANALISIS FINANSIAL USAHATANI DENGAN SISTEM AGROFORESTRY DI DESA MANUNGGAL JAYA KECAMATAN TENGGARONG SEBERANG KABUPATEN KUTAI KARTANEGARA Jumani Jumani; Taufan Tirkaamiana; Zikri Azham; Heni Emawati; Rahmat Andriansyah
JAS (Jurnal Agri Sains) Vol 6, No 1: Juni 2022
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/jas.v6i1.815

Abstract

ABSTRAKPemanfaatan lahan usaha tani dengan sistem agroforestry memberikan manfaat secara ekonomi dan konservasi lingkungan yang baik untuk masa mendatang. Tujuan penelitian untuk mengetahui kelayakan usahatani dengan pola agroforestry.  Metode pada penelitian ini menggunakan metode ekplorasi melalui observasi langsung dilapangan dengan menggunakan wawancara sebagai alat pengumpulan data. Data dan informasi dikumpulkan adalah semua biaya dan pendapatan diperlukan dalam usahatani ini sehingga dapat diketahui layak atau tidaknya usaha ini dijalankan. Hasil penelitian ini menunjukkan bahwa hasil dari analisis finansial menunjukkan Net Present Value 0 yaitu Rp. 514.470.711 pada suku bunga 10%, Net Benefit Cos Ratio 1 yaitu 20,37 pada suku bunga 10%, dan Internal Rate Of Return 12,91% pada tahun ke 6. Kata Kunci: Agroforestry, Manfaat ekonomi, Konservasi.  ABSTRACTUtilization of agricultural land with an agroforestry system provides economic benefits and good environmental conservation for the future. The purpose of the study was to determine the feasibility of farming with an agroforestry pattern. The method in this study uses the exploration method through direct observation in the field using interviews as a data collection tool. The data and information collected are all costs and income needed in this farming so that it can be known whether this business is feasible or not. The results of this study indicate that the results of the financial analysis show the Net Present Value 0, namely Rp. 514,470,711 at an interest rate of 10%, Net Benefit Cos Ratio 1 which is 20.37 at an interest rate of 10%, and Internal Rate Of Return 12.91% in year 6.  Keywords: Agroforestry, Economic benefits, Conservation.
INTENSITAS SERANGAN HAMA DAN PENYAKIT Shorea leprosula Miq TINGKAT SEMAI DI TAMAN NASIONAL KUTAI RESORT SANGKIMA KABUPATEN KUTAI TIMUR Jumani Jumani
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 14, No 1 (2015): Maret
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v14i1.1101

Abstract

The purpose of this study was to determine the intensity of pests and diseases on Shorea leprosula Miq Shorea seedlings and silvicultural treatments required.Research conducted by the sampling method with 5 subplot size of 1 m x 1 m with a physical analysis of the Shorea leprosula Miq seedling stage. Data were processed using the formula of frequency and intensity of attacks against Shorea leprosula Miq seedling stage.Results of research and observation showed that the research plots of 1 ha with a sampling of 5 sub plot size of 1 m x 1 m at the seedling stage Shorea leprosula Miq sampling observations of 5 subplots of 60 seedlings Shorea leprosula Miq, with a healthy physic as much as 13 seedlings, light attacked 36 seedlings, moderate attacked 8 and 3 dead seedling. Physically leaves seedling were mostly attacked by insects such as grasshoppers and cricket which causes leaf perforated.  Furthermore, from the results of the calculation frequency identification of pests and diseases by 78% and the intensity of pests and diseases by 25.4% which includes damaged, and based on the identification, it has not required the handling of seedlings.
RIAP TANAMAN ULIN (Eusideroxylon zwageri Teijsm & Binn) DI KHDTK SAMBOJAKECAMATAN SAMBOJA KABUPATEN KUTAI KERTANEGARA PROVINSI KALIMANTAN TIMUR Iman Suharja; Jumani Jumani
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 16, No 1 (2017): Maret
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v16i1.2589

Abstract

Riap Tanaman Ulin (Eusideroxylon zwageri Teijsm & Binn) Di KHDTK Samboja Kecamatan Samboja Kabupaten Kutai Kertanegara Provinsi Kalimantan Timur. Penelitian ini mempunyai tujuan untuk mengetahui riap diameter, tinggi dan volume tanaman jenis ulin (Eusideroxylon zwagery)Penelitian ini dilaksanakan di kawasan hutan Samboja yang termasuk dalam kawasan KHDTK Samboja Kecamatan Samboja Kabupaten Kutai Kertanegara Provinsi Kalimantan Timur.  Pengolahan data riap diameter tanaman Ulin (Eusideroxylon zwageri) masing-masing dihitung berdasarkan hasil pengukuran diameter tanaman dibagi dengan umur tanaman pada waktu pengukuran dilakukan.Hasil dari penelitian ini adalah rata-rata diameter, tinggi dan volume tanaman jenis ulin pada jalur 1 s.d 13 saat tanaman berumur 10 (sepuluh) tahun masing-masing sebesar 2,90 cm, 348 cm dan 0,25 cm3.  Rata-rata riap diameter, tinggi dan volume tanaman jenis ulin pada Jalur 1 s.d 13 saat tanaman berumur 10 (sepuluh) tahun masing-masing sebesar 0,29 cm/tanaman/tahun, 34,57cm/tanaman/tahun dan 0,00024cm3/ tanaman/tahun.Beberapa saran yang dapat disampaikan adalah perlunya untuk melanjutkan penelitian ini pada kelas umur tanaman selanjutnya.  Perlu adanya penelitian tentang hama dan penyakit tanaman terutama hama dan penyakit tanaman jenis ulin karena dikhawatirkan dapat mengganggu atau menghambat pertumbuhan/riap jenis tanaman ini.
PERTUMBUHAN TANAMAN GAHARU (Aquilaria sp.) DI DESA GIRI AGUNG KECAMATAN SEBULU KABUPATEN KUTAI KARTANEGARA PROVINSI KALIMANTAN TIMUR Datu Bandar Pramana; Jumani Jumani; Heni Emawati
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 11, No 2 (2012): Oktober
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v11i2.109

Abstract

The experiment was conducted at the Community Forestry area in the Giri Agung Village of Sebulu Sub District, Kutai Regency.  Planting implementation was in 2006.  Research carried out for about 2 effective months (from May to June 2012).  The object was Gaharu crop of 6 years old in the Giri Agung Village with the total samples 30 crops planted at the top of hill, and 30 crops planted at the slope.  The data was analysed with SPSS 12 t-test to determine the differences in growth at the top and on the slopes at the significant level 95%. The results showed that the Gaharu crop growth at top and at slope hill were not significantly different on both crop diameter and height growth by the t test.  The results of the statistical test using t-test showed that t-count is less than t-table which means there is no significant difference in the average of crop height at the top and slope.  There were several limiting factors for optimum growth of Gaharu.  They were soil factors, especially pH and limitation availability of some macro and micro nutrients, because almost all the nutrients required by the Gaharu is generally lacking.  Therefore, it needed an improvement or increase in the availability of nutrients by fertilizing with both organic and inorganic fertilizers that are required by the Gaharu.
PELUANG USAHA ATAP DAUN NIPAH BAGI MASYARAKAT DI KELURAHAN TIMBAU TENGGARONG KABUPATEN KUTAI KARTANEGARA PROVINSI KALIMANTAN TIMUR Mastono Mastono; Jumani Jumani; Mohammad Taufan Tirkaamiana
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 12, No 1 (2013): Maret
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v12i1.168

Abstract

Main utilization of Nipah tree is its leave as roofing material as the benefits that are generally known by the public. This benefits that provide added value should the presense of Nipah tree and it is not considered as a disturbing tree. Nipah tree beneficiary can be increased with the processed stems as animal feed of ducks and a variety of other benefits. By knowing the benefits then the palm leaves roof craftsman should also care for and manage the area as a source of raw material production. This study aimed to gain insight into the strengths, weaknesses, opportunities and threats as well as business strategies for sustainability in the roof af palm leaves. The data collection of this study using questionnaires and interviews with respondents craftsman palm leaf roof, with the number of respondents is 30 people. The data was analysed by using SWOT analysis. The results showed that business opportunity is still open and only there were few business competitors. Although the business opportunity is still open but the raw materials necessary to build that continues to exist and not be interruptedto facilitate the production of palm leaf roof. Roof of palm leaves businessmarketing opportunities still exist, but must have a strategy, although there is a chance the craftsman must remain priority order management and product quality still remains an alternative option after the metal roof price is quite expensive compared to the roof of palm leaves. Business opportunities palm leaves roof still promising but it still need efforts to exist and required product improvement, creativity, quality, and maintenance of raw material production area.
UJI MUTU FISIK DAN FISIOLOGIS BENIH POHON PENGHASIL GAHARU (Aquilaria microcarpa Baill.) BERDASARKAN FENOTIPE POHON INDUK DI KHDTK SAMBOJA KABUPATEN KUTAI KARTANEGARA Mira Kumala Ningsih; Maya Preva Biantary; Jumani Jumani
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.v14i2.1430

Abstract

Physical and physiological quality test of eaglewood tree (Aquilaria microcarpa Baill.) seeds based on mother tree phenotype from KHDTK Samboja, Kutai Kartanegara Regency.The objective of this research was to find out mother tree phenotype of Aquilaria microcarpa Baill. species in KHDTK Samboja, to find out seed physical quality (moisture content, 1000 seeds weight and range of seeds purity), seed physiological quality (seeds viability and vigor),  and to find out the relationship between both quality with the mother tree phenotype in KHDTK Samboja.  There were four mother tree from Aquilaria microcarpa Baill. species in KHDTK Samboja that bear fruit.  Each mother tree numbered with SBJ 01, SBJ 02, SBJ 03 and SBJ 04.  The results of observation to mother tree/stands phenotype was tree number SBJ 02 had the highest score and SBJ 03 had the lowest score.  The highest score tend to have more eaglewood content and lowest score had little eaglewood content.  But overall the trees grow well and did not show disturbance in growth.Physical quality test was conducted in laboratory of BPTKSDA Samboja, whereas physiological quality test was conducted in green house of BPTKSDA Samboja.  This research was conducted during nine weeks from March until May 2014.  The test procedure was adapted from Thomsen dan Diklev (2004) and refer to International Seed Testing Association (ISTA).  The data of each viability and vigor was analyzed by analysis of variance (anova). The result shows that seeds of A. microcarpa that collected from 4 (four) mother tree in KHDTK Samboja included in recalcitrant seed with moisture content between 33,45% until 52,48%. Recalcitrant seed was seeds that could not stored in longer time.  According to the result of data analyze ascertainable that percentage of seed purity between 64,3 % until 90,5 % with average of 1000 seeds weight was 37,0102 with renge between 32,3984 hingga 44,1686 grams.The result of multiple range test LSD shows that seeds from mother tree 4 had the best physiological quality with seeds viability as 64% and seeds vigor as 75,5% at confidence level 95%. Seeds physical and physiological quality was closely related to genetics factor, growth and environment.  Seeds physical and physiological quality that resulted was inversely proportional with eaglewood potential, in other words seeds mother tree that had the highest score will result small vigor.
Co-Authors Adrianus Renca Afi Racmat Slamet Akas Pinaringan Sujalu Aminuyati Datu Bandar Pramana Feny Fajriani Findia, Findia Hariyanto Triwibowo Heni Emawati Heni Emawati Heni Emawati Heni Emawati I Gede Eka Budiana Iman Suharja Irwandi Irwandi Ismail Bakrie Ismail Bakrie Lailan Syaufina M. Taufan Tirkaamiana Mastono Mastono Maya Preva Biantary Maya Preva Biantary MILASARI, LISA ASTRIA Mira Kumala Ningsih Mohammad Taufan Tirkaamiana Muhammad Sidiq Muhammad Taufan Tirkaamiana Rahmat Andriansyah Saraswati, Ety Taufan Tirkaamiana Taufik Rahman Zikri Azham