Articles

Found 8 Documents
Search

Respon Klon Karet terhadap Frekuensi Penyiraman di Media Tailing Pasir Pasca Penambangan Timah Inonu, Ismed; Budianta, Dedik; Wiralaga, Ali Yasmin Adam; Umar, Muhammad; Yakup, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (27.11 KB)

Abstract

Sand tailings derived from tin post-minings activities have high porosity, low water holding capacity, and low organic matter content.  These conditions causes soil water deficit, especially in dry season. To increase the successful of  sand tailings revegetation  with rubber tree,  it is important to select some rubber tree clones based on their adaptability on the sand  tailings conditions, especially drought stress. This research aimed to study the response of several rubber tree clones to the frequency of watering on sand tailings. The experiment was conducted in a plastic house at the experimental station of Agrotechnology  Study Program of Bangka Belitung University, Sungailiat for 4 months. The experimental design  was a factorial randomized block design with two factors and three replications. The first factor was the frequency of watering (every day, every 3 days, and every 5 days), the second factor was a combination of recommended rootstock clones and recommended latex clones (clone GT 1 + PB 260, GT 1 + IRR 118, and PB 260 + BPM 24). The results showed that watering every 5 days caused  drought stress resulted in impaired  growth of rubber  in sand tailings media derived from tin post-mining.  The combination of rootstocks and scions PB  260 + BPM 24 and PB 260 + IRR118 were categorized as moderately tolerant clones while GT 1 + PB 260 was categorized as sensitive clones to drought stress in the  sand tailings media.   Keywords: drought tolerance, watering frequency, rubber tree clones, sand tailings
Respon Klon Karet terhadap Frekuensi Penyiraman di Media Tailing Pasir Pasca Penambangan Timah Inonu, Ismed
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar | Full PDF (147.912 KB)

Abstract

Sand tailings derived from tin post-minings activities have high porosity, low water holding capacity, and low organic matter content. These conditions causes soil water defi cit, especially in dry season. To increase the successful of sand tailings revegetation with rubber tree, it is important to select some rubber tree clones based on their adaptability on the sand tailings conditions, especially drought stress. This research aimed to study the response of several rubber tree clones to the frequency of watering on sand tailings. The experiment was conducted in a plastic house at the experimental station of Agrotechnology Study Program of Bangka Belitung University, Sungailiat for 4 months. The experimental design was a factorial randomized block design with two factors and three replications. The fi rst factor was the frequency of watering (every day, every 3 days, and every 5 days), the second factor was a combination of recommended rootstock clones and recommended latex clones (clone GT 1 + PB 260, GT 1 + IRR 118, and PB 260 + BPM 24). The results showed that watering every 5 days caused drought stress resulted in impaired growth of rubber in sand tailings media derived from tin post-mining. The combination of rootstocks and scions PB 260 + BPM 24 and PB 260 + IRR118 were categorized as moderately tolerant clones while GT 1 + PB 260 was categorized as sensitive clones to drought stress in the sand tailings media.Keywords: drought tolerance, watering frequency, rubber tree clones, sand tailings
Toleransi Beberapa Klon Karet (Hevea brasiliensis Muell. Arg.) pada Media Tailing Pasir Pasca Tambang Timah Inonu, Ismed; Budianta, D; Umar, M; Wiralaga, AYA
ENVIAGRO Vol 3, No 1 (2010): ENVIAGRO, APRIL 2010
Publisher : Universitas Bangka Belitung

Show Abstract | Original Source | Check in Google Scholar

Abstract

The objective of this study was to evaluate the tolerance of the six combinations of the recommended rubber clones in the tin post-mining tin sand s  media . The experiment  conducted in Reclamation Nursery of PT Koba Tin Sub District of Koba District of Central Bangka during 4 month.  This experiment was designed according to completely randomized design. The Treatment factor is a combination of rootstock and scion clones, consisting of (GT 1 + BPM 24), (GT 1 + PB 260), (1 + IRR GT 118), (PB 260 + BPM 24), (PB 260 + PB 260), and (PB 260 + IRR 118). Each treatment consisted of three replications and each replication consisted of three plants. The rubber tree seedlings are planted on mixing of s sand, top soil and manure chicken manure (2:1:2, v/v), and on non-mining land media as a control.  The variables are percentage of seedling, shoot length, shoot diameter, number of leaf petiole, leaf area, shoot biomass, root biomass, total biomass, specific leaf area ratio and root shoot ratio was measured at 20 MST. Data were analyzed statistically with analysis of variance and Duncan multiple range test. The growth of rubber seedlings on sand s media were ameliorated with top soil and chicken manure was lower than in non-mining soil media. Based on the results of tolerance tests,of  six combinations of clones, the combination of GT 1 clone as rootstock and clone PB 260 as entres was classified quite tolerant category and produce better growth than the other clones.
Aplikasi Ekstrak Daun Merapin (Rhodamnia cinerea) untuk Menghambat Colletotrichum capsici pada Benih Cabai Diaguna, Riduan; Inonu, Ismed; Kusmiadi, Riwan
JURNAL ENVIAGRO Vol 8, No 1 (2015): ENVIAGRO
Publisher : Universitas Bangka Belitung

Show Abstract | Original Source | Check in Google Scholar

Abstract

R. cinerea leaf is one of leaves with anti-fungi compound that is able to inhibit the growth of C. capsici. This research is aimed to know the impact and the effectiveness as anti-fungi of R. cinerea leaf extract in inhibiting the growth of C. capsici on the chili seeds. This research was conducted at Biology Laboratory, Experimentation and Research Station of the Faculty of Agriculture, Fishery and Biology Bangka Belitung University. The experimentation was carried on Januari 2014 to April 2014. The experiment was conducted in two stages, using randomized completely design with 6 level of treatment (research I), and 4 level of treatment (research II), and 3 replication. Observation data were analysed using analysis of variance (ANOVA) with the level of significance 95%. If the result showed significantly effect, it continued to be tested with Duncan’s Multiple Range Test (DMRT) (research I), and the Least Significance Difference (LSD) (research II). The result showed that the concentration of R. cinerea extract has significantly impact in inhibiting the growth of C. capsici on the chili seeds. The most effective concentration was found on the level of concentration 35% (90,9%) with the least percentage of affected seeds.
Implementasi GAP (Good Agriculture Practice) Lada dan Pengaruhnya Terhadap Produktivitas Lada di Desa Petaling Banjar, Kecamatan Mendo Barat Setiawan, Fahri; Inonu, Ismed; Sitorus, Rostiar
JURNAL ENVIAGRO Vol 8, No 2 (2015): ENVIAGRO
Publisher : Universitas Bangka Belitung

Show Abstract | Original Source | Check in Google Scholar

Abstract

Indonesia is the second pepper producing country in the world, instead of Vietnam. Bangka Belitung as one of pepper producing area in Indonesia has to increase quality  and quantity through Good Agriculture Practice (GAP). Petaling Banjar is one of village which apply GAP system. This research aimed to identify condition of implemenation GAP of pepper in Pataling Barat Village, pepper producitvity, and to analyze the effect of GAP implementation to pepper productivity in Petaling Banjar village. The method used survey to 36 farmers as sample. Data analysis used Double Linear Regression, F-test and T-test. The results showed that land selection and harvest and post-harvest handling variables are in “well’ categories. Water management and seed planting variables are in “good” category. Cultivation and pest and disease control management variables are in “enough” category. Generally, GAP implemented by farmers in Petaling Banjar village categorized to “Good”. Pepper production rate is 0,5 kg/plant and pepper productivity is 798,85 kg/ha. Based on F-test, GAP of pepper gives significant effect to pepper productivity. T-test showed that seed planting gives significant effect to pepper production. Double linear regression test showed that seed planting increase pepper productivity highly with partial-coeficient regression value is 1,503, land selection is 1,068, cultivation is 0,956, water management is 0,737, soil management is 0,279, harvest and post-harvest is 0,214, and pest and disease control management is 0,044.
Pemanfaatan Kompos Bulu Ayam untuk Budidaya Selada di Lahan Tailing Pasir Bekas Penambangan Timah Inonu, Ismed; Kusmiadi, R.; Mauliana, N.
Jurnal Lahan Suboptimal Vol 5, No 2 (2016): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (53.953 KB)

Abstract

Inonu, et.al. Use of Composted Chicken Feathers for Lettuce Cultivation in Sand Tailings of ex Tin-Mining Site. JLSO 5(2):145-152.Chicken feathers is a solid waste which can be composted for sand tailings of ex tin-mining site ameliorating. The objective of this research was to analysis the  different doses of composted chicken feathers to obtain the proper dosage for growth and production of lettuce grown on sand tailings of ex tin-mining site. This research used experimental method with Randomized Completely Block Design (RCBD). The treatment factor were doses of composted chicken feathers with five levels (5.0; 7.5; 10; 12.5; 15 tons/ha of chicken feathers) and 20 tons/ha of chicken manure as a control. The results showed  growth and production of lettuce were treated with 20 tons / ha of chicken manure is higher than all treatment of doses of composted chicken feathers. Sand tailings of ex tin-mining site which is treated 12.55 tons/ha composted chicken feathers produced the highest growth and production of lettuce.
Rona Awal Lingkungan Calon Tapak PLTN Sebagin, Bangka Selatan Nurtjahya, Eddy; Kartika, Kartika; Inonu, Ismed; Franto, Franto
Jurnal Forum Nuklir JFN VOL 11 NO 2 NOVEMBER 2017
Publisher : BATAN

Show Abstract | Original Source | Check in Google Scholar | Full PDF (450.076 KB)

Abstract

Evaluasi tapak adalah penting dalam penentuan penerimaan tapak PLTN, dan kelayakan calon tapak PLTN di Pulau Bangka dipublikasi tahun 2013. Penelitian rona awal lingkungan dari calon tapak Sebagin, Kabupaten Bangka Selatan ini bertujuan mendokumentasikan data dasar bagi diskusi tentang keberlanjutan pembangunan PLTN di masa mendatang. Penelitian ini dilakukan melalui wawancara masyarakat di 53 desa / kelurahan di Kabupaten Bangka Selatan, Bangka Tengah, dan Bangka untuk memperoleh data lama aktivitas dan laju inhalasi penduduk, produksi pertanian dan peternakan beserta luas tanam, umur panen, frekuensi penyiraman, jangka waktu tanam dan hold-up time, konsumsi karbohidrat, sayuran, daging, ikan, telur, susu, minyak goreng, kebutuhan air. Selain itu, data dilengkapi dengan hasil studi literatur dari berbagai sumber. Wilayah studi berupa lahan pertanian, berpenduduk 160.290 jiwa, dengan kelompok umur di atas 15 tahun 78,6% dan laju pertumbuhan 3,14%. Dari  topografi, Sebagin dipandang aman dari potensi banjir akibat tsunami dan luapan sungai. Sebagian besar kebutuhan beras dan sebagian sayuran dan sebagian besar minyak goreng dipasok dari luar provinsi. Separuh kebutuhan buah berasal dari luar kabupaten. Waktu tanam berbagai tanaman pertanian rata-rata 101 hari, dengan frekuensi tanam 2 kali setahun dan hold-up time 1-4 hari. Berbeda dengan daging ayam, sebagian besar daging sapi dan kambing dipasok dari luar provinsi, sementara sebagian kebutuhan telur dan daging ayam buras disuplai dari luar kabupaten. Sebagian besar kebutuhan ikan laut berasal dari tangkapan di provinsi. Sumur adalah sumber air minum utama, yang memiliki tinggi muka air tanah bervariasi sekitar 7-15 m. Irigrasi lebih bertumpu pada air hujan, dan air kolong bekas penambangan timah. Dosis maksimum radioaktif diperkirakan terletak di daerah huni 4 km sebelah Utara Sebagin, sementara konsentrasi maksimum terletak di Selat Bangka. Dosis radioaktif efektif tahunan maksimum untuk kelompok kritis adalah 1,71 µSv/a, jauh di bawah batas lepasan 300 µSv/a. Hasil pengukuran dosis radiasi latar bervariasi antara 0,64 mSv dan 2,25 mSv.
Pepper Plant Growth of 1 Year Old (Piper nigrum L.) in Post-Tin Mining Area with Different Single Inorganic Fertilizer Dosages Fatwa, Eeza; Inonu, Ismed; Asriani, Euis
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 3 No 1 (2019): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Original Source | Check in Google Scholar | Full PDF (557.136 KB)

Abstract

Many research had been done about pepper cultivation in post tin mining area, but there are still have problems with the growth of pepper plants. This is caused by the rapidly decreasing of nutrients available in the post-tin mining area. This research conducted to know the growth response of one-year-old pepper in post-tin mining area by different single inorganic fertilizer doses. And obtaining single inorganic fertilizer dose which gives the best response to the growth of one-year-old pepper in the post-tin mining area. This research began from January to May 2018 in post tin mining area owned by PT. Timah in Dwi Makmur Village, Merawang, Bangka. This study used a Completely Randomized Design (RBD) with a single factor. The factors used were dosages of Single inorganic fertilizer  consist DS0(Urea 105 g, TSP 90 g, KCL 80 g), DS1(Urea 125 g, TSP 110 g, KCL 100 g), DS2(Urea 145 g, TSP 130 g, KCL 120 g), DS3(Urea 165 g, TSP 150 g, KCL 140 g), and DS4(Urea 185 g, TSP 170 g, KCL 160 gr). The single dose of inorganic fertilizer showed no significant effect on each growth of variable in pepper, it is possible that the given dose was not effective to stimulate plant growth.