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Yardha .
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Agriculture, Biological Sciences & Forestry

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PENINGKATAN PERTUMBUHAN BIBIT OKULASI KARET ( Havea brasilliensis Mull arg) KLON ANJURAN DI POLIBEG DENGAN PPC Joko Supriyanto; Yardha .
Jurnal Agroekoteknologi Vol 2, No 2 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.601 KB) | DOI: 10.33512/j.agrtek.v2i2.643

Abstract

ABSTRACT Rubber is forest commodity which planted most in Jambi with total area of 558.570 ha (97 % of community’s forest) and most are very old plants. Regeneration in commercial level has been done, however the quality of seedling was doubtful. Formers have their own preferency on superior clone of rubber such as PB260, RRIC100, and BPM24 but growth characteristics of those clones were not very well known yet. Thertore, research on growth of suggested clones need to be done done with optimal application of fertilizer research was conducted at trial plot of BPTP Jambi from May to November 2008. The experimental design was Completelty Randomized Design (CRD) with factorial assessed factory were : (1) Suggessted clone of rubber consist of A1 (BPM24), A2 (RRIC100), A3 (PB260) and (2) concentration of PPC Bayfolan consist of 5 lenels : Bo (Control), B1 (1,5 ml L-1), B2 (1,5 ml L-1), B3 (3 ml L-1), B4 (4,5 ml L-1), B5 (4,5 ml L-1). Parameters abserved were apical, langth, dry meight of roots, dry meight of apical, leaf total width, and quality index. Results shomed that there was in feraction betueen apical leugth and dry meight of apical, the highest yield was tahen from combination of A2B2. Parameters of root dry weight, leaf total width and quality index pave significanthy effect, RRIC100 gone the highest volume. PPC Bayfolan 3mll-1 gove the best yield. In overall, clone treatments gone significant effect on growth of seedling in the polibags while effect of PPC bayfolan shomed that there was optimum concentration on each suggested clone.Keywords: Seedling Grafting Rubber, Havea brasilliensis Mull arg, superior clone, PPC   
KERAGAAN PRODUKSI BENIH KEDELAI DI PROVINSI JAMBI Hery Nugroho; Yardha .
Jurnal Agroekoteknologi Vol 5, No 1 (2013)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (73.285 KB) | DOI: 10.33512/j.agrtek.v5i1.544

Abstract

National soybean area harvested in the last decade tend to decline. This requires attention and study to find solutions to existing problems. This study aimed to identify implementation of seed production technology of soybeans in three agroecological land in Jambi Province, study the response of farmers to the technology used. This study was conducted from October 2010 through January 2011 in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland). The method used in this research is secondary data collection on soybean seed production technology that is the recommendation of Research Institute for Legumes and Umbiumbian. Furthermore, the survey method to collect primary data obtained through direct interviews with farmers in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland), Jambi Province. Purposive sampling method by farmers as respondents were taken of each region 10 farmers each breeder. The factors that affect farmers in seed production technologies analyzed in description. The results showed that the technology used in three different agro-ecological land this is due to soybean plants can be grown in various agro ecosystem with soil type, soil fertility, climate, and different cropping patterns so that constraints will differ from one agroecosystem other agroecosystem. With the technology is applied to the land tidal obtain the highest production compared with irrigated land and dry land. This happens because the tidal land application of cultivation technology of soybean seed production were adopted. From the results obtained with the expected higher seed production technology will be improved to increase the extent of unity.
PERFORMANCE OF PB 330 CLONE RUBBERS Yardha .
Jurnal Agroekoteknologi Vol 1, No 1 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.932 KB) | DOI: 10.33512/j.agrtek.v1i1.560

Abstract

ABSTRACTKeragaan Klon Karet PB 330 bertujuan untuk mengevaluasi tingkat adaptasi terhadap lingkungan, pertumbuhan tanaman, produktivitas lateks, mutu lateks dan sifat klon karet PB 330, potensi hasil kayu serta ketahanan terhadap hama dan penyakit. Evaluasi adopsi dan keragaan klon karet PB 330 dilakukan melalui pengumpulan data primer, data sekunder dan wawancara dengan peneliti maupun pelaku pengembangannya dengan menggunakan kuesioner terstruktur. Data sekunder diperoleh dari Perusahaan Perkebunan dan Tinjauan Pustaka. Data primer diperoleh melalui kunjungan lapang (field assessment) ke kebun produksi dan kebun pembibitan yang dilakukan pada bulan Oktober 2007. Evaluasi mutu hasil dilakukan melalui studi pustaka dan kunjungan ke pabrik pengolahan. Data hasil survey dianalisis secara deskriptif dan ditampilkan dalam bentuk tabel maupun gambar. Klon PB 330 ternyata memiliki pertumbuhan dan produksi yang sangat baik, dapat dipanen pada umur 4 tahun dengan produktivitas yang langsung tinggi (quick starter or precocious yielder). Dibanding klon PB 260 yang merupakan klon terbaik saat ini, klon PB 330 ternyata memiliki produktivitas sekitar 11% lebih tinggi. Dengan pertumbuhan lebih tegap, maka diperhitungkan PB 330 juga memiliki potensi produksi kayu yang tinggi, mempunyai daya adaptasi cukup baik terhadap lingkungan pertanaman karet di Indonesia dan belum ada laporan kendala gangguan hama dan penyakit yang serius di pertanaman komersial.Kata kunci: PB 330. klon karet unggul, keragaan, produksi.
APPLICATIONS OF ORGANIC FERTILIZER AND SEED TREATMENT OF CABBAGE IN LOWLAND AREAS JAMBI PROVINCE Salwati .; Yardha .
Jurnal Agroekoteknologi Vol 1, No 1 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (170.384 KB) | DOI: 10.33512/j.agrtek.v1i1.568

Abstract

ABSTRACTPermintaan terhadap sayuran organik telah meningkat pesat sejalan dengan pekembangan informasi dan pengetahuan tentang perlunya mengkonsumsi makanan sehat. Teknologi pertanian organik baru saja diadopsi petani sayur di kota Jambi. Karena itu, petani sayur memerlukan bimbingan melalui percontohan dan penyampaian informasi teknologi. Riset aksi tentang sistem pertanian organik tanaman selada dilakukan di kota Jambi dari September hingga Februari 2007. Beberapa paket teknologi telah diterapkan dan diuji yaitu: perlakuan benih (tanpa dan dengan Nutrifam SD), pupuk organik (Bio-super active, Jus Bumi, Nutrifarm AG, Botani and Bokasi+manure+botani). Percobaan ditata dalam Rancangan Acak Kelompok dengan perlakuan faktorial dan pengaruhnya dianalisis dengan uji beda nyata Duncan (DNMR). Parameter pengamatan meliputi jumlah daun, luas daun, lebar tanaman, tinggi tanaman, biomassa tamanan, dan tingkat serangan hama dan penyakit. Hasil penelitian menunjukan bahwa perlakuan benih tidak berpengaruh nyata terhadap pertumbuhan tanaman. Pupuk organik bitani memberikan pengaruh nyata terhadap bobot tanaman (1,45 kg), tinggi tanaman (15,73 cm), luas daun (57,94 cm2) dan tingkat serangan hama/penyakit (8,67%. Sistem pertanian organik memiliki prospek sangat cerah untuk dikembangkan.Kata kunci: Selada, Propinsi Jambi , sistem pertanian organik
EFEKTIVITAS APLIKASI BEBERAPA HERBISIDA SISTEMIK TERHADAP GULMA PADA PERKEBUNAN KELAPA SAWIT RAKYAT Yardha .; Araz Meilin
Jurnal Agroekoteknologi Vol 2, No 1 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.543 KB) | DOI: 10.33512/j.agrtek.v2i1.623

Abstract

ABSTRACTThe objective of the study were to find the dominant weeds in palm oil plantation before application of weeds control using effective active compound of systematical herbicide. Research done in Glorious Countryside Petaling, public plantation, River Gelam, Muaro Jambi, Jambi Province in January--Februari 2008. The research used active compound of herbicide gliphosate amineisoprophyll, 2,4 D-dimethyllamine, gliphosate isoprophyllamine + 2,4 D dimethyllamine, and triasulphuron 75%. The study was conducted using Randomized Completely Design, with 5 replicates. Data were analyzed by Duncan’s Multiple Range Test (DMRT). Data analysis of weeds vegetationusing SDR values. Result found 5 dominants weed species before herbicide application were Imperata cylindrica (with SDR value 27,8%), followed with Asystasia intrusa ( SDR = 9,4%), Affinae melastoma ( SDR = 9,2%), Repens panicum ( SDR = 8,2%), and Borreria alata ( SDR = 7,7)). Glyphosate isoprophyllamine of herbicide active compound which suitable to control grass weed species; while 2,4 D dimethyllamine active compound more suitable to control the wide leaf weed. Imperata cylindrica controlled with herbicide using gliphosate isoprophyllamine active compounds. Asystasia intrusa and Affinae melastoma controlled with 2,4 D dimethyllamines active coumpound. Weed competition reduce of crop production.Key words: active compound, herbicide, weed, palm oil
Co-Authors Araz Meilin Hery Nugroho Joko Supriyanto Salwati .