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HUBUNGAN JUMLAH BARIS KACANG-KACANGAN TERHADAP HAMA TANAMAN JAGUNG DAN TANAMAN KACANG-KACANGAN Megawati, Dwi Octavia Prasetyo; Soekarto, .; Sulistyanto, Didik
Berkala Ilmiah Pertanian Vol 1, No 4: MEI
Publisher : Berkala Ilmiah Pertanian

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Abstract

[ENGLISH]One cause of the pest was found to be associated with the presence of cropping systems is monoculture. So, It required an effective alternative to control in suppressing the development of pest. The research was conducted in the village of Lempeni, District of Lumajang, with the aim to determine the benefits of intercrops and effect on pests in maize and legumes in intercropping cropping systems. This study uses a design Plots Divided, with intercrops as main plot treatments consisted of three levels (mung beans, peanuts, and soybeans), and the number of lines of treatment legumes as subplot (1 line, 2 line, 3 line legumes between two rows of maize and Control). Each treatment was repeated three times. The results showed that the highest populations of Heliothis armigera at age 60 hst is ktb4 treatment with the average value and the lowest 4.00 bugs khb1 treatment with an average value of 2.67 bugs. Intensity of the treatment the number of rows planted 3 rows provide significant effect on the level of damage to the maize, namely the attack Atherigona exigua with an average of 16.84%, Oxya chinensis with an average of 12:06%, leaf rollers attack with an average of 7.63% and Ostrinia furnacalis with an average of 53.33%. However, the results do not lead to the level of the damage corn plants die.Keywords: Atherigona exigua; Oxya chinensis; Heliothis armigera; Ostrinia furnacalis; Integrated Pest Management.[INDONESIAN]Salah satu penyebab munculnya hama ternyata dapat dikaitkan dengan adanya sistem pertanaman yang bersifat monokultur. Untuk itu diperlukan suatu alternatif pengendalian yang efektif dalam menekan perkembangan hama. Penelitian ini dilaksanakan di Desa Lempeni, Kabupaten Lumajang, dengan tujuan untuk mengetahui manfaat tanaman sela dan pengaruhnya terhadap hama dipertanaman jagung dan tanaman kacang-kacangan dengan sistem tanam tumpangsari. Penelitian ini menggunakan Rancangan Petak Terbagi, dengan tanaman sela sebagai perlakuan petak utama terdiri dari tiga taraf (Kacang hijau, Kacang tanah, Kedelai), dan perlakuan jumlah baris kacang-kacangan sebagai anak petak (1 Baris, 2 Baris, 3 baris kacang-kacangan diantara dua baris tanaman jagung dan Kontrol). Masing-masing perlakuan diulang tiga kali. Hasil penelitian menunjukkan bahwa pada populasi Heliothis armigera tertinggi pada umur 60 hst yaitu perlakuan ktb4 dengan nilai rata-rata 4.00 ekor dan terendah perlakuan khb1 dengan nilai rata-rata 2.67 ekor. Intensitas serangan pada perlakuan jumlah baris tanam 3 baris memberikan pengaruh yang nyata terhadap tingkat kerusakan pada tanaman jagung, yaitu pada serangan Atherigona exigua dengan rata-rata 16.84 %, Oxya chinensis dengan rata-rata 12.06 %, serangan penggulung daun dengan rata-rata 7.63 % dan Ostrinia furnacalis dengan rata-rata 53.33 %. Namun dengan hasil tingkat kerusakan tersebut tidak menyebabkan tanaman jagung mati.Kata Kunci: Atherigona exigua; Oxya chinensis; Heliothis armigera; Ostrinia furnacalis; Pengendalian Hama Terpadu.How to citate: Megawati DOP, Soekarto, D Sulistyanto. 2014. Hubungan jumlah baris kacang-kacangan terhadap hama tanaman jagung dan tanaman kacang-kacangan. Berkala Ilmiah Pertanian 1(4): 66-69.
MASS PRODUCTION OF ENTOMOPATHOGENIC NEMATODES OF LOCAL ISOLATES AS BIOLOGICAL CONTROL AGENTS OF COFFEE BERRY BORER (HYPOTHENEMUS HAMPEI FERR.) Wagiyana, Wagiyana; Sulistyanto, Didik; Waluyo, Joko
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 19, No 1 (2019): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/j.hptt.1198-14

Abstract

Entomopathogenic Nematodes (EpNs) that serve as biological control agents include Steinernema spp and  Heterorhabditis spp. EPNs Heterorhabditis indicus (Bromo Isolate) has a high toxicity against larvae Lepidoptera and Coleoptera and was successfully developed for mass production in Biological Control Laboratory of Jember University. These nematodes will be formulated as solid and liquid biopesticides. This research aims: to find EPNs local isolates from smallholder coffee plantations; to identify local and in vivo and in vitro cultured EPNs isolates; to determine the pathogenicity of EpNs local isolate against Coffee Berry Borrer (CBB) Hypothenemus hampei Ferr and to formulate EpNs in vitro culture as a liquid and solid formula. These formula were tested for the patogenicity and viability of EpNs to the larvae of H. hampei, Tenebrio molitor and Galleria melonella. The results showed that the pathogenecity of EpNs isolate to the larvae of CBB in Silo was 30% after 24 hours and 90% after 48 hours of in vivo inoculation. However, the mortality of CBB larvae was only 10% by liquid spraying on the coffee berry. The viability was 524 IJ (Infective Juvenile) on liquid formula packed on polyurethane sponge, and this was higher than that on solid formula (330 IJ).
Combination of Organic Fertilizer and Biological Agent for Pest Control Spodoptera exigua of Plant Onion in Gending, Probolinggo Agustini, Yusia; Purwatiningsih, P.; Sulistyanto, Didik
Jurnal ILMU DASAR Vol 18 No 2 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1728.37 KB) | DOI: 10.19184/jid.v18i2.5647

Abstract

Onion is one of lowland vegetables commodity that has been long cultivated intensively by farmers in Indonesia. Probolinggo is one of the regions which give considerable contribution of producing onion to the national needs. In an effort to increase production, onion farmers in Probolinggo mostly relies on external supply in the form of artificial chemicals (fertilizers and pesticides). However, the using of artificial chemicals can cause pollution and damage the environment. So that utilization of biological agents and organic fertilizers which are environmentally friendly can become other solutions to increase the yield of onion production. Based on this case, it is very important in efforts to increase production of onion by combining organic fertilizers to enrich the content of organic matter in the soil with biological agents in tackling pests attack. Based on the research results in application of combining organic fertilizers granules plus NEP and biological agents Heterorhabditis sp. in District Gending Probolinggo shows that : 1. reducing the population of pests Spodoptera exigua up to 72.260%. 2. improving onion plant growth more optimal. From the result, it shows that the combination of organic fertilizer granule plus biological agents and NEP Heterorhabditis sp. (P2A1) is more effective than the combination of the others. Keywords: onion, biological agents, spodoptera exigua
Characterization Physiology and Molecular Bacteria Symbiont- Entomopathogenic Nematodes based of Gene Sequences Encoding the 16S rRNA District of Bromo Probolinggo Setiawan, Bagus; Sulistyanto, Didik; Senjarini, Kartika
Jurnal ILMU DASAR Vol 18 No 1 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.218 KB) | DOI: 10.19184/jid.v18i1.2723

Abstract

This study aims to identify entomopathogenic nematodes symbiotic bacteria phenotypically and based on the gene encoding 16S rRNA sequences. Bacterial symbionts of entomopathogenic nematodes, obtained from isolates from the area Wonokerto (WN01) and isolates Sukapura (SP01), Bromo, Probolinggo, two symbiont bacteria was found in entomopathogenic nematodes Steinernema sp. The method used in this study are: the isolation of entomopathogenic nematodes Steinernema sp. and bacterial symbionts conventionally for the identification of phenotypically, after the characterization of bacterial isolates, the isolation of genomic DNA, 16S rRNA PCR, DNA purification and DNA sequence analysis. The results based on phenotypic characterization showed that isolates WN01 and SP01, yellowish white, gram positive, negative bioluminenscene, catalase positive, can not hydrolyze urea, and also can not produce H2S. The results of the gene encoding 16S rRNA sequence can be deduced WN01 isolates have in common with the bacteria Bacillus strain toyonensis BCT 7112, while the SP01 isolates have in common with the bacteria Bacillus strain cereus ATCC 14 579.
Pengaruh Kombinasi Senyawa Humik dan CaCO3 terhadap Alumunium dan Fosfat Typic Paleudult Kentrong Banten Winarso, Sugeng; Handayanto, Eko; Syekhfani, Syekhfani; Sulistyanto, Didik
JOURNAL OF TROPICAL SOILS Vol. 14 No. 2: May 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i2.89-95

Abstract

Effect of Humic Compounds and CaCO3 Combination on Aluminium and Phosphate of Typic Paleudult Kentrong Banten (S. Winarso, E. Handayanto, Syekhfani and D. Sulistyanto): Decomposition of organic matter releases humic compounds, that can chelate metals include Al in acidic soils. This chelation of Al is important for decreasing of Al activity and P fixation in acidic soils. This study was aimed to test the effect of humic compounds extracted from rice-straw compost and CaCO3 combination on aluminium activity and phosphate (available P) on an Ultisol (Typic Paleudult) collected from Kentrong Banten.  A laboratory study was conducted by series consentration of CaCO3 (0, 500, 1.000, 2.000, dan 3.000 ppm) in 8 grams of acidic soil. The acidic soil had previously been subjected to continuously addition of humic compounds and none. Then, these mix of soil and CaCO3 were added 40 ml contained 5.000 ppm humic compounds to obtain 1:5 soil:suspension ratio and  control was made by using aquadest. They were shaked for 2 hours every day and pH was measured. At 11st days incubation  Alexch (N KCl) and soluble of P (PB and PC) were measured.  The results  showed that liming or addition of CaCO3 to the acidic soils decreased Alexch (precipitated to be Al(OH)3) linearly with formula y = -0.778x + 6.108; y = Alexch (Cmol kg-1), x = CaCO3 (M); R² = 0,916. Combination addition of humic compounds and CaCO3 was able to increase pH and Alexch up to not detected. The increased of P-soluble or desorption P untill 384% took place at addition of 0.0016 M CaCO3 and 5000 ppm humic compounds. More desorption of P was observed if the acidic soils has previously been subjected to continuously addition of humic compounds, such us the increased of soluble P up to 739% at addition of CaCO3 0.0008 M.