Eko Suprijono
Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Bengkulu

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PENGARUH EFIKASI EKSTRAK BIJI PINANG DALAM MENGENDALIKAN ULAT DAUN KUBIS PADA PAKCOY Suswando, Rezkiyo; Djamilah, Djamilah; Suprijono, Eko
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 2 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.2.62-67

Abstract

[THE EFFICACY OF AQUEOUS EXTRACT OF BETEL NUT AGAINST DIAMONDBACK MOTH OF PAKCOY CABBAGES]. The diamondback moth (Plutella xylostella L.) is the most destructive pest on cultivated pakcoy cabbages.  Chemical control using synthetic insecticides may cause pollution to the environment and may contribute to the development of resistance insects.  Therefore, botanical insecticides which are environmentally safe could be used as an alternative pesticide.  The objective of the study was to determine the efficacy of aqueous extract of betel nut to control diamondback moth on pakchoi cabbages (Brassica rapa sub-sp. chinensis). The extracts of betel nut consisted of six concentrations included 20, 30, 40, 50, 60 %, and pure water as a control.  The extracts were sprayed on the pakchoy plants infested by diamondback moth.  The application of betel nut extracts have significantly increased insect’s mortality and decreased the attacked intensity on the cabbages by the insect. The highest mortality of insects was 72.5%, whereas the lowest attack intensity was 6.29% were observed at the concentration of 60% of betel nut extract application. No significant effect was observed on the plant growth and yield.
Nilai Nutrisi Gulma Sawah Dominan di Kawasan Pesisir Kota Bengkulu Sutriyono, Sutriyono; Setyowati, Nanik; Prakoso, Hardi; Iswanrijanto, Agus; Suprijono, Eko
Jurnal Sain Peternakan Indonesia Vol 4, No 2 (2009)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jspi.id.4.2.88-93

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ABSTRAKPenelitian bertujuan untuk memperoleh spesies-spesies gulma potensial sebagai sumber pakan ternak, berdasarkan pada produksi, dominansi, dan nilai nutrisi. Penelitian dilaksanakan di lahan sawah KecamatanSungai Serut, Kota Bengkulu. Dibuat petak sampel berukuran 1 m x 1 m sebanyak lima puluh petak sampel dengan metode jalur transek. Gulma dipanen dengan akarnya, kemudian dicuci, dipilah-pilahkan menurutjenisnya, dihitung jumlah jenis dan jumlah individu untuk setiap jenis, dihitung ditimbang, dianalisis kandungan nutrisinya (bahan kering, Protein kasar, kalsium, posfor) dan kandungan energi. Berdasarkanpenelitian ditemukan 23 spesies gulma, dan lima jenis dominan adalah Gulma X (Ordo Poales), Fymbristilis milliaceae, Lindernia anagalis, Cyperus halpan, Ludwigia perennis, dengan nilai SDR berturut-turut adalah 18,30 %; 11,92 %; 10,82 %; 8,94 %; 7,55%; produksi biomasa 495,96 kg/ha atau 27,87 %; 206,2 kg/ha atau 11,15 %, 127.9kg/ha atau 7,19 % , 94.08 kg/ha atau 5,29 %. Kandungan protein 5,28 %; 6,89 %; 5,97%; 6,01 %; 7,39. Kandungan kalsium : 0,02 %; 0,09 %; 0,13 %; 0,08 %; 0,06 %; kandungan posfor 0,16 %; 0,33%; 0.57%; 0,26 %; 0,296 %. Seluruh gulma dominan menyebar secara berkelompok. Dapat disimpulkan bahwa gulma dominan mempunyai potensi sebagai sumber pakan.Kata kunci : spesies, gulma sawah, dominansi, produksi, nutrisi
ERTUMBUHAN DAN HASIL TANAMAN KACANG BOGOR PADA BERBAGAI TINGKAT KERAPATAN TANAMDAN FREKUENSI PENYIANGAN Turmudi, Edhi; Suprijono, Eko
Biofarm Jurnal Ilmiah Pertanian Vol 13, No 8 (2010): Biofarm Jurnal Ilmiah Pertanian,Vol XIII, No. 8, April 2010
Publisher : Biofarm Jurnal Ilmiah Pertanian

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Abstract

Upaya pemehunan konsumsi kacang bogor melalui peningkatan produksi dihadapkan pada permasalahan  gangguan gulma yang dapat diatasi dengan pengaturan kerapatan tanaman dan penyiangan. Penelitian bertujuan untuk mendapatkan frekuensi penyiangan pada setiap kerapatan tanaman kacang bogor yang pertumbuhan dan hasilnya tertinggi. Pelaksanaannya dengan menguji dua macam perlakuan yaitu tingkat kerapatan tanaman yang terdiri atas tiga taraf dan frekuensi penyiangan terdiri atas empat taraf disusun secara faktorial dengan Rancangan Acak Kelompok Lengkap (RAKL) yang  dilakukan dalam bentuk percobaan lapangan. Penyiangan dua kali secara nyata meningkatkan pertumbuhan dan hasil kacang bogor. Hasil biji kering per petak tertinggi sebesar 1559,37 g lebih dari tanpa penyiangan. Indeks luas daun, jumlah daun, biomassa tanaman, jumlah polong muda, dan jumlah polong pertanaman tertinggi pada kerapatan tanaman 150.000 per hektar.Keta kunci : Kacang bogor, penyiangan
ERTUMBUHAN DAN HASIL TANAMAN KACANG BOGOR PADA BERBAGAI TINGKAT KERAPATAN TANAMDAN FREKUENSI PENYIANGAN Turmudi, Edhi; Suprijono, Eko
Biofarm Jurnal Ilmiah Pertanian Vol 13, No 8 (2010): Biofarm Jurnal Ilmiah Pertanian,Vol XIII, No. 8, April 2010
Publisher : Biofarm Jurnal Ilmiah Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Upaya pemehunan konsumsi kacang bogor melalui peningkatan produksi dihadapkan pada permasalahan  gangguan gulma yang dapat diatasi dengan pengaturan kerapatan tanaman dan penyiangan. Penelitian bertujuan untuk mendapatkan frekuensi penyiangan pada setiap kerapatan tanaman kacang bogor yang pertumbuhan dan hasilnya tertinggi. Pelaksanaannya dengan menguji dua macam perlakuan yaitu tingkat kerapatan tanaman yang terdiri atas tiga taraf dan frekuensi penyiangan terdiri atas empat taraf disusun secara faktorial dengan Rancangan Acak Kelompok Lengkap (RAKL) yang  dilakukan dalam bentuk percobaan lapangan. Penyiangan dua kali secara nyata meningkatkan pertumbuhan dan hasil kacang bogor. Hasil biji kering per petak tertinggi sebesar 1559,37 g lebih dari tanpa penyiangan. Indeks luas daun, jumlah daun, biomassa tanaman, jumlah polong muda, dan jumlah polong pertanaman tertinggi pada kerapatan tanaman 150.000 per hektar.Keta kunci : Kacang bogor, penyiangan
PENGARUH SUBTITUSI PUPUK N SINTETIK DENGAN LIMBAH LUMPUR SAWIT TERHADAP PERTUMBUHAN DAN HASIL JAGUNG MANIS Simbolon, Johannes; Simanihuruk, Bilman Wilman; Murcitro, Bambang Gonggo; Gusmara, Herry; Suprijono, Eko
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 2 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.2.51-59

Abstract

[EFFECTS OF PALM OIL SLUDGE SUBTITUTION FOR SYNTHETIC N FERTILIZER ON GROWTH AND YIELD OF SWEET CORN]. Palm oil sludge (POS) contains high concentrations of organic nitrogen dan its can serve as an alternative for synthetic nitrogen fertilizer. Objective of this study was to compare the growth and yield of sweet corn as amended with different compositions of synthetic N fertilizer and palm oil sludge. Six compositions, each containing 138 kg N/ha were assigned as the treatment and arranged in a randomized complete block design with three replications. These were 100% synthetic fertilizer, 80% synthetic fertilizer + 20% POS, 60% synthetic fertilizer + 40% POS, 40% synthetic fertilizer + 60% POS, 20% synthetic fertilizer + 80% POS, and 100% POS. The results of this study indicated that the plot amended with 60% synthetic fertilizer + 40% POS produced the highest plant stature (176.4 cm), stem diameter (2.40 cm), leaf area (8712.82 cm2 ), plant fresh weight (375.19 g), plant dry weight (136.68 g), and husked ear length (17.93 cm). However, the highest observed husked ear yield was only about 61.6 % the yield potential of the sweet corn variety.
Pengujian Berbagai Tipe Tanam Jajar Legowo terhadap Hasil Padi Sawah Sari, Dia Novita; Sumardi, Sumardi; Suprijono, Eko
Akta Agrosia Vol 17, No 2 (2014)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.29 KB) | DOI: 10.31186/aa.17.2.115-124

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Planting wetland paddy by setting row space could be a method to increase rice production. Legowo system is row planting method where we are able to apply different row types on paddy field. The objective ofthis research was to identify the best row planting type of ?Jajar Legowo? on growth and yield of wetland paddy. Six row plantings, including 2:1 type (means 2 rows are splited by wide space/ legowo), 3:1 type, 4:1 type, 5:1type, 6:1 type, and 7:1 typ, were tested in a Randomized Complete Block Design with 3 replications Results of the experiment revealed that the highest growth and yield as showed by total number of tillers (28), number ofproductive tillers (25), dry-mill rice (66.16 g per plant), and yield difference of dry-mill rice (50.43% per plot) was found at row planting type 2:1. Therefore, row planting type 2:1 can be selected as the best row.
Potensi Produksi Enam Hibrida Jagung pada Ultisol di Provinsi Bengkulu Suprijono, Eko; Rustikawati, Rustikawati; Romeida, Atra; Gustian, Meko
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4289.503 KB) | DOI: 10.31186/aa.18.2.32-39

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Ultisol is one of marginal land type quite extensively presence in Indonesia, including the province of Bengkulu. The use of varieties tolerance to acidity stress is the best manner to utilize of this type of land with relatively low cost and environmentally friendly. The objective of this research was to evaluate theyield potential of six maize hybrids developed to soil acidity tolerance. The experiment was conducted at the Experimental Farm Medan Baru, Kandang Limun Village, Muara Bangkahulu District, Bengkulu City, from August to November 2015. The experiment was arranged in a randomized completely block design with four replications. As the treatment were newly developed maize hybrids, namely CT5, CT8, CT9, CT13, CT14 and CT15. The variables measured were cob length, cob diameter, 100-seed weight and the estimated yield/ha. Qualitative variables supporting to corn yield were the cob position, seed color, seed type and seed row arrangement. The results indicated that the hybrid CT8 showed the highest estimated yield in Ultisol among hybrids evaluated, with the estimation of 6.5 tons per hectare. Qualitatively, theseeds of hybrid CT8 were a horse tooth type, pale yellow color, and stright line arrangement.
IDENTIFICATION OF M4 GAMMA IRRADIATED MAIZE MUTANT BASED ON RAPD MARKERS Rustikawati, Rustikawati; Suprijono, Eko; Romeida, Atra; Herison, Catur; Sutjahjo, Surjono H.
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
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.v34i2.102

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Gamma irradiation to induce mutation in plant has been used intensively since several decades ago.  On maize, 275 Gy gamma irradiation have been known to increase genetic variability indicated by their morphological variation.  Identification on genetic changes by molecular technique is important to answer whether there is mutation happening on DNA level of the plants.   The objective of this research was to identify RAPD marker polymorphism on gamma irradiation mutants compared to their parents.  The initial step of the research was to select random primers could positively amplify the maize DNA.  The result showed that selection on 60 random primers yielded 15 primers that positively amplified the maize DNA.  Amplification on both mutants and their parents by those 15 selected primers indicated that only 5 primers yielding polymorphism between mutants and their parents.  Polymorphisms on mutant G1, G3 and G6 were detected on one locus, meanwhile on mutant G7, G8 and G9 were on two loci.
EFFECT BRANCH PRUNING TO ESTABLISHMENT ON SHOOT GROWTH AND FLOWER STIMULATION ON GUAVA Nafisah, Dio; Supanjani, Supanjani; Suprijono, Eko
Akta Agrosia Vol 22, No 2 (2019)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.22.2.50-55

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GuavaCrystalsarefromTaiwan,released byministryofAgricultureDecreeNo.540/Kpts/SR.120/9/2007.GuavaCrystalvarietiesare very prospective forcommercial developmentbecauseitcanproduce   throughtheyearandhasahighvitaminCcontent. Increasingpublicawarenessoftheimportanceofconsumingfreshfruitforhealthincrease the market demandforfreshfruit.Butthe highdemandforfreshguavafruitisnotsupported bytheproduction offreshfruiteveryyear.Continueddecliningguavaproductionrequires theimprovementofcultivationtechniquessothat   thequalityandquantityofguavafruit increases. ThisneedstoImprove ofcultivationtechniquesformeetthe needsoffreshguava. One ofsimplestcultivationtechniquestoimprovethe yieldofCrystalguavaispruning. This research intendtodetermine the effectofcroplengthonthe growthoflateralshootsandthe flowering of Crystal guava.ThisresearchwasconductedinDecember2016untilMarch2017at guavaplantation locatedinBentiringSub-ProvinceofBengkuluProvince.ResearchusedRAKLwithone singlefactor.The factorislengthofpruning,whichcomprisedoffourlevels10cm,20cm,30 cm,40cmandcontrol.The resultsofthisstudyindicatedthatthe numberofshootsmost grownonbrancheswith 40cmlongtrimmingof 2.87shoots.Mostflowersaregeneratedon brancheswithcuttinglengthsof30cm,40cm andnottrimmed.Butbrancheswith30cm long cutsexperiencedthe mostnumberoffallenfruitswitha95% percentage ofunshelled branches.Themostfruit isproducedonbranchesthatarenotprunedthatisasmuchas8.7 will fruit.Keyword:Guava Crystals, Long Prune, Lateral Shoots, Flowering
PENGARUH JARAK TANAM DAN FREKUENSI PENYIANGAN TERHADAP PERTUMBUHAN, HASIL KACANG TANAH (Arachis hypogaea L ) DAN POPULASI GULMA Vera, Dina Yulianti Sisca; Turmudi, Edhi; Suprijono, Eko
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22, No 1 (2020)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.16-22

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[THE EFFECT OF PLANTING DISTANCE AND WEDDING FREQUENCY ON GROWTH, YIELD OF PEANUT (Arachis hypogaea L) AND WEED POPULATION]. This study was aimed to determine planting distance and frequency of weeding which gives the highest growth and yield of peanuts. Peanut plants were planted in the Experimental Field of the Faculty of Agriculture, Bengkulu University from October to December 2018. The study was arranged in a Complete Randomized Block Design (RCBD) with 2 factors and 3 replications. The first factor is the planting distance of 40 cm x 20 cm; 40 cm x 30 cm and 40 cm x 40 cm. The second factor is the frequency of weeding consisting of no weeding, 1x weeding (age 2 WAP), 2x weeding (2 and 4 WAP), and 3x weeding (2, 4, and 6 WAP). The results showed that the interaction between the spacing of 40 cm x 40 cm and 2 x weeding can increase plant height. The spacing of 40 cm x 40 cm can reduce the population and dry weight of broadleaf weeds. The planting distance of 40 cm x 30 cm can increase the fresh weight of pods, pod weight/plot, and the highest dry weight of pods/plants. The frequency of weeding 2x can reduce the population and dry weight of broadleaf weeds; whereas weeding frequency 3x can reduce weed populations of grass and sedges- weeds, and dry weight of broadleaf weeds. The 3x weeding frequency can also increase the total number of pods/plants, pod weight/plot, and pod weight/plant.