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Bambang Gonggo Murcitro
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INDONESIA
Jurnal Ilmu-Ilmu Pertanian Indonesia
Published by Universitas Bengkulu
ISSN : 14110067     EISSN : 26849593     DOI : https://doi.org/10.31186/jipi
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu-Ilmu Pertanian Indonesia (JIPI) is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, including Agroecotechnology, Plant Breeding, Soil Science, Plant Protection, and Agricultural Ecology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 208 Documents
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ISOLASI Steinernema DARI TANAH PERTANAMAN JAGUNG DI BENGKULU BAGIAN SELATAN DAN PATOGENESITASNYA TERHADAP Spodoptera litura F. Djamilah Djamila; Nadrawati Nadrawati; Muhammad Rosi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 12, No 1 (2010)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.12.1.34-39

Abstract

[THE ISOLATION OFSteinernema FROM CORN FIELD AND ITS PATHOGENECITY TO Spodoptera litura F]. Insect pathogenic nematode (IPN) offers an environmentally sound of controlling insect pest, as alternative for chemical insecticide. This research was conducted to evaluate the effectiveness of  Steinernema sp isolates collected from corn fields in Southern parts of  Bengkulu Province. The factorial experiment involved treatment combinations between sources of IPN isolate (Seluma, South Bengkulu, and Kaur) and density of IPN isolate  (100, 200, and 400 JI mL-1). The pathogenecity of the isolates were tested by inoculating the isolates on 4th instar of S. litura. The isolate of IPN collected from Seluma and Kaur corn fields were more effective in controlling the insect compared to those of the South Bengkulu as S. litura was killed faster and caused the 100 % mortality at 60 hours after inoculation. The symptoms of attacked larvae of S. litura were sluggish movement, body color changed to blackish with damaged internal organs. (JI=juvenile infective)
PERTUMBUHAN TIGA SPESIES CACING TANAH AKIBAT PENYIRAMAN AIR DAN PENGAPURAN YANG BERBEDA Bieng Brata
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 8, No 1 (2006)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.8.1.69-75

Abstract

This study was conducted in the Zoology of Laboratorium, Biology Departement, Faculty of Mathematics and Natural Science, Bogor Agricultura University for 10 months from August 2000 untill May 2001. The objective of the study was to evaluate the efect of watering and lime levels on the three species of earthworms . The method used in this study was Completelly Randomized Design with three factor ie; (1) species Pheretima sp.E. foetiad and L. rubellus, (2) lime levels (0.2 and 0.4%), and (3) watering levels (0, 10, 20 and 30%) of media weight with three replication. The results of the study showed that; (1) the level of watering of 30% of media weight produced better body weight on E. foetiad and L. rubellus, (2) the level of watering of 10% was hight offspring weight on E. foetiad and L. rubellus, (3) the level of watering of 10% produced better biomass production on E. foetiad and L. rubellus, and (4) the watering of 0% produced hight mortality rate. 
PENGARUH PENGGUNAAN TANAH GAMBUT SEBAGAI LAHAN PERTANIAN TERHADAP PERUBAHAN POLA LAJU MINERALISASI NITROGEN Suhardi Suhardi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 7, No 2 (2005)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.7.2.104-110

Abstract

The objective of this research was to determine the change of peat nitrogen mineralization rate under influence of peat land transformation on land culture. Four types of peat land transformation were used in this study. They were : low intensive paddy field (STI), high intensive paddy field (SI), dry land crop (LKS), and palm oil plantation (LKT). Four parameters were used to measure the rate of nitrogen mineralized for this necessity : cumulative of nitrate mineralized (Nt), nitrogen mineraliztion potential (N0), half time of mineralization (Tc), and nitrogen mineralization coefficient (K). This research was carried out in laboratory by incubating followed by leaching the peat by using Stanford and Smith (1972) method. The research revealed that the highest intensity of nitrogen mineralization was reached during first to fourth weeks of incubation. On the other hand, the transformation of peat land to culture land enhanced the rate of nitrogen mineralized which was showed by decrease the value of N0 and Tc, while its K value increased. This research showed that control (undistubed peat land) had the highest value of N0 and Tc (44,094 me NO3 100 g-1 peat and 20,586 weeks) and the lowet K value (0,033 week-1); while the lowest of N0 and Tc values and the highest of K value was obtained by peat land that was transformed to dryland crop (GB7). 
UPAYA PEREMAJAAN DAN PENYERAPAN LOGAM MINYAK GORENG BEKAS INDUSTRI MAKANAN TRADISIONAL DENGAN MEMANFAATKAN BIOADSORBEN TANDAN KOSONG KELAPA SAWIT (TKKS) Susi Desminarti; Edi Joniarta
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 2 (2007)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.9.2.85-93

Abstract

The research has been carried out in the Processing and Chemistry Laboratory of Politeknik Pertanian Negeri Payakumbuh and Post Harvest Laboratory in Bogor since July until November 2006. The research objectives was to prolong the using time of used cooking oil on food industries through applying the empty fruit bunch of palm bioadsorbent. The optimum condition of TKKS applied were 125 mm size and 5% bioadsorben from the weight of oil (Desminarti dan Rahzarni, 2004). The prolonging of cooking oil application can be done throughrefining used cooking oil so that the part of bad cooking oil can be lremoved. Statistical design used in this research was Completely Randomized Design with four treatments dan three replications. If the result was significant it will be followed by DMRT test on 5% significant level. Based on the experiment could be concluded that that four times titration could produced the oil based on SNI criterya in the relation to the water content (0.23%), peroxide value (0.82%) and free fatty acid value (0.23%) and it could also decrease Fe content from 76ppm to 22 ppm, Cu from 1.2 ppm to 0.40 ppm and Non Urea Adduct Forming (NAF) from 126 ppm to 102 ppm. The bioadsorbent sorption content on water varied from 78% to 80%; peroxide value from 14.71 to 59.80%, free fattyacid from 55.61 to 89.25%, Fe from 68.42 to 71.05%, Cu from 5% to 60% and NAF from 17.46 to 19.05%.
EVALUASI DAN SELEKSI 24 GENOTIPE JAGUNG LOKAL DAN INTRODUKSI YANG DITANAM SEBAGAI JAGUNG SEMI Surjono Hadi Sutjahjo; Hadiatmi Hadiatmi; Meynilivia Meynilivia
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 7, No 1 (2005)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.7.1.35-43

Abstract

The objectives of this research were to characterize 24 corn genotypes and to select the best genotype to be grown as baby corn having high yield and early harvesting. The results indicated high genetic variability for all characters meaning that there was a great chance for further selection on characters of interest. Genotypes which have the highest number of cob were Lokal Rempek and Pena Boto. Pena Boto also has the lowest damage cobs. Lokal Dea and Lokal Nala were the earliest harvesting genotypes. Genotype Arjuna, Lokal Tumbu and Lokal Nala showed the highest baby corn yield. Considering all characters observed, Arjuna, Pena Boto, DT-6, Lokal Lendang Ree, Lokal Rempek, and Lokal Tumbu were the best baby corn genotypes in this study. 
EFIKASI INSEKTISIDA NABATI EKSTRAK DAUN Tephrosia vogelii Hook. TERHADAP Crocidolomia pavonana (F.) dan Plutella xylostella (L.) SERTA PENGARUHNYA PADA Diadegma semiclausum (Hellen) Agustin Zarkani; Djoko Prijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 12, No 1 (2010)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.12.1.68-75

Abstract

[EFICATION OF BOTANICAL INSECTICIDE OF Tephrosia vogelii Hook. f. LEAF EXTRACT AGAINTS Crocidolomia pavonana (F.) AND Plutella xylostella (L.) AND ITS EFFECT TO Diadegma semiclausum (Hellen)]. The active fraction of hexane extract of Tephrosia vogelii (Tv) leaves was evaluated for this insecticidal activity on second-instar larvae of Crocidolomia pavonana and Plutella xylostella as well as for the safety to the adults of Diadegma semiclausum parasitoid. Fraction (fr) 2-4 of Tv from column chromatography (CC) had strong insecticidal activity on C. pavonana and P. xylostella.  In the test with C. pavonana, the fraction was more active by feeding than by contact. Based on LC50 at 72 hours since treatment (HST), fr 2-4 CC Tv was 1.8 times more toxic to P. xylostella than to C. pavonana.  The fr 2-4 CC Tv showed strong antifeedant effect against C. pavonana larvae.  At equal test concentrations, the treatment with fr 2-4 CC Tv caused much lower mortality in D. semiclausum parasitoid adults than in its host larvae, P. xylostella.   In contrast, an organophosphate profenofos, included in this study as a positive control, was much more detrimental to D. semiclausum than to P. xylostella.  In the semifield experiment, fr 2-4 CC Tv had comparable effect with profenofos and bioinsecticide Bacillus thuringiensis in reducing the population of C. pavonana larvae on broccoli plants.
VIABILITAS BENIH WIJEN LOKAL (Sesamum indicum L.) SETELAH KRIOPRESERVASI DAN PENYIMPANAN PADA SUHU RENDAH (-40 °C) Dody Priadi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 8, No 2 (2006)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.8.2.120-125

Abstract

Sesame (Sesamum indicum L.) seed is useful for human health due to its oil containing antioxidant. In Indonesia, sesame seed are currently stored by using conventional method that is by drying prior to storage. In this research we attempted to obtain optimal condition for storage of sesame seeds conducted by 2 methods that is cryopreservation in liquid nitrogen (-196 °C) for 24 hour, 1, 2, 3 and 4 weeks and storage at low temperature (-40 °C) for 1, 2, 3, 4 and 5 months. Prior to cryopreserve in liquid nitrogen for 24 hours, the seeds were dried in desiccator for 0, 1, 2, 3, 4, 5 and 6 hours. Seeds were thawed at 28 °C for 60 minutes before germination. Result showed that germination percentage of sesame seeds before and after cryopreservation (93.0 - 99.0%), after storage at low temperature (98.3 - 100%) were not significantly different. Thereby both the methods can be recommended for local sesame seeds storage, eventhough cryopreservation method more efficient than storage at low temperature. 
PENGARUH DOSIS PUPUK KANDANG KAMBING DAN NPK 16:16:16 TERHADAP PERTUMBUHAN DAN KUALITAS JAMBU BIJI KRISTAL (Psidium guajava L.) PADA MUSIM PENGHUJAN Ariya Listari; Supanjani Supanjani; Sumardi Sumardi; Widodo Widodo; Djamilah Djamilah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 1 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.1.44-48

Abstract

ABSTRACT[THE EFFECT OF GOAT MANURES AND NPK 16:16:16 FERTILIZER ON THE GROWTH OF SEEDLESS GUAVA CROPS AND QUALITY OF ITS FRUIT (Psidium guajava L) AT RAINY SEASONS OF INDONESIA]. Guava var. Crystal, known as seedless guava, is one of the most popular guava in Indonesia. Compated to other guavas, seedless guava has softer texture, tastes sweeter, and has less seeds. This experiment was carried out from September 2017 to February 2018 at Harapan Makmur village, Pondok Kubang regency, and Central Bengkulu district. The objective of this experiment was to evaluate the effect of goat manures and NPK 16:16:16 fertilizers on the growth of guava crops and the quality of its fruits. The experiment was arranged in randomized complete block design (2 factors, 5 replications). The first factor tested was the dose of goat manures, consisting of 3 levels: 0, 9, and 18 kg/plant. The second factor tested was the dose of NPK 16:16:16 fertilizers, consisting of 3 levels: 0, 0,25, and 0.5 kg/plant. The results showed that goat manures significantly affected the diameter and number of branches. In addition, the dose of NPK significantly affected the diameter of branches, degree of leaf greenness, number of flower, and number of aborted flowers. Finally, the interaction between goat manures and NPK manures did not significantly affect all variables measured, except for leaf areas.
PENEKANAN NABATI PADA TANAH TANAMAN TOMAT TERKONTAMINASI Fusarium oxysporum F.SP. lycopersici Andri Sugito; Heru Adi Djatmiko; Loekas Soesanto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 12, No 1 (2010)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.12.1.13-18

Abstract

[BOTANICAL SUPPRESSION ON CONTAMINATED TOMATO SOIL BY Fusarium oxysporum f.sp. lycopersici]. A screen house study was carried out to identify the best botanical materials and their application time on suppression of Fusarium oxysporum f.sp. lycopersici pathogen in contaminated soil and on the growth of tomato. A randomized block design with three replications was used allocate 19 treatment combinations of botanical materials (extract of neem leaves, clove leaves, teak bark, pine bark, and catalpha leaves) and time of applications (4, 2, or  4 and 2 weeks before planting).  Observations were made on the development of the pathogen, disease intensity, and plant growth. Results showed that all botanical materials used could reduce the pathogen population but not the plant growth components. Extract of clove leaves applied at 4 weeks before planting was the best in decreasing the pathogen population (79.22 %).
KAPASITAS SIMPANAN AIR TANAH PADA SISTEM TATAGUNA LAHAN LPP TAHURA RAJA LELO BENGKULU Edi Suharto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 8, No 1 (2006)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.8.1.44-49

Abstract

Objective of this study was to measure soil water storage capacity on land use system at LPP TAHURA Raja Lelo Bengkulu. Research was conducted from September 1999 to February 2000 in Laboratory of soil of Agriculture Department, Gadjah Mada University. The Research used sampling design andanalysis the physics and chemistry of soils . Land use system was covered by tree crops which high of water storage capacity of soils. Those covered by grasses and scrub will be less. The variable of water storage capacity of soils are rain fall interception by vegetation of land cover, soil depth of root interception, the balanced of soil particle distribution of clays and sands, and the distribution of soil micro pore. Soil water drainage was determined by amount of organic matter in top soils. Therefore, forest and estate land use system covered by tree crops is an effective conventional landscape for soil and water conservation. 

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