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Bambang Gonggo Murcitro
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jipi.fp@unib.ac.id
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Faculty of Agriculture, University of Bengkulu, WR Supratman St. Kandang Limun, Bengkulu 38371
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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 9 Documents
 1 
Search results for , issue "Vol 8, No 1 (2006)" : 9 Documents clear
EVALUASI TANAH SAWAH BUKAAN BARU DI DAERAH LUBUK LINGGAU, SUMATERA SELATAN B.H Prasetyo
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.8.1.31-43

Abstract

Pembukaan sawah baru di luar Pulau Jawa sering dihadapkan pada masalah kandungan hara tanah yang rendah. Untuk tujuan mengevaluasi masalah rendahnya kandungan hara, telah dilakukan penelitian pada tanah sawah bukaan baru yang berumur satu tahun dan merupakan hasil konversi dari lahan kering di daerah Lubuk Linggau, Sumatera Selatan. Tiga profil tanah telah dibuat di lapangan berdasarkan toposekuen (HP32, HP33, HP34), satu profil dibuat pada lahan kering yang masih asli (HP31), dan dua profil(HP30, HP35) dibuat secara acak. Untuk keperluan evaluasi sifat tanah, tigapuluh satu contoh tanah telah dianalisis susunan mineral dan sifat fisika-kimanya. Hasil penelitian menunjukkan bahwa susunan mineral pasir didominasi oleh kuarsa dan opak, sedang susunan mineral liat didominasi oleh kaolinit. Sumber hara dalam tanah tergolong miskin. Kandungan C- organik tanah rendah hingga sangat rendah, kandungan hara dalam tanah rendah, konsentrasi besi tergolong sedang hingga tinggi, kejenuhan Al tinggi hingga sangat tinggi dan fosfat tersedia maupun potensial tergolong rendah.Tanah-tanah yang diteliti tergolong sebagai Typic Hapludox, Typic Kandiudults dan Typic Endoaquents. Pencetakan tanah sawah di daerah berlereng di daerah penelitian dengan cara meratakan tanah telah mengakibatkan hilangnya lapisan tanah dengan kandungan C-organik, dan memunculkan lapisan tanah dengan kejenuhan Al dan retensi fosfat tinggi. Kendala yang ada pada sawah bukaan baru di daerah ini adalah rendahnya status hara tanah, tingginya kandungan Al dan Fe, dan kekurangan fosfat. 
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. 
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. 
PEWARISAN KARAKTER YANG TERKAIT DENGAN KETAHANAN TERHADAP KEKERINGAN PADA KACANG TUNGGAK M. Chozin; J.O Gardner; C.E Watson
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.8.1.1-5

Abstract

The genetic of traits related to drought-resistance in cowpea was studied using generation mean analysis. The two contrasting drought-resistance genotypes were crossed to generate F1, F2, F3, BC1, BC2, BC1S1, and BC2S1populations which were imposed to a controlled water deficit conditions from flowering to early pod formation. The analyses were performed on stem diameter, delayed leaf senescence, and leaf temperature which were identified in earlier study as good discriminators in discerning genotypes for drought-resistance. The resistant genotype was characterized by higher delayed leaf senescence, larger stem diameter, and lower leaf temperature . The means indicated that delayed leaf senescence was controlled by partial dominant gene(s) dan segregated toward resistance. Heterotic effect toward susceptibility was found on stem diameter but recombination and segregation had seemed to bring about a reversed direction. Partial dominant gene(s) also played an important role in governing leaf temperature toward susceptibility. The Hayman’s generation mean analysis suggested that additive effect was important in controlling the three traits. The dominant and epistatic (additive-additive and additive dominant) effects were significant on stem diameter, whereas additive-dominant effect was the only additional effect for leaf temperature, beside the additive effect.
PENGARUH PEMBERIAN SERESAH DAN CACING TANAH TERHADAP PERTUMBUHAN TANAMAN LAMTORO (Leucaena leucocephala Lam De Wit) DAN TURI (Sesbania grandiflora) PADA MEDIA TANAM TANAH BEKAS PENAMBANGAN BATU BARA Wiryono Wiryono
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.8.1.50-55

Abstract

The objectives of this study was to evaluate the effects of earthworm introduction and leaf litter on the soil fertility and plant growth on the coal-mined soil growth media. This factorial experiment used completely randomized design. The first factor was the type of growth media, consisting of four levels, namely 1) topsoil, 2) coal-mined soil, 3) coal- mined soil + leaf litter of Euphatorium odoratum, and 4) coal-mined soil, + Euphatorium litter + earthworms, Pontoscolex corethrurus. The second factor was plants species, consisting of two levels, namely 1) Sesbania grandiflora and 2) Leucaena leucochepala Lam De Wit. Results showed that addition of leaf litter, or addition of leaf litter plus earthworms significantly increased soil fertility and plant growth. Sesbania gradiflora significantly grew faster thanLeucanea leucocephala.
SELEKSI JAMUR RIZOSFIR NON-PATOGENIK UNTUK PENGENDALIAN PENYAKIT LAYU FUSARIUM PADA TANAMAN JAHE DI BENGKULU Bambang Purnomo
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.8.1.6-11

Abstract

Biological control for improving the soil more supressive to pathogen can be regarded as save method to controling ginger wilt diseases. A number of fungi are potentially recognized to have capability to suppress the development of Fusarium wilt. The obyectives of this study were to select non-pathogenic fungi at the rhizosphere and to examine their isolates in suppressing the development of fusarium wilt disease in ginger. Fusarium oxysporum and non-pathogenic fungi were isolated from soil samples obtained from ginger production area which are endemic to the disease. The research involved exploration, fungi selection, and evaluation in a sucrose agar medium and ginger plant. The evaluation on ginger rhizosphere could isolate 19 species of non- pathogenic fungi, but only 12 isolates showed their capability to suppress fusarium growth. Pot evaluation of ginger plant demontrated that only 4 species were the most potential fungi as the controlling agent. The four species that are Trichoderma piluliferum, Gliocladium solani, Aspergillus oryzae, and Trichoderma viride. For further utilization of these species an effective and efficient carrier medium should be determined
FERTILITAS DAN DAYA TETAS TELUR HASIL PERSILANGAN ANTARA PUYUH ASAL BENGKULU, PADANG DAN YOGYAKARTA Desia Kaharuddin; Kususiyah Kususiyah
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.8.1.56-60

Abstract

An experiment was carried out to examine the effect of sire and dam on fertility and hatchability of eggs from crossbreeding among Bengkulu (B), Padang (P) and Yogyakarta (Y) quails. Treatments, crosses of BB, PP, YY, BP, BY, PB, PY, YB, and YP, were arranged in a Completely Randomized Design with five replications. The result of this experiment showed that the fertility of sire and dam of Bengkulu pure breed (BB, 77%) were significantly lower than Padang pure breed (PP) and other crossbreeds (BP, PB, PY, YP, BY and YB) but being not significantly different than fertility of Yogyakarta pure breed (YY). Hatchability of BB (71.12%) was not significantly different with hatchability of YY, BY and BP, but it was significantly lower than another croosbreed (PY, YP, YB and PB) and PP. The higher egg fertility and hatchability of crossbreed between Bengkulu quails and those of sire and dam from Yogyakarta or Padang as compared with those of Bengkulu quails pure breed shows potential for larger scales quail egg production. However, further researches need to be conducted to improve egg productivity of the crossbreeds.
SELEKSI MIKROBA RIZOSFER ANTAGONIS TERHADAP BAKTERI Ralstolnia solanacearum PENYEBAB PENYAKIT LAYU BAKTERI PADA TANAMAN JAHE DI LAHAN TERTINDAS Hendri Bustamam
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.8.1.12-18

Abstract

Bacterial wilt disease caused by Ralstolnia solanacearum had decreased the ginger production. Saphrophyte and antagonistic microbe are potential to control this disease by Integrated application. This microbes could be found at supressive land for pathogens. Research due to select the potential microbes to control bacterial wilt disease on ginger. Microbe was isolated from rhizosfer soil and root of healthy crop on infected ginger cropping by Ralstolnia solanacearum in Bengkulu by plate dilution methode using Pepton Glucose Agar (PGA) and Ginger-Potato Dextrose Agar (GPDA). Antagonistic was tested by Double Culture Technique on PGA and GPDA. Selected saphrophyte and antagonistic isolat was cultured on organic medium and tested to ginger crop that grown on infected soil. Disease development was observated until 5 months-age crop. The result of this experiment had isolated 4 fungi isolates and 4 bacteria isolates that potential as biocontrol agent to Ralstolnia solanacearum. Tested on Var. Badak ginger cropping indicated that all isolates had reduced 64-84% of diseases. Five Isolates of Pennicilium digitatum, Trichoderma harzianum, T. viride, Achromobacter sp., and Pseudomonas fluorescence was protected the crop to zero diseases; while three isolates of Trichoderma koningii, Bacillus sp., and Pseudomonas putida was protected the crop to 4% infected. Amundment of 12 isolates cultured on organic  matter can improve the growth of false stem 11.11 – 96.97%; leave number 8.29 - 156%; and plant height 27.68 – 93.75%.
PERAN PUPUK N DAN P TERHADAP SERAPAN N, EFISIENSI N DAN HASIL TANAMAN JAHE DI BAWAH TEGAKAN TANAMAN KARET Bambang Gonggo Murcitro; Hasanudin Hasanudin; Yuni indriani
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.8.1.61-68

Abstract

Area under rubber tree stands has an economic potential for production of ginger if proper fertilizer application is implemented. Purpose of this study was to determine the effects of N and P fertilizers application on N uptake, N efficiency and yield of ginger grown under rubber tree stands. The experiment was laid in RCB design with a factorial arrangement of the treatments, consisted of four levels of N fertilizer (0, 3.375, 6.75, and 10.125 g plant-1) and three levels of P fertilizer (0, 9, and 18 g plant-1). There were three replications and 18 plant on each experimental unit. Results indicated that there were significant interaction effects between N and P fertilizers on N uptake and N efficiency. The expected maximum N efficiency of ginger plant was 14.01% as N fertilizer applied alone at 12.56 g plant-1. Similarly, the highest N uptake (1.170 g plant-1) was observed on N application at 13.755 g plant-1 without P. Weight of ginger rhizome was predicted to increase 0.2203 g plant-1 on 1 % increment of N uptake efficiency.

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