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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 213 Documents
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Eksplorasi Bakteri Endofit Terhadap Cendawan Pestalotiopsis microspora Penyebab Penyakit Gugur Daun Pada Tanaman Karet (Hevea brasiliensis Muell. Arg.) Vazza Navtra Tylova; Syamsul Bahri; Boy Riza Juanda; Alchemi Putri Juliantika Kusdiana
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.1.51-58

Abstract

[The Potential of Endophytic Bacteria as a Biological Controller of Leaf Fall Disease Caused by Pestalotiopsis sp. IN Rubber Plants (Hevea brasiliensis Muell. Arg.]. This study aims to explore endophytic bacteria and determine their effectiveness against the fungus Pestalotiopsis sp. which causes leaf fall on rubber plants. Pestalotiopsis sp. can attack all rubber clones resulting in decreased latex production. The presence of pathogen attacks can result in enormous economic losses. Therefore, it is very important to find an effective and efficient controlling method, one of which is through biological control of plant diseases, namely by using antagonistic microorganisms. The presence of endophytic bacteria as biological controllers has become an alternative method to reduce the practices of chemical control. This study used a Non-Factorial Completely Randomized Design (CRD) with 6 treatments and 4 replications, so that 24 experimental units were obtained, using Potato Dextrose Agar (PDA) media for the in vitro antagonist test using the dual culture method. Namely P₀ = Control, P₁ = Pestalotiopsis sp. 1 vs Bacteria P, P₂ = Pestalotiopsis sp. 2 vs Bacteria B, P₃ = Pestalotiopsis sp. 3 vs Bacteria C, P₄ = Pestalotiopsis sp. 4 vs Bacteria E, P₅ = Pestalotiopsis sp. 5 vs Bacteria F. The results indicated that antagonistic treatment of endophytic bacteria in vitro affected the percentage of inhibitory power of the mycelium of the fungus Pestalotiopsis sp. by endophytic bacteria at 1 - 6 Days After Incubation (DAI). The 3% KOH method and gram staining showed that samples P₁, P₂, P₅ did not produce mucus and were purple in colour (positive), but samples P₃, P₄, showed mucus and were pink in colour (negative). Hypersensitivity reactions to tobacco plants samples P₁, P₂, P₃, P₄, P₅ did not show negative characteristics or did not cause changes in coloration and symptoms on leaves of tobacco plant.  
EKSPLORASI KERAGAMAN PLASMA NUTFAH JENGKOL DI KABUPATEN SIJUNJUNG BERDASARKAN KARAKTER MORFOLOGI Nike Karjunita; Yeni Permata Sari; Kuswandi; Ananto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.1.45-50

Abstract

[EXPLORATION OF JENGKOL GERMPLASM’S DIVERSITY IN SIJUNJUNG REGENCY BASED ON MORPHOLOGICAL CHARACTERS]. Jengkol is one of the leading commodities in Sijunjung Regency. This research aims to determine the genetic diversity of jengkol accession in Sijunjung Regency based on morphological characters. The exploratory research was conducted in three sub-districts in Sijunjung Regency, West Sumatra from January to May 2021. The observed characters included vegetative and generative characters, which refer to the description of the registered jengkol variety. Data were analyzed using software R.3.5.2 for cluster analysis, and SPSS 17.0 for principal component analysis. The 60 accessions of jengkol from exploration in Sijunjung Regency were grouped into two main groups, namely Group 1 which consisted of two accessions, UGB 2A, and ARS 2B, while the rests belonged to Group 2. The coefficient of dissimilarity between the two groups of jengkol accessions from Sijunjung Regency about 45%, or with a similarity of 55%. The results of PCA analysis of 19 characters in 60 accessions of jengkol indicated a contribution of 79.17% of the total diversity, which was divided into seven main components. This study recommended a necessity to establish further selection from the diversity of jengkol germplasm in Sijunjung. Selected accessions can be registered by the Sijunjung Regency Government in order to increase the number of high-yielding jengkol varieties in West Sumatra, as well as be beneficial for seed breeders and farmers in this area
EFFECT OF PLASTIC MULCHING AND PESTICIDE APPLICATION ON ACTIVE AND STABLE CARBON IN VOLCANIC SOILS, WEST SUMATRA Maulana Kamil; Annisa Rachim; Irwin Mirza Umami; Khairun Nisa Kamarudin; Hermansah Hermansah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.1.59-65

Abstract

Agricultural intensification plays an important role in sustaining productivity. Plastic mulching and the application of pesticides in crop cultivation have become inevitable to achieve high yield production. This study was aimed to determine the effect of plastic mulching and pesticide applications on carbon (C) fractions. The field experiment was designed using a completely randomized design with two factors consisting of plastic mulching and the application of pesticide at two levels (with and without) at each treatment. All the treatments were prepared for three replications. The soil carbon fractions data collected includes active C and humic acid as stable C fractions. The findings of this research showed that both active and stable C fractions were not significantly influenced by plastic mulching and pesticide applications. The active and stable C fractions were ranging from 1.40 to 1.42 g/kg and from 193.3 to 220 g/kg, respectively. These results might be attributed to the period of the study. The duration of this study might be not sufficient to capture any potential long-term changes in soil C fractions induced by the treatments. Thus, further research should consider extending the experiment duration to assess the long-term effects of the agricultural practices to C fractions.
KAJIAN KEMAMPUAN TANAH DALAM MENAHAN AIR PADA TIGA SATUAN PENGGUNAAN LAHAN DI DESA KARANGPATIHAN KECAMATAN BALONG KABUPATEN PONOROGO Diah Rahmadani; Purnomo Edi Sasongko; Kemal Wijaya
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.66-73

Abstract

[PREDICTION OF SOIL WATER HOLDING CAPACITY FOR DIFFERENT TYPES OF LAND USE IN KARANGPATIHAN VILLAGE, BALONG SUBDISTRICT, PONOROGO DISTRICT USING AVAILABLE SOIL CHARACTERISTICS]. Water has significant roles for plant growth and development. The ability of soil in various types of land use to hold water is influenced by their physical and chemical properties. Meanwhile, land use types in Karangpatihan village are dominated by dry land, rice fields, and bushes. Therefore, the aim of this study was to predict soil water holding ability (WHC) in three different land use type in Karangpatihan village using available soil characteristics. Samples of disturbed and undisturbed soil in each land use type were collected with four replicates using purposive random sampling to determine their physico-chemical characteristics. Data analysis was performed using correlation and regression analysis to relate the soil characteristics in each land uses with its WHC. The results showed that the bush land use type had the highest WHC. Irrespective of land use type, WHC of soil was in order influenced by organic matter, soil texture, soil bulk density, soil porosity, and soil permeability
PENDUGAAN EROSI DAN ANALISIS TINGKAT BAHAYA EROSI DENGAN METODE UNIVERSAL SOIL LOSS EQUATION (USLE) DI BERBAGAI PENGGUNAAN LAHAN DI WILAYAH KECAMATAN PUJON Siswanto; Kemal Wijaya; Muhammad
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.82-90

Abstract

[PREDICTING SOIL EROSION AND EROSION HAZARD LEVEL IN VARIOUS LAND-USES IN THE AREA OF PUJON SUB-DISTRICT USING THE UNIVERSAL SOIL LOSS EQUATION (USLE) MODEL] The area of Pujon Sub-District is vulnerable for soil erosion due to hilly tropography. Therefore, the study aimed to predict the rate of erosion and erosion hazard level in various land uses in the Pujon district. Soil erosion was predicted by using data on soil sample at depths of 0-30 cm and 30-60 cm in each land-use/cover with three repetitions. Soil sampling was done by using purposive sampling method. the collected data were analysed using software ArcGIS. Results show that the predicted average soil erosion with a very light erosion severity was 0,02 - 3,39 ton/ha/year occurring in land-uses/covers of H1, H2, H3, H4 and K2. Whereas, the predicted soil erosion levels for the medium and heavy soil erosion severity were 0,95 - 15,48 ton/ha/year and 15,48 - 28,17 ton/ha/year occurring in the land-use units of T1, T2, and K4 and in the land-use units of T3 and T4, respectively. Thus, the erosion hazard levels in the Area of Pujon Sub-District are dominated by light and moderate erosion categories
PENGARUH KOMBINASI MEDIA TANAM TERHADAP SIFAT FISIK TANAH DAN PERAKARAN BEBERAPA MACAM BIBIT PORANG (Amorphophallus oncophyllus Prain) Seruni Atyra Kinanti; Purwadi; Bakti Wisnu Widjajani
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.91-99

Abstract

[PHYSICO-CHEMICAL CHARACTERISTICS OF SOIL-COMPOST MIXTURES AS ROOTING MEDIA FOR ELEPHANT FOOT YAM (Amorphophallus oncophyllus Prain)]. Tuber crops such as elephant foot yam have specific demands on the structure of growing media especially in terms of their physical and chemical characters due to the small rooting volume. Therefore, the objective of this study was to determine the interactive effects of seed materials and different proportions of soil-compost mixtures on their physico-chemical properties and root growth of elephant foot yam. This pot trial was conducted from July 2022 to March 2023 in coffee and sengon plantation located in Sumberejo Village, Purwosari, Pasuruan, East Java. Treatments were arranged in a factorial scheme using a Completely Randomized Design (CRD) with two factors and three repetitions. The factors included three types of seed materials, i.e., true seed, tuber, and bulbil for the first factor and five different proportions of soil-compost mixtures (w/w), i.e., 100% soil, 66.7% soil+33.3% compost, 50% soil+50% compost, 33.3% soil+66.7% compost, and 100% compost. Results showed that the interactive effects of the two treatments on the observed variables were not significantly different (p>0.05). Treatment of mixture of 2 kg soil and 4 kg compost (33.3% soil+66.7% compost) produced clayey soil texture with 1.12 g/cm3 for bulk density, 2.26 g/cm3 for specific gravity, 59.34% for soil porosity, and 38,55% for moisture content at field capacity. The bulbil type seed produced a better root growth than the other seeds
PENINGKATAN PERTUMBUHAN DAN HASIL KEDELAI YANG DITANAM DALAM KONDISI JENUH AIR MELALUI PEMBERIAN P ANORGANIK DAN KOMPOS JANJANG KOSONG SAWIT DI ULTISOL Annisa Wulandari; Hesti Pujiwati; Bambang Gonggo Murcitro; Marwanto; Elsa Lolita Putri
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.74-81

Abstract

[ENHANCING GROWTH AND YIELD OF SOYBEAN GROWN UNDER WATER-SATURATED CONDITIONS BY INORGANIC P AND EMPTY FRUIT BUNCH COMPOST AMENDMENTS IN ULTISOL]. The saturated soil culture practices with which to obtain high yield of soybean in Ultisol, characterized by high acidity, nutrient deficiencies and imbalances, should be  developed. This study was conducted to evaluate the beneficial effects of empty fruit bunch (EFB) compost combined with inorganic P application on growth and yield of soybean under water-saturated culture in Ultisol. This research was carried out from September to December 2022 in the rice field located in Kemumu Village, Arma Jaya District, North Bengkulu Regency, Bengkulu Province at an altitude of ±541 m above sea level. The field experiment was performed in factorial scheme based on a randomized complete block design with three replications. The experimental treatments included EFB compost as first factor at four levels (0, 5, 10, and 15 t/ha) and application of SP36 as second factor at four rates (0, 75, 150, and 225 kg/ha). Results show that Ultisol amended with a combination of 15 t/ha EFB compost and 75 kg/ha P2O5 resulted in the highest number of seeds per plant (about 142.266 seeds). The number of productive branches, fresh shoot weight, root dry weight, and root nodule weight was the highest in soil solely ammended with EFB compost at 15 t/ha. The sole P application at 225 kg/ha significantly (p<0.05) increased root dry weight and root nodule weight. Thus, under saturated soil culture, application of EFB compost and inorganic P in sole or combination would be the recommended nutrient management practice for enhancing soybean agronomic prformances in this acid soil.
PENGARUH KOMPOSISI MEDIA TANAM DAN UKURAN POLYBAG TERHADAP PERTUMBUHAN DAN HASIL PANEN SELADA MERAH (Lactuca sativa L.) Lestari, Anti; Widyawati, Nugraheni
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.100-107

Abstract

[THE EFFECT OF PLANTING MEDIA COMPOSITION AND POLYBAG SIZE ON THE GROWTH AND YIELD OF RED LETTUCE (Lactuca sativa L.) ]. The composition of the growing media and the size of the polybag play an important role in container vegetable production, as they are related to the availability of nutrients, water, and root space in the growing media for the plant to grow. The objective of the study was to determine the effect of planting media composition and polybag size on the growth and yield of red lettuce (Lactuca sativa L). A factorial experiment with two treatment factors was conducted using a randomized block design (RCBD) with three replications. The first factor was the growing medium, which consisted of soil, rice husk charcoal, and goat manure in the composition of 1:2:3, 2:3:1, and 3:1:2. The second factor was the polybag size, which consisted of 15 cm x 15 cm, 20 cm x 20 cm, and 20 cm x 25 cm. The results showed that the growing media composed of soil, husk charcoal, goat manure with a composition of 1:2:3 had a higher N nutrient content and produced higher growth of red lettuce plants compared to other compositions, as shown by plant height, stem diameter, number of leaves, leaf area, shoot fresh weight, and root fresh weight. Plant growth also increased as the size of the polybag used increases.
EFEKTIVITAS “BIODERMA” SEBAGAI SOLUSI PENANGANAN LIMBAH DAN PENINGKATAN PRODUKSI TANAMAN JAGUNG Gabrilliani Puspita Dewi; Brazilli Anastagia Silva; Jesxel Mulawanda Damanik; Yohanes Gaza Andri Orada; Miftah Lutfi Abdul Aziz; Rita Kurnia Apindiati
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.128-133

Abstract

[THE EFFECTIVENESS OF "BIODERMA" AS A SOLUTION FOR WASTE HANDLING AND INCREASING CORN CROP PRODUCTION]. Each hectare of corn plantation can produce approximately 9 tons of corn and it is estimated that more than 2-3 tons of corn plant waste. This study aims to find innovations in the utilization of corn waste as fertilizer by using biochar enriched with Trichoderma sp. and Pseudomonas fluorescens. This research was conducted from June 2023 to September 2023 at the Plant Disease Laboratory, Faculty of Agriculture, Tanjungpura University. Corn planting distance was 50 cm x 20 cm with 5 treatments and 5 replications. Corn waste biochar enriched with Trichoderma sp. and P. fluorescens was named "Bioderma". Corn planting distance was 50 cm x 20 cm with 5 treatments and 5 replications. The treatments were 0 tons/ha, 5 tons/ha, 10 tons/ha, 15 tons/ha and 20 tons/ha. Data analysis used was analysis of variance (ANOVA) and continued with Duncan Multiple Range Test (DMRT) at the α = 5% level. The best response of corn plant growth with a Bioderma dose of 10 tons/ha. Bioderma application can increase plant height, stem diameter, number of leaves, fresh weight, and dry weight of corn plants.
VEGETATIVE GROWTH OF CASSAVA (Manihot esculenta Crantz.) ON THE LIQUID ORGANIC FERTILIZER OF LEGUMINOSAE SPECIES AND CONCENTRATION Usman Siswanto; Yuliana Anggraeni; Wike Oktasari; Murti Astiningrum
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.108-113

Abstract

Cassava is one of the food crops with continous increasing demand. This study aimed to investigate the response of vegetative cassava growth to the application of different concentrations and types of liquid organic fertilizers (LOF) from Leguminosae plants. The research was conducted from February 27 to June 27, 2022, in Kembanglimus Village, Borobudur District, and arranged factorially (4x3) using a Randomized  Completely Block (RCB). The first factor was the type of liquid organic fertilizer derived from Leucaena leucocephala, Mimosa pudica, and Arachis hypogaea. The second factor was the concentration of LOF, consisting of 0 mL/L, 15 mL/L, 30 mL/L, and 45 mL/L. Chlorophyll content was analyzed using spectrophotometer and protein contet of leaf and tuber were analyzed with Kjeldahl methods. The results demonstrated that type of LOI did not have a significant effect on all parameters. Liquid organic fertilizer from Leguminosae plants with 0 mL/L  concentration resulted in the highest number of roots. Type of liquid organic fertilizer from Leucaena leaf with a concentration of 24.95 mL/L gave the highest number of roots, while type of LOF of Mimosa pudica with a  concentration of 26.31 mL/L gave the highest number of branches. Type of liquid organic fertilizer of Arachis hypogaea with a  concentration of 45 mL/L resulted in the highest total chlorophyll content, leaf protein content, and protein content in the tubers

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