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INDONESIA
Jurnal Ilmu Pertanian Indonesia
Published by Institut Pertanian Bogor
ISSN : 08534217     EISSN : 24433462     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Artikel yang dimuat meliputi hasil-hasil penelitian, analisis kebijakan, dan opini-opini yang berhubungan dengan pertanian dalam arti luas, seperti agronomi, ilmu tanah, hama dan penyakit tanamam, ilmu kehewanan, kedokteran veteriner, keteknikan pertanian, teknologi industri, teknologi pangan, ilmu gizi, keluarga dan konsumen, biometri, biologi, klimatologi, peternakan perikanan, kelautan, kehutanan, dan sosial-ekonomi pertanian yang telah dipertimbangkan dan disetujui oleh Dewan Editor. Keterangan mengenai peralatan, pengamatan, dan teknik percobaan akan diterima sebagai artikel CATATAN. Pedoman Penulisan dicantumkan pada setiap terbitan tercetak. Indeks Penulisan dan subjek serta daftar penelaan (mitra bestari) dicantumkan di tiap nomor terakhir pada setiap volume.
Arjuna Subject : -
Articles 975 Documents
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The Physical Property Changes of Peatland upon Conversion of Oil Palm Plantation to Corn Cropping in Kinali, West Pasaman, West Sumatera Mimien Harianti; Teguh Budi Prasetyo; Junaidi Junaidi; Gusmini Gusmini; Anggun Fitria Yenad
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.502

Abstract

The decrease in oil palm production in Kinali, West Pasaman Regency, has become the factor that makes the farmers convert their peatlands to corn cropping. This study aimed to examine the physical characteristics (irreversible drying) of peatlands due to the conversion of oil palm to corn cropping. Some observations and samplings were conducted by applying a transect method, as it was perpendicular to the collection drain for 2, 200, and 400m from the main drains in three locations as the uses of the lands: (1) oil palm plantations, (2) <2-year corn cropping, (3) >2-year corn cropping. In each land, 3 sample points were taken with 2 repetitions at a depth of 0‒20 cm and 20‒40 cm. The physical properties of peatlands that have been converted from oil palm plantations to corn cropping include the water content increasing from 286.4 to 348.5 and 322.7%, the ash content decreasing from 55.2 to 43.5 and 47.5%, with C-organic increased by 25.9 to 30.7 and 32.4%, fiber content increased from 27.1 to 32.1 and 28.7%, and the volume weight of the peat tended to be similar (0.3 g/cm3). In all land use, irreversible drying occurred; in the oven at 50°C dan 70°C with a drying time of 3´24 hours, and at 150°C, and the drying time of 1´24 hours, the moisture content of 232‒256% in oil palm plantation, 269‒290% in <2-year corn cropping, and 394‒440% in >2-year corn cropping. Irreversible drying occureds more quickly on the peatlands in oil palm plantations rather than in corn cropping. Keywords: corn cropping, irreversible drying, palm oil plantation, peatland
Substitusi Batang Lunak Pada Produksi Pelet Katuk Depolarisasi Untuk Perbaikan Produktifitas Domba Agik Suprayogi; Juang Gema Kartika; Edi Santosa; Arya Widura Ritonga
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.497

Abstract

Depolarized katuk pellets (Sauropus androgynus) as a growth trigger in ruminants have been produced, but are constrained by the adequacy of leaf raw materials. This study aims to utilize the soft stems (BL) of the katuk plant as a substitute for leaf raw materials (D) as much as 15%, and its effect on the productvitas of rams growing. Katuk leaf pellets (100%) and pellets mixed between D (85%) and BL (15%) or DBL, were prepared through a depolarization process. The male rams (21) were divided into 7 groups, 3 heads each, with different pellet-giving treatments. The treatment was the control group, leaf pellets 5 g (D-5), 10 g (D-10), and 15 g (D-15), and also the DBL pellet group 5 g (DBL-5), 10 g (DBL-10), and 15 g (DBL-15) per head daily. Each sheep gets adequate treatment and feed for 3 months. TheDBL-15 and D-15 sheep group showed an improvement in the average percentage of growth in sheep body weight and carcass (p<0.05), which were 54% and 43%, respectively, as well as 74% and 43%, compared to the control group, which was only 46% and 40%. The application of DBL-15 pellets showed a greater percentage of fat deposits, which was 3.4% (p<0.05) than the administration of D-15 pellets, which was only 2.4% and the control group (2.1%). It was concluded that the 15% soft stem to the pellets is still very good as a substitute for the raw material of katuk leaves for the production of depolarized pellets. Keywords: carcass, depolarization, katuk, pellet, sheep
Identifikasi dan Kekerabatan Rhizobia Pohon Mangium dan Sengon Berdasarkan nodD1 dan nifH Misbakhul Bait; Rumella Simarmata; Rahayu Widyastuti
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.627

Abstract

Rhizobia from legumes Acacia mangium (Mangium) and Paraserianthes falcataria (Sengon) have often been isolated and studied for their applications to plants, but studies on the nod and nif genes are still lacking. Even though this plant were often used as a source of paper raw materials and reforestation plants. The aim of this study was to define the genetic relationship of a group of potential strains isolated from tropical legume trees in terms of 16S rRNA, nodD1, and nifH genes. This research method includes the selection of isolates based on the main character of Rhizobiales, to isolate the 16S rRNA, nodD1, and nifH genes from the selected isolates, and to construct a phylogeny tree based on the isolated genes. Two rhizobia were selected based on a selection test, namely DCM 212 from A. mangium and DF13 from P. falcataria. DCM 212 isolate was identified as having the closest similarity to Rhizobium multihospitium CC-13H. The isolate of DF13 had high similarity with Bradyrhizobium elkanii based on 16S rRNA, nodD1, and nifH. The degenerative primer pairs used in this study could not detect nodD1 gene from DCM 212 isolate. Keywords: Bradyrhizobium, phylogeny, rhizobium
Cara Pemupukan yang Menguntungkan Usaha Tani Kentang di Kabupaten Banjarnegara, Jawa Tengah Dewi Sahara; Munir Eti Wulanjari
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.473

Abstract

Potatoes are one of the horticultural commodities with high economic value and have the opportunity to fill the domestic and export markets. However, potato productivity in Central Java tends to decline due to suboptimal fertilization technology. This study aims to assess crop growth, potato production, and the economic feasibility of potato farming. The experiment was carried out in Sumberejo Village, Batur District, Banjarnegara Regency, in September-December 2021 with a pilot demonstration plot covering an area of 0.4 ha by applying dibbling and spreading fertilization. Data on plant growth and production were analyzed using average values and t-tests‒; input-output data were analyzed financially to calculate economic feasibility. The results showed that the dibbling method had an insignificant effect on the vegetative and generative plant growth, but potato production by dibbling was about 3 kg ha-1 compared to production by dispersing. The dibbling method gave a higher profit memberikan nilai keuntungan lebih tinggi with B/C = 0.81 compared to the dispersed method with B/C = 0.68. The change in fertilization from spread to dibble gave high benefits with an indication of MBCR = 8.11. If there is a decrease in production and prices, then fertilization by dibbling has a higher tolerance limit (44.87%) to the losses caused than dibbling fertilization, which has a tolerance limit of 40.49%. Keywords: fertilization methods, economic feasibility, potato, profits, production
Aktivitas Nitrat Reduktase (ANR) Tanaman Jagung pada Pola Tumpangsari yang Diberi Serasah Jagung-Kedelai serta Biochar di Lahan Suboptimal Sidondo Sulawesi Tengah Sjarfuddin Ende; Salawati Salawati; Indrianto Kadekoh; Fathurrahman Fathurrahman; Saiful Darman; Lukman Lukman
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.544

Abstract

The aim of the study was to examine the relationship between nitrate reductase activity and N uptake, tissue N content, N uptake, and chlorophyll content of corn plants in intercropping patterns which are given corn-soybean litter and biochar. The use of plant litter and biochar derived from crop residues as a source of organic matter in different intercropping patterns affected nitrate reductase activity, tissue N content, N uptake, and chlorophyll content of maize. This experiment was carried out on sub-optimal Sidondo land, Central Sulawesi with the main limiting factors being the availability of water and alkaline soil pH (7.21) which were arranged in a divided plot design with five litter treatments as subplots and five cropping patterns as the main plot with three replicates. Parameters observed were N levels, plant tissue N uptake, chlorophyll, and nitrate reductase activity. Collected data were analyzed using Anova and Duncan's multiple random tests. The results showed that corn litter, soybean mixed corn + soybean litter and their biochar in different intercropping patterns affected nitrate reductase activity, nitrogen uptake, chlorophyll levels very significantly (P˂0.01), increased nitrate reductase activity by 9710.86 mol NO2- -1g-1hour-1 at the age of 55 DAP, while N uptake (2237 mg.kg-1), tissue N content (4.33%), and total chlorophyll content (10.61 mg.l-1) were the highest in the litter treatment, corn and soybeans as well as biochar in corn and soybean intercropping (1:2), and (2:4). Thus, the provision of corn and soybean litter and biochar in intercropping systems can increase nitrate reductase activity, N uptake, tissue N levels, and corn chlorophyll levels in the corn-soybean intercropping system. Keywords: chlorophyll, N content of corn plant tissue, nitrate reductase activity, N uptake
Pengaruh Pengolahan pada Sifat Fisis dan Kimia Singkong-Goreng Beku Tiara Indra Saraswati; Dede Robiatul Adawiyah; Fransisca Zakaria Rungkat
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.528

Abstract

Cassava (Manihot esculenta) can be used as the main source of carbohydrates besides rice. Although cassava has been widely used, the diversification of cassava islimited. Appropriate processing methods are needed so that the nutrition value of cassava can be maintained and safe for consumption. This study aimed to evaluate the nutrition value of frozen cassava fries through proximate, minerals, cyanide content, and trans fatty acids analysis and to assess the physical quality, such as color and texture. The best-frozen cassava fries processing methods obtained were steaming 100°C for 25 minutes and deep frying 180°C for 45 seconds. The results showed that color analysis L (tingkat kecerahan), a* (koordinat kromatisitas), and b* (koordinat kromatisitas), were 70.39±0.98, -2.11±0.72, and 28.06±1.06. The levels of protein, fat, and carbohydrates were 1.14±0.271 g/100g, 12.18±0.017 g/100g, dan 35.80±0.023 g/100g. The levels of Ca, Mg, and Fe were 274.047±7.42 mg/100g, 17.3±0.31 mg/100g, dan 4.59±0.26 mg/100g. The cyanide level decreased to 2.602±0.00 mg/kg from 75.458±0.00 mg/kg. In all frying treatments, trans fatty acids were not detected. In conclusion, frozen cassava fries have potential as a healthy diet component. Keywords: cassava, deep frying, frozen-fried cassava
Diversitas Pangan Fermentasi Berbasis-Susu di Indonesia dan Kandungan Gizinya Firyal Noviatanti Nabilah; Sri Listiyowati; Rika Indri Astuti
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.552

Abstract

Indonesia has abundant and diverse food commodities, including fermented food. However, metadata analysis about the diversity of fermented foods has not been reported. In addition, a comparison of the nutritional content of milk-based fermented foods is also not yet available. Therefore, this study aims to reveal the diverse status of fermented foods, to determine the nutritional content, especially of fermented milk-based foods, namely dangke, and their comparisons between milk-based fermented products. The research method included literature study, making dangke, proximate analysis of dangke, and statistical data analysis. Literature studies show that fermented foods and beverages in Indonesia were most reported in 2017, 2018, and 2019 respectively. Although most fermented foods are not known for their area of origin, the microbial groups involved in their processing come from the bacterial group rather than fungi, mainly through the lactic acid fermentation mechanism. Microbes' role in fermented products is diverse and can be grouped into five groups. The primary role of microbes is to support bioprocesses. Among milk-based fermented products, dangke is one of the traditional products with a fat content that is significantly different fat content from yogurt, kefir, and dadih, and the protein is not significantly different from yogurt, kefir, dadih, and mozzarella cheese. This nutritional content analysis indicates differences in fat and protein content among fermented milk-based food products. Keywords: dangke, fat content, metadata, protein content, proximate analysis
Pengaruh Curah Hujan pada Produksi Padi Gogo di Indonesia Agung Budi Santoso; Tavi Supriana; Moral Abadi Girsang
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.606

Abstract

Upland rice has high potential development that causes the potential of dry land in Indonesia is quite large. However, the productivity of upland rice and its contribution to national paddy production is still low. Upland rice mostly is cultivated based on rainfall so productivity of upland rice depends on fluctuation of rainfall at the area. Theoretically, Indonesia has three different rainfall types, namely; equatorial, monsoonal, and local. This study aimed to identify the effect of rainfall on upland rice production. This study used secondary data consisted of upland rice yield, precipitation, and harvested area in 1990–2017. Data were analyzed by quadratic nonlinear regression and then It was analyzed by Mann-Whitney different test. Selected location were North Sumatera Province, West Kalimantan, Central Sulawesi, East Java, South Sulawesi, South Kalimantan, and Maluku. Results show that three rainfall area types statistically differences. Precipitation at Equatorial area influences upland rice yield by 3.15 tons. Furthermore, precipitation at monsoon and local area have effects on reducing production by -0.17 ton and -10.66 ton respectively. Keywords: nonlinear regression, precipitation, productivity, upland rice
Pemodelan Habitat Potensial Tumbuhan Lebah Apis dorsata di Membalong, Belitung Muhammad Basrowi; Ibnul Qayim; Rika Raffiudin
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.562

Abstract

The forest becomes a habitat for honey bees to carry capacity for the supply of feed sources. Apis dorsata requires the availability of plants for supplying nectar and pollen. Traditional system in Belitung uses rafters for the efficiency of honey harvesting. Studies about preference habitats for bee forage become important to perform conservation of the honey bees. Therefore, the objective of this study was to (1) identify the composition, structure distribution patterns and vegetation profiles, (2) identify the area of the appropriate habitat model and environmental variables that influence the carrying capacity to provide bee forage of A. dorsata. Purposive sampling was used to analyze vegetation structure, distribution patterns, and vegetation profiles. The determination of the distribution of species is obtained from the Morishita index. We used MaxEnt for species distribution modeling to predict the potential plant habitat of bee plants. Our results showed that five most highest-importance plants. Myrtaceae is a family with dominant compositions and INP such as Melaleuca cajuputi, Tristaniopsis obovata, and Eugenia leptantha. The structure of other families such as Theaceae (Schima wallichii), and Clusiaceae (Calophyllum pulcherrimum), are the species that have the highest importance. The pattern of distribution of bee forage is clumped. The canopy cover around the honeycomb area tends to be relatively open. Based on the modeling habitat, categories with very appropriate for the presence of bee forage not spread throughout Membalong Regency with a percentage of the area (4.86%) and in the buffer zone (10.53%), environmental variables that influence the distribution are temperature seasonality, maximum temperature warmest month, slope, precipitation on warmest quarter and soil ph. Keywords: habitat modeling, rafter, spatial distribution, vegetation analysis, vegetation profiles
Evaluasi Pakan Daun Ubi Jalar dan Daun Singkong pada Kualitas Telur Itik yang Disimpan pada Suhu 5°C Tera Fit Rayani; Sumiati Sumiati; Arif Darmawan
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.488

Abstract

Egg yolks contain omega-3 and omega-6 fatty acids that are easily oxidized during storage, so they must be protected. The objective of this study was to evaluate the effect of feeding containing sweet potato leaves meal (TDU) and cassava leaves meal (TDS) on the quality of duck eggs stored at 5 °C for 8 weeks. This study used a completely randomized design, 6 ´ 3 factorial design with 4 replications. Factor A was feed treatment (R0 = control feed without TDU or TDS; R1 = feed containing 0% TDU and 10% TDS; R3 = feed containing 5% TDU and 0% TDS; R4 = feed containing 5% TDU and 5% TDS; R5 = f eed containing 5% TDU and 10% TDS). Factor B was egg storage time (0, 4, and 8 weeks). A total of 144 duck eggs were used in this study. The results showed no interaction between the supplementation of TDU and TDS with the storage time on the quality of stored eggs. Supplementation of TDU or TDS or their combination significantly (p<0.05) increased the yolk score and yolk egg weight. Storage time for 4 and 8 weeks significantly (p<0.05) decreased egg weight, shell percentage, egg white percentage and weight, Haugh unit, and egg yolk score, but significantly (p<0.05) increased egg yolk percentage and weight. This study concluded that supplementing 5% sweet potato leaves meal and 10% cassava leaves meal resulted in the highest egg yolk color score. Storage time for 4 weeks can still maintain duck eggs with AA quality. Keywords: cassava leaves, duck eggs quality, storage, sweet potato leaves

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