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Jurnal Ilmu Pertanian Indonesia

JIPI
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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.

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Articles 975 Documents

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Pertumbuhan dan Produksi Rimpang Kencur (Kaempferia galanga L.) pada Ketinggian Tempat yang Berbeda Subaryanti Subaryanti; Yohana Caecilia Sulistyaningsih; Dyah Iswantini; Triadiati Triadiati
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Galanga (Kaempferia galanga L.) is one of the potential medicinal plants with high demand. Therefore, galanga cultivation was still quite promising. To obtain the optimum growth and high rhizome production, the superior galanga accessions are required. The optimal growth and high production of galanga accessions will be obtained if cultivated at the area with appropriate altitude. The purpose of the study was to obtain galanga accession with a better growth and high yield at the area with a suitable altitude. This study used split-plot design; altitude as a main plot and accession as a subplot. The location as a main plot consisted of altitudes of 214 and 780 masl. This study used seven accessions i.e., accession of PBG (Purbalingga), CLP (Cilacap), PWJ (Purworejo), KRA (Karanganyar), PCT (Pacitan), MAD (Madiun), and GAL2 (Galesia 2) as control. The results showed that different altitudes significantly affected the total chlorophyll content, stomatal conductance, transpiration rate, photosynthesis rate, dry weight, and rhizome yield. The number of leaves was influenced by altitude and accession of galanga. The interaction between altitude and accession of galanga significantly affected the leaf area and the soluble sugar concentration in the galanga rhizome. The rhizome yield at low altitude was higher than in high altitude. PBG (Purbalingga) and PWJ (Purworejo) accessions have the potential to be developed in locations with an altitude of 214 masl. Keywords: altitude, Kaempferia galanga, rhizome

Pengaruh Asam Humat terhadap Produktivitas dan Serapan Nitrogen pada Tanaman Kangkung Darat (Ipomoea reptans Poir.) Deris Trian Rahmandhias; Diah Rachmawati
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

An uncertain climate and infertile soils are factors that cause fluctuations in crop yields. In addition, improper application of fertilizers causes kangkong plants to not absorb nutrients optimally. The application of humic acid as a biostimulant can be used to improve soil structure and optimize the productivity of kangkong through the absorption of nutrients from fertilizers or elements around plants. This study aims to study the effect of application of humic acid on growth, productivity, and nitrogen uptake in kangkong (Ipomoea reptans). This research was carried out with completely randomized design (CRD) with a single factor including 7 treatments, namely control, application of humic acid through leaves at a dose of 5 mg.L-1, 20 mg.L-1, and mg.L-1 and through roots a dose of 5 mg.L-1, 20 mg.L-1, and 35 mg.L-1. Planting media used without the addition of basic fertilizers to see the most effective effect of the application of humic acid. The results showed that application of humic acid dose of 20 mg / L through leaves and roots caused an increase in plant height, stem diameter, number of leaves, biomass and nitrogen uptake of kangkong. The highest chlorophyll level of kangkong plants was produced in the treatment of humic acid dose of 35 mg.L-1 through leaves. Based on the research it can be concluded that the application of humic acid through leaves and roots increase growth, productivity and nitrogen uptake in kangkong. Keywords: humic acid, Ipomoea reptans, nitrogen, productivity

Strategi Pencegahan Kebakaran Hutan dan Lahan di Kesatuan Pengelolaan Hutan Kubu Raya, Ketapang Selatan, dan Ketapang Utara di Provinsi Kalimatan Barat Arief Rachman; Bambang Hero Saharjo; Eka Intan Kumala Putri
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

West Kalimantan Province, Indonesia, is an area that is crossed by the equator and its territory is mostly peat area. The aim of this study was to examine the impact of losses due to forest and land fires and srategies for preventing forest and land fires in the Forest Management Unit (FMU) in West Kalimantan Province. This research was conducted from May to October 2018 in the FMU Kubu Raya, the FMU South Ketapang, and FMU North Ketapang. The research method used was descriptive method. Vegetation Data were measured with the stratified random sampling in 20 x 100 m transect. Social economic data were taken by using 30 respondents from 6 vilages with based on purposive sampling. Data analysis regarding losses due to forest and land fires was performed using the economic valuation value analysis while forest and land fires' prevention strategies in the FMUs were determined using SWOT and IE (Internal-External) Matrix. The results showed that the area of forest and land fires reached 50 ha with a total loss of IDR 8 billion. Forest and land fire prevention strategies using SWOT were determined in the growing and developing parts with the implemented alternative strategies, i.e., intensive and integrative. Keywords: economic valuation, forest management, peatland, SWOT, West Kalimantan

The Diversity of Insect in Paddy Field in Karawang, West Java with Different Pest Management Techniques Lutfi Afifah; Darso Sugiono
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

The practice of rice crop cultivation will affect the trophic structure and the diversity of insects that are formed. One of the common cultivation practices carried out by farmers was the control of pests by using pesticides. This study aimed to find out which pest management strategies that are effective in maintaining environmental health and understanding how natural enemies were affected by the application of synthetic pesticides. The first treatment was paddy field with integrated pest management (IPM), the second treatment was conventional rice field with a technique of chemical pest management (C-T), while the third treatment was mixed pest management (M-T). Insect sampling was conducted using sweep net, pitfall trap, and direct observation for 10 weeks after planting. Overall, it was found 100 morphospecies, 9 Orders, 56 families, with a total abundance of 6242 individuals per planting season. Based on functional roles it was found 39% as herbivores, 30% as predators, and 14% as parasitoids, 1% pollinators, and 13% decomposers. High insect diversity and abundance were found in the plots using low synthetic pesticides. The C-T control plot had a lower relative abundance of herbivorous insects, parasitoid insects, predators, and decomposers than the other control plots. H' and D index in the Integrated Pest Management (IPM) and Mixed Pest Management (M-T) plots did not show significant differences but differed significantly from the Chemical Control plot (C-T). Therefore, controlling the herbivore insects could apply the pest management based on IPM strategies. Keywords: Diversity of insects, integrated pest management (IPM), natural enemies, pesticides, rice pests

The Fruit Characteristics of Ambon Forest Nutmeg (Myristica fatua Houtt) and Banda Nutmeg (Myristica fragrans Houtt) Karmanah Karmanah; Slamet Susanto; Winarso Drajad Widodo; Edi Santosa
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Ambon Forest nutmeg (Myristica fatua Houtt) is one of the endemic plants in Indonesia. The morphological characteristic of Ambon Forest nutmeg is slightly different from that of Banda nutmeg (Myristica fragrans Houtt) i.e., it is not used as spices, but its oil is used as a lamp oil. This study aimed to determine the chemical components and essential oils of Ambon Forest nutmeg derived from its seeds, mace, and flesh compared to Banda nutmeg. Extractions of essential oils were performed using a steam hydro-distillation. Analysis of chemical compositions and contents of essential oil was carried out using a Gas Chromatography-Mass Spectrometry (GCMS) instrument and SNI 06-2388-2006 method. The essential oil contents in Ambon Forest nutmeg were relatively low, i.e., 0.63% in the seeds, 0.30% in the mace, and 0.04% in the flesh compared to Banda nutmeg i.e., 1% in the seeds, 40% in the mace, and 3.5% in the fruit flesh. The chemical compositions of essential oils showed that M. fatua Houtt contained 12 compounds in the seeds, 24 compounds in the mace, and 17 compounds in the fruit flesh, while for Banda Nutmeg, the contents of essential oils were found 18 compounds in the seeds, 10 compounds in the mace, and 15 compounds in the fruit flesh. M. fatua Houtt contained the highest Copaene, i.e., 28.41% in the seeds, 10.42% in the mace, and 23.33% in the fruit flesh. Myristicin, as the main marker compound of nutmeg oil, was also found in Ambon Forest nutmeg i.e., 1.3% in the seeds, 1.16% in the mace, and 5.19% in the fruit flesh. However, these results showed lower contents when compared to Banda nutmeg with Myristicin contents of 8.72% in the seeds, 10.14% in the mace, and 10.46% in the fruit flesh. Keywords: Essential oil, Myristica fatua Houtt, Myristica fragrans Houtt, Nutmeg

Isolation and Capability of Dark Septate Endophyte Against Mancozeb Fungicide Jean Nihana Manalu; Bonny Poernomo Wahyu Soekarno; Efi Toding Tondok; Surono Surono
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Mancozeb is a group member of dithiocarbamat fungicides that most widely applied in the field. The use of mancozeb causes residues that have negative effects on agricultural production system and on agricultural environment. This research aimed to obtain dark septate endophyte (DSE) fungal isolates that are tolerant to mancozeb fungicide. The study was consisted of three steps, i.e., the isolation of DSE fungi from chili roots, the effect of DSE fungal isolates on chili seeds, and the growth ability of DSE isolates on medium supplemented with mancozeb. Thirteen DSE fungal isolates were isolated from chilli pepper roots and grown in the field assumed to be contaminated by pesticides. The isolates of DSE fungi caused the growth of chili seeds were normal and abnormal. Seven DSE isolates were able to grow well at PDA medium suplemented with mancozeb at concentrations of 100, 200, 400, and 800 ppm with different levels of relative growth inhibition. Mancozeb on PDA medium influenced the mycelial growth and colony color of DSE fungal isolates. The biomass of DSE fungal isolates were reduced when they were grown at malt extract broth (MEB) medium suplemented various levels of mancozeb. Keywords: dithiocarbamat, relative growth inhibition, tolerant

Aplikasi Amelioran Tanah dan MycoSilvi pada Falcataria sp. dan Ochroma bicolor Rowlee. untuk Reklamasi Lahan Pascatambang Pasir Silika Khoryfatul Munawaroh; Sri Wilarso Budi; Prijanto Pamoengkas
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.334

Open pit mining of silica sand causes some soil degradations and environmental impacts, such as lowering soil pH, lowering soil fertility, soil compaction, and toxicity of micronutrients such as Al, Fe, and Zn. The aim of this study was to analyze the soil properties of land post mining of silica sand and to analyze the growth response of Falcataria sp. and Ochroma bicolor by combination of soil ameliorant and MycoSilvi. The experimental design was split plot design of two treatment factors, MycoSilvi and soil ameliorant. The main plot is MycoSilvi that consist of two levels (MycoSilvi and without MycoSilvi). The subplot is soil ameliorant that consisted of six levels (compost 0 g, lime 0 g; compost 0 g, lime 1.56 g; compost 0 g, lime 3.12; compost 9 g, lime 0 g; compost 9 g, lime 1.56 g; compost 9 g, lime 3.12 g). The results showed that the soil ameliorant (lime 3.12 g and compost 9 g) and MycoSilvi was the best treatment to increase height, diameter, biomass, and mycorrhizal colonization of Falcataria sp. and O. bicolor. Keywords: MycoSilvi, reclamation, soil ameliorant

Model Simulasi PertumbuhanTanaman Jagung Manis Hibrida pada Jarak Tanam yang Berbeda Ervan Ferdiansyah; Handoko Handoko; Impron Impron
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.396

A sweet corn model was developed to simulate the growth and development of hybrid-sweet corn under different crop denssities. This research is comparing the data of the simulation model and the actual observation data in the field, which is then presented in graphical form. This model was conducted on six treatment combinations between three types of spacing and two varieties. The simulation model requires meteorological data (average temperature, humidity, precipitation, and radiation), soil water data, and crop chracteristics. There are five of the six plant combinations which graph show that the model is able to simulate the total maize corn biomass every week. The model was able to estimate 93% of the actual biomass and described the growth and development of hybrid-sweet corn as well. Keywords: estimating biomass, models and simulations, plant growth

Pertumbuhan Bibit Cendana (Santalum album L.) dengan Inang Primer pada Intensitas Radiasi Berbeda Yudi Riadi FanggidaE; Impron Impron; Tania June
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.478

The primary host of sandalwood seeds (Santalum album L.) which is widely used in the nursery process is Alternanthera sp. However, the local name given to this primary host is same as that given to Portulaca sp. The same local name for these two-different species may cause mistakes in the use of the primary host during the cultivating process of sandalwood. Meanwhile, the ability of the Portulaca sp. as the primary host is unknown. Information about the right radiation intensity of the sandalwood seedling is still limited. The study aims to analyze the growth of sandalwood seedlings grown with primary host of Alternanthera sp. and Portulaca sp. at different radiation intensities. The completely randomized design with two treatments factor were used, namely differences in shade levels (without shade, 25, 50, and 75%) and differences in the types of primary hosts. The result showed that the primary hosts of Alternanthera sp. have the best growth for sandalwood seeds compared to sandalwood seedlings planted with Portulaca sp. The shading must be adjusted to the type of primary host. Sandalwood seeds grown with Alternanthera sp. as primary hosts grow best at 50% and 75% paranet shade conditions, in radiation range of 9.86–12.17 MJ/m2/day. Sandalwood seeds planted with Portulaca sp. as a primary host grow best in 25% paranet shade, that is at average radiation of 13.62 MJ/m2/day. The use of Alternanthera sp. and shade provision (50–75%) is highly recommended in sandalwood seedlings. Keywords: haustoria, hemiparasite, primary host plant, sandalwood, symbiosis

Daya Saing Bawang Merah di Provinsi Maluku dan Upaya Peningkatannya Agung Budi Santoso; Maryam Nurdin; Ismatul Hidayah
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.365

Shallot is one of horticultural commodities with a high demand. Majority of shallots in Maluku are bought from Surabaya and Makasar. However, the government continuously does horticultural development in the center of shallot production. The objective of this study was to analize the competitiveness and comparativeness of farming between shallots which are cultivated by local farmer and shallots which are imported. There were three locations of research i.e., Maluku Tenggara, Seram Bagian Barat, and Maluku Tengah. Primary data were collected by quessioner and used purposive sampling method. Primary data were analyzed using policy analysis matrix. The results showed that shallot farming in Maluku has comparative and competitive advantages compared with imported shallots. Agricultural government policy effectively increases local farmer insentive. However, it shows a decreasing trend while increasing productivity of shallot. Shallot farming having production higher than 8 ton/ha need output subsidy to give price guarantee. Effort to increase shallot competitiveness is conducted by increasing productivity and developing a farmer institution to make a sustainable agricultural development. Keywords: shallot, competitiveness, competitive and comparative

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