Jurnal Ilmu Pertanian Indonesia
ISSN : 08534217     EISSN : 24433462
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.
Articles 641 Documents
Kebiasaan makanan ikan lidah (Cynoglossus lingua) di perairan ujung pangkah, gresik, jawa timur Sulistiono, Sulistiono; Sari, Citra; Brodjo, Murniarti
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

One of an fishery commodity in Ujung Pangkah is flatfish ( Cynoglossus lingua). This study was conducted in Ujung Pangkah waters, Gresik, East Java using fish samples (N=94 males, N=108 females) collected during August 2005 to January 2006. The Study aimed to investigate food habits of the flat fish caught in the area. Research result shows that shrimps was a main food, while crab and Bivalva were complementary food both for male and female fish. Based on index of stomach contents, the index was higher during September for male, and August for female fish. Kinds and percentage of stomach contents varied according to size both for male and female. Therefore, the main food of the male and female fish was simmilar (e.g. shrimps) According to simmilariy index, food habit of the male and female fish is simmilar.Keywords: Flatfish ( Cynoglossus lingua), Ujung Pangkah, Gresik, food habits.
Kandungan IAA, serapan hara, pertumbuhan dan produksi jagung dan kacang tanah sebagai respon terhadap aplikasi pupuk hayati Wibowo, Sigit Tri; Hamim, Hamim; Wahyudi, Aris Tri
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The aim of this research was to study IAA content, nutrient uptake, growth and productivity of maize and peanut in response to application of biofertilizer. The research was conducted in a green house of Cikabayan IPB Farm, Bogor Agriculture University, Darmaga, Bogor, West Java. A completely randomized design was applied in single factor experiment for maize and peanut with 3 replications. The treatments consisted of 4 factors: I. Without fertilizer, II. 100% biofertilizer (dosage 100g/pot), III. 100% inorganic fertilizer, and IV. Combination of biofertilizer and inorganic fertilizer with 50% dosage. Biofertilizer was applied using compost enriched by Pseudomonas sp., Bacillus sp., Azotobacter sp., Azospirillum sp., Rhizobium sp, and P-solubilising bacteria. The dosage of inorganic fertilizer was 0.5 gfpot of Urea; 0.5 g/pot of SP-36; 0.375 g/pot of KCI for maize, and 0.125 g/pot of Urea; 0.5 g/pot of SP-36; 0.375 g/pot of KCI for peanut. Application of biofertilizerenhanced auxin content of maize by 73-159°/o, but not in peanut. The treatment also increased the uptake of N,P, and K of both plants by 2 to 35 times as compared to control plant. The production increased by 270% onmaize and 66% on peanut due to application of biofertilizer. The result showed that application of compost enriched by microbial activator was able to supplement inorganic fertilizer for growth and production of maize and peanut.Keywords: Biofertilizer, nutrient uptake, hormone IAA, morphology responses.
Pendugaan model pertumbuhan dan bentuk sebaran spasial populasi banteng (Bos sondaicus dAlton) di taman nasional alas purwo jawa timur Santosa, Yanto; Paturohman, Gugum Gumilar
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Population of bulls in the world is decreasing to 80%. on Java and Bali, the habitat of the species has declined by about 20% and 30% respectively (IUCN 2003). In Java, especially in Alas Purwo national park, the decreasing population of bulls is caused by hunting and degradation of habitat. the estimation of growth bulls population in APNP is increase. The size of population in the beginning is 588 individuals the rate of growth is 0.093 and caryying capacity of habitat is 4772 individuals.
Peran PEG 400 dalam pembuatan lembaran bioplastik polohidroksialkanoat yang dihasilkan oleh Ralstonia eutropha dari Substrat Hidrolisat Pati Sagu Syamsu, Khaswar; Hartoto, Liesbetini; Fauzi, Anas Miftah; Suryani, Ani; Rais, Dede
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The purpose of the research was to investigate the effects of PEG 400 addition on the characteristics of bioplastic polyhydroxyalkanoates (PHA). PHA was obtained by cultivating Ralstonia eutropha on hydrolysed sago starch substrate using fed batch method for approximately 96 hours. The biomass concentration obtained was 4 g/L with PHA yield 20-30% of dry cell weight. The bioplastic was formed with solution casting method in which chloroform was used as solvent and PEG 400 was used as plasticizer. The concentrations of PEG 400added were 10, 20, and 30% (w/w), respectively. Bioplastic properties which were tested were tensile strength, elongation to break, density, thermal properties, cristalinity, and functional group. The addition of plastisizer tend to increase tensile strength and elongation to break, but decrease density, cristalinity and melting point. Bioplastic with 30% PEG 400 addition gave the best results. Bioplastic with 30% PEG 400 gave a value of tensile strength of 0.083 MPa; elongation to break of 0.881%; density of 0.7881 g/cm3;  melting point of 158.95 ac; and cristalinity of 44.58%. With these properties, the resulted bioi plastic may be used for surgical strings. Keywords: Bioplastic, Polyhydroxyalkanoates (PHA), Ralstonia eutropha, hidrolysed sago starch, PEG 400
Deteksi Dini Penyakit Tumor Sel Darah Myelosit Leukosis melalui Pemeriksaan Ulas Darah Agungpriyono, Dewi Ratih; Huminto, Hernomoadi; Estuningsih, Sri; Satyaningtijas, Aryani Sismin
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Myelocytes blood cell tumor in chicken is a disease caused by retrovirus, avian leukosis virus subgroup J (ALV-J). The virus has the same group as human retrovirus (HIV) which caused AIDS, but the avian type possesses oncogenic properties, that could induce cell transformation and tumor formation. ALV-J stimulates the bone marrows myelocytes and transforms them into tumor cell myelocytoma. The tumor cells then metastasis through the circulatory system causing myeloid leukosis and tumor cells accumulation in various internal organs or myelocytomatosis. This study was done on the base of the leukosis behavior of the tumor. The finding of the metastasis tumor cell in the blood smear examination is thought could be use as the diagnostic clue of the disease. Blood smear from sick chickens are collected and stained with some chemical staining substance such as may grunwald-giemsa, hematoxyllin eosin, periodic acid Schiff, congo red, toluidine blue, and sudan black B. Cytochemistry character of the blood cells was observed using light microscope. The result showed that myelocytes granules were best observed using hematoxyllin eosin, periodic acid Schiff, congo red and toluidine blue while may grunwald-giemsa, and sudan black B could not differentiate the granules. By this method, the field veterinarian will able to screen the suspected chicken flock for myeloid leukosis earlier than the occurrence of tumor formation.
Uji teknologi inokulum fungi ektomikoriza dan penambahan asam oksalat untuk meningkatkan pertumbuhan Hopea mengarawan Riniarti, Melya
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Application of ectomycorrhizal fungi on forestry depend on some factors. Inokulum technology is one of the important factor. The aim of this research are to compare the affectivity of two inoculums from two Scleroderma spp., and to find the effect of oxalate acid on ectomycorrhizal colonization. Using cluster randomized design with ectomycorrhiza as the cluster (S. columnare and S. dictyosporum); inoculums (granular and tablet) and oxalate acid (1 times a week; 2 times a month; 4 times a month and none) as the factors. Resultshowed that granular inokulum can enhance the growth of Hopea mengarawan better than tablet inokulum. Oxalate acid can enhance colonization up to 8 fold.Keywords: Ectomycorrhizal, inokulum, hopea, oxalate acid, scleroderma.
Estimasi nilai ekonomi air irigasi pada usaha tani padi sawah di daerah irigasi van der wijce, kabupaten sleman, Yogyakarta Syaukat, Yusman; Siwi, Anggara Ajeng Nilam
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
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Abstract

Demand for rice increases with population and over time. However, the challenges to meet the increasing demand for rice are constrained by some factors: conversion of agricultural wetland (paddy field) to nonagricultural uses, deterioration of irrigation channals, increase scarcity of water, and increase intersectoral competition of water use. These conditions have raised the concern of water irrigation distribution efficiency in rice production. Agricultural sector has to produce more rice with less irrigation water. In addition, water irrigation charges (IPAIR) are also problematic in the area, since there is no water charge. The purpose of this research is to estimate the economic value of water irrigation at Vander Wijce irrigation areas in Yogyakarta, to determine the more appropriate water charges; and to evaluate the differences in water values with respect to their locations (upper, middle, and lower areas), cropping intensity, and rice productivity. Farmers at the upper irrigation areas could plant rice up to three times a year, while at the lower areas only twice a year. The productivities of rice were also different between these two areas, where the upper areas used more water and resulted in higher yields compared to the lower ones. Water values was estimated using Wicksteeds product exhaustion approach. These results implied that the values of water were higher at the upper areas compared to the lower ones. The estimated value of water was about Rp 44/m3 in the upper areas, while in the middle and lower areas were about Rp 32 m3/ha and Rp 23 m3/ha, respectively. Since there is no water charge in the area, there is no fund to cover the costs of water distribution and maintenance. This could lead to unsustainable irrigation management. The above estimated water values could be used as benchmark, the maximum level, by the local government of Sleman and the farmers groups in the irrigation areas in determining the irrigation water charges and maintaining the sustainability of irrigation water services. However, this water charge has to be followed by the improvement in water management system to maintain effective and efficient water distribution among the farmers. Keywords: Rice production, efficient water use, water value and tariff, sustainable irrigation services.
Dampak Perambahan Hutan Taman Nasional Lore Lindu Terhadap Fungsi Hidrologi Dan Beban Erosi (Studi Kasus Daerah Aliran Sungai Nopu Hulu, Sulawesi Tengah) Hidayat, Yayat; Sinukaban, Naik; Pawitan, Hidayat; Tarigan, Suria Darma
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The research was proposed to identify rainforest conversion impact on hydrologic function and soil erosion, and its simulation using ANSWERS model. Surface runoff and soil erosion were measured in soil erosion plots and outlet of Nopu Upper Catchment. Rainforest conversion to agricultural lands were significantly increased soil erosions and surface runoffs. Soil erosion from maize and peanut rotation was higher 2061.8% than natural forest. It higher value also in intercroping young age cocoa, maize and cassava and maize were 2023.8% and 2012.3% respectively. While surface runoffs increased up to 761.7°/o on bare plot, 567.5% on medium age cocoa, 446.8°/o on young age cocoa, 415.1°/o on intercroping young age cacao, maize and cassavas, 405.9°/o on old cocoa, and 329.5% on intercroping young age cacao and cassavas. Crop and management factor (C factor) value is significantly corelated with outputs of ANSWERS model. Using daily daily C factors, the ANSWERS model performs well in predicting soil erosion which is showed by determination coefficent (Jr = 0.89), model efficiency (0.86), and average of percentage model deviations (24.1%). Whereas using USlE C factor, model accuracy lower which represented by model coefficient (0.40) and average of percentage model deviations (63.6%). Using daily C factors, ANSWERS model simulation indicates rainforest conversion into agricultural lands on Nopu Upper Catchment has caused soil and water loss 3190.5 ton/year and 115441.0 m3/year, respectively. Agroforestry system practices in agricultural lands which in line with reforestation in stream line and steep agricultural areas (slope> 40°/o) was effective to reduce soil erosions up to 77.6°/o.
Evaluasi Ciri Mekanis Dan Fisis Bioplastik Dari Campuran Poli (Asam Laktat) Dengan Polisakarida Paramawati, Raffi; Wijaya, Christofora Hanny; Achmadi, Suminar Setiati; Suliantari, Suliantari
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The study was aimed to evaluate physical and mechanical characteristics of blend of polylactic acid (PLA)and four types of polysaccharides, namely carrageenan, agar, tapioca, and garut starch. Agar and carrageenanshowed their ability to blend well with the PLA at a temperature of approximately 60ac, which was easilyobserved. Film sheets that were casted manually with better properties needed additives of triethanolamine oroleic acid, in terms of tensile strength, elastic modulus, and percent elongation at break which were categorizedas medium compared to other biodegradable plastics. Microstructure of the selected film revealed irregularformation of surface or amorphous, indicating that these films cannot be stored for a long period of time.
Faktor-Faktor Yang Mempengaruhi Nilai Tunggakan Kredit pada Program Pemberdayaan Ekonomi Masyarakat Pesisir di Kabupaten Indramayu Asmara, Alia
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
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Abstract

The objectives of this study were to analyze the income level of household, and to analyze the factors which influential non performance loan. This was a case study with purposive sampling method. The analysis comprised of income analysis, and econometric model. The results showed that the beneficiaries were in productive age, the educational level was relatively low, the average number of family member was 4 persons. The occupation of the user group community household mostly was fisherman with about 20 years experience. The major constraint of fisherman was the limited funding source. The income level of household was vary and the highest on marketing was about Rp 1,556,250/month. The factors that caused non-performing of loan return were the amount of loan and the level of education.Keywords: user group community household; income level; and non performance loan

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