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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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Evaluasi Ciri Mekanis Dan Fisis Bioplastik Dari Campuran Poli (Asam Laktat) Dengan Polisakarida Raffi Paramawati; Christofora Hanny Wijaya; Suminar Setiati Achmadi; 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.
Dampak Perambahan Hutan Taman Nasional Lore Lindu Terhadap Fungsi Hidrologi Dan Beban Erosi (Studi Kasus Daerah Aliran Sungai Nopu Hulu, Sulawesi Tengah) Yayat Hidayat; Naik Sinukaban; Hidayat Pawitan; Suria Darma Tarigan
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.
Penjernihan Nira Tebu Menggunakan Membran Ul Trafil Trasi Dengan Sistem Ali Ran Silang Suprihatin Suprihatin
Jurnal Ilmu Pertanian Indonesia Vol. 12 No. 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Membrane ultrafiltration is one alternative technology to produce a high quality cane sugar with reasonable cost, because its ability to produce a brighter color and lower impurities as well as sulphur free of product. This technology can reduce process steps, chemical and energy demand, so that the production cost is potentially reduced significantly. This research work was aimed to study the performance of various membrane filtrations in the application for clarifying sugar cane juice, covering the achievable flux, membrane rejection againstimpurities, and quality of the filtered juice. The experiments were conducted according to the principle of cross flow using three different transmembrane pressures of 0.7, 1.4, and 2.1 bar and cross flow rate of 0.42 m/s. Various membranes were studied in this experiments both commercial ultrafiltration membrane and ultrafiltration membrane prepared in our laboratory. Sugar cane juice before and after clarification were characterized by measuring the parameters of brix, sucrose concentration, solution color, clarity, and pH. Thepolisulfone membrane, which was prepared in our laboratory, produced fluxes in the range of 25-30 L/m2.h at the transmembrane pressures of 0.7-2.1 bar. The membranes increased clarity of the juice from app. 10 to 60% of transmition and reduced color up to 80-90%, comparable with the results of the commercial ultrafiltration membrane.Keywords: cane sugar industry, sugar cane juice clarification, membrane ultrafiltration
Estimasi Nilai Ekonomi Air Irigasi Pada Usaha Tani Padi Sawah di Daerah Irigasi Van Der Wijce, Kabupaten Sleman, Yogyakarta Yusman Syaukat; Anggara Ajeng Nilam Siwi
Jurnal Ilmu Pertanian Indonesia Vol. 14 No. 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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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 Wicksteed's 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.
Studi persepsi masyarakat tentang pengelolaan lanskap agroforestri di sekitar sub DAS Way Besai, provinsi Lampung Christine Wulandari
Jurnal Ilmu Pertanian Indonesia Vol. 15 No. 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The narrowness of the average land that belongs to the community (respondents who have a good level of perception towards agroforestry landscape management as much as 42.07%, moderate perception was 28.28% and 29.65% respondents have low level of perception. Based on this research had known that very significant factors were land size, education and the amount of training; income was significant factor, and age and occupation concluded as not significant factors. 
Tingkat Prevalensi Escherichia Coli Dalam Daging Ayam Beku yang Dilalulintaskan Melalui Pelabuhan Penyeberangan Merak G. I. Dewantoro; M. W. Adiningsih; T. Purnawarman; T. Sunartatie; U. Afiff
Jurnal Ilmu Pertanian Indonesia Vol. 14 No. 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The aimed of this study was to determine prevalence of Escherichia coli in frozen chicken meat transported through Merak port. The samples were taken from DKI Jakarta (16 samples), Bekasi (11 samples), Bogor (8 samples), and Serang (18 samples). The average number of E. coli in frozen chicken meat from DKI Jakarta was 0.43x101±0.28x101 MPN/g, Bekasi was 10.4x101 ±33.04x101 MPN/g, Bogor was 0.28x101 ±0.23x101 MPN/g, and Serang was 6.72x101±25.79x101 MPN/g. Based on the result of ANOVA, the four areas had no significance in diferrence (p>0.05). The conclusion of this study showed that the average number of E. coli from Bekasi and Serang were over the maximum limit of microbial contamination as permitted by SNI 01-7388-2009 (1x101 MPN/g), whereas DKI Jakarta and Bogor were under the maximum limit. The prevalence of E. coli in frozen chicken meat from DKI Jakarta was 31.25°/o, Bekasi 31.25°/o, Bogor 27.27°/o, and Serang was 27.78°/o.
Perilaku masyarakat dalam pengelolaan dan pemanfaatan hutan rakyat : studi kasus di desa Kresnowidodo kecamatan Tegineneng kabupaten Pesawaran propinsi Lampung Rommy Qurniati
Jurnal Ilmu Pertanian Indonesia Vol. 15 No. 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Degradation in production forest in lampung Province was high. Wood crop was cut and changed with agriculture crop and also the settlement. Cultivation of wood in land that own by society with private forest (hutan rakyat) pattern in Kresnowidodo Village become one of solution for rare of this wood. According to that, need to know how behavior socialize in management and wood exploiting from private forest in Kresnowidodo Village in order to overcoming the rare of wood and development of private forestspecially in lampung Province. location have been selected in purposive method with consideration that Kresnowidodo Village have 227 ha private forest. Farmer population that have private forest are 315 family. According to Slofin method obtained 39 family as sample. The method used descriptive qualitative analysis. Community behavior in management and exploiting of private forest analysed from three aspect that are produce aspect, processing aspect and marketing aspect. The result obtained that wood production in private forest still be conducted traditionally. Farmers did not conducted management intensively yet since assuming private forest land still be fertile enough to support growth of wood crop. The exploitation of private forest still as peripheral income and used as saving or reserve of farmer income. The existance of wood industry in Kresnowidodo Village become one of farmer motivation to develop private forest. Certainty in wood production from private forest supported with efficient wood market in the village perhaps have supported for development and continuation of private forest in Kresnowidodo Village.
Pasta Pati Jagung Putih Waxy dan Non-Waxy yang Dimodifikasi Secara Oksidasi dan Asetilasi-Oksidasi Nur Aini; Purwiyatno Hariyadi
Jurnal Ilmu Pertanian Indonesia Vol. 12 No. 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Modification of corn starch will give different effects depending on the corn variety. Gel forming capacity increased with increase in concentration of the samples and least gel concentration was maximal in higher amylose starch. Initial pasting temperature of native starch reduced from following oxidation and acetylation. Among the samples, the highest pasting temperature was recorded in native and values for peak viscosity during heating. The modified starch has better stability than native starch and lower tendency for syneresis and improve the freeze thaw stability.Keywords: white corn starch, oxidation, acetylation-oxidation, corn variety
Faktor-Faktor Yang Mempengaruhi Nilai Tunggakan Kredit pada Program Pemberdayaan Ekonomi Masyarakat Pesisir di Kabupaten Indramayu Alia Asmara
Jurnal Ilmu Pertanian Indonesia Vol. 12 No. 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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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
Analisis Efektivitas Program Raskin dan Ketahanan Pangan Rumah Tangga Miskin “Kasus Di Propinsi Jawa Barat Tahun 2010” Alla Asmara; Sri Hartoyo; Rina Oktaviani; Lukytawati Anggraeni
Jurnal Ilmu Pertanian Indonesia Vol. 15 No. 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Realizing that there are still alot of poor households (RTM) in Indonesia, the government through various programs and policies continue to improve the food security conditions of poor households, particularly through Raskin. The implementation of Raskinhas been running about ten years. However, the criteria of “Enam Tepat” as indicator of success oof Raskin, has not been fully achieved. The purpose of this study consist of:  Firstly, analyze the effectiveness of the Raskin program in West Java. Secondly,  analyze the condition of the food security of poor households in West Java. The study was designed as a research survey with the simple random sampling method.The results showed that the actual Raskin recipients exceed the amount of targeted households (RTS) with deviations ranging from 17.33 to 164.23 percent. Deviation in the quantity indicator ranged from 14.77 to 62.15 per cent. While, the price deviations ranged from 14.26 to 40.19 per cent. For timely indicators of Raskinis generally achieved. Analysis on food security conditions of poor households showthat the poor households that categorized as vulnerable on food is approximately 6.7 percent to 34.5 percent.

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