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Jurnal Agrista
Published by Universitas Syiah Kuala
ISSN : 14103389     EISSN : 25979973     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agrista merupakan salah satu wadah bagi peneliti untuk menyebarluaskan hasil-hasil penelitian di bidang ilmu Agroteknologi, Ilmu Tanah dan Proteksi Tanaman, selain itu Jurnal Agrista juga mencakup di bidang MIPA Biologi serta FKIP Biologi. Jurnal Agrista memuat laporan hasil penelitian atau makalah suntingan dengan topik Agroteknologi, Ilmu Tanah, serta Hama dan Penyakit Tumbuhan dari staf pengajar/peneliti di Fakultas Pertanian, Universitas Syiah Kuala Banda Aceh dan peneliti lainnya yang berasal dari Perguruan Tinggi Negeri dan Swasta serta Balai Penelitian.
Arjuna Subject : -
Articles 8 Documents
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Search results for , issue "Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008" : 8 Documents clear
Koinokulasi Rhizobium dan Bakteri Pelarut Fosfat pada Tanah Mineral Masam untuk Memperbaiki Pertumbuhan Bibit Sengon Deni Alfiati
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Co-Inoculation Rhizobium and Phosphate Solubilizing Bacteria on Acid Mineral Soil to Enhance Seedling Growth of SengonABSTRACT. Study of coinoculation between rhizobium and solubilizing phosphate bacteria was done in greenhouse. The aim of the study to find their effect to seedling growth of sengon in Ultisol and Inceptisol. The study used factorial split plot design and three replication. As a treatment were kind of soil and inoculation of rhizobium and phosphate solubilizing bacteria. As a control was not inoculation, with nitrogen fertilizer and phosphate fertilizer. The result showed that co-inoculation between rhizobium and phosphate solubilizing bacteria could enhance seedling growth of sengon in Ultisol and Inceptisol. As compared between co-inoculation and inoculation with rhizobium or phosphate solubilizing alone, showed that the similar result in Ultisol. While Inceptisol, inoculation with Rhizobium and phosphate solubilizing bacteria better than co-inoculation.
Susunan Horison Tanah Sawah pada Toposekuen Latosol Berbahan Induk Volkanik di Daerah Bogor – Jakarta Teti Arabia; Sarwono Hardjowigeno; Sudarsono Sudarsono; Widiatmaka Widiatmaka; Nata Suharta
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

The Sequence of Horizons of Paddy Soils in a Toposequence of Latosol on Volcanic Parent Materials in the Bogor – Jakarta AreaABSTRACT. The sequence of horizons of paddy soils is different from non paddy cultivated. The aim of the research were: (1) to study the sequence of horizons of paddy soils in a toposequence of Latosol on Volcanic materials in the Bogor – Jakarta Area; (2) to study the sequence of paddy cultivated intensity to sequence of horizons. Twelve pedons of different altitude (90 – 650 m above sea level) and different paddy cultivated intensity (0/year, 1/year, 2/year) were investigated sequence of horizons in the field. The result of the research showed that the horizons sequence, on non paddy cultivated soils consist of: tillage layers and the original soil layers. On 1x paddy/year consist of: plow pan layer, and iron/manganese/nodule Mn illuviation layer. On 2x paddy /year consist of: tillage layer of surface reduction, plow pan layer, Fe/Mn illuviation layer, and reduce subsurface layer.
Laju Tumbuh Tanaman dan Produksi Kentang (Solanum tuberosum L.) Varietas Granola pada Pemberian Pupuk Organik Kascing dan Inokulasi Mikoriza Arbuskular Nurhalisyah Nurhalisyah
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

The Crop Growth Rate and Yield of Potato (Solanum tuberosum L.) of Granola Variety Under Applying Earthworms Castings and Inoculants of Arbuscular MycorrhizaeABSTRACT. This study intends to identify the crop growth rate and yield of potato at the application earthworms castings and inoculants arbuscular mycorrhizae (AM). Using randomized block design with dual factorial. First factor was the application the earthworm castings with four levels of treatment, that are 0, 100, 200, and 300 gram casting per plants-1, respectively. Second was inoculants arbuscular mycorrhizae with four levels too, they are 0, 2.5, 5, and 7.5 gram per plant-1. Application of earthworm castings was conducted three days before planting, while mycorrhizae was performed at the time of cultivation. Crop growth rate increased with augmented age from 38-68 days after planting (dap) and then declined at 78-88 dap. The highest rate (0,0055 gr cm-2 day-1) occurred at the treatment by 300 g plant-1 and inoculants with AM 7.5 g plant-1 at age of 67 dap. The application of the organic fertilizer (earthworm castings) 300 g per plant-1 and AM inoculants 5 g plant-1give the highest productivity.
Evaluasi Kriteria Kesesuaian Lahan Kelapa Sawit di Kebun Baru PT. Perkebunan Nusantara-I, Langsa Abubakar Karim
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Evaluation of Land Suitability Criteria for Oil Palm at Kebun Baru PT. Perkebunan Nusantara-I, LangsaABSTRACT. The obtain land suitability classes in accordance with plant production, the appropriate of land suitability classification from land suitability classification system is required. The aims of this study were: (1) to evaluate the suitability of classification system for land planted with oil palm at Kebun Baru PT. Perkebunan Nusantara I Langsa and (2) to evaluate the relationship between soil characteristics (criteria) and the production of oil palm in the Kebun Baru PT. Perkebunan Nusantara I Langsa. The characteristics observed in the area of land that formed homogenous classes were based on the uniformity of slope, soil type on the rate of oil palm production. From each homogenous area soil samples were taken for analyze of physical and chemical soil properties. The result showed there was none of the system of land suitability classification can be applied directly in Kebun Baru PT. Perkebunan Nusantara I Langsa. A significant correlation was found among the land characteristics and slope was very evident and determined other land characteristics, including the production of oil palm. The oil palm production in Kebun Baru PT. Perkebunan Nusantara-I Langsa was determined by slope, C-organic, P-available, K-exchangeable, Ca-Exchangeable, base saturation, and salinity. The relationship between oil palm production and land characteristics was described as multiple regression: Y = 5,55 – 0,41x1 + 2,77x6 + 0,24x8 + 8,57x9 - 1,96x10 + 0,39x13 – 2,83x14; R2 = 0,93**   x1 = Slope, x6 = C-organic, x8 = P-available, x9 = K-exchangeable, x10 = Ca-exchangeable, x13 = base saturation, x14 = salinity; R = determination value. To achieve the best fit between the classification of land suitability and oil palm production in Kebun Baru PT. Perkebunan Nusantara I Langsa, the modification of land suitability classification system is required.
Karakteristik Morfologi Fase Vegetatif Berbagai Varietas Jeruk Pamelo Pangkep dengan Teknik Sambung Mini Kafrawi Kafrawi; Zahraeni Kumalawati
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Morphology Characteristics of Vegetatif Phase on Several Varieties Pangkep Pummelo (Citrus maxima) with Mini Grafting TechniqueABSTRACT. The main objective of this research was to learning several stump effect to morphology characteristics of vegetatif phase of several varieties pangkep pummelo and to know various stump was compatible to growty support several pummelo pangkep. The project was conducted in green house and laboratory of Politani Pangkep, South Sulawesi from April to November 2007. The experiment was design in randomized block design consisted of two factors. Firstly, several entres pummelo i.e. pangkep merah, pangkep putih and sigula-gula. The second factor was several stump various pummelo i.e. swingle citrumelo, pangkep merah, pangkep putih and si gula-gula. The result showed pangkep merah pummelo have better vigor was use entres or stump. All growth variants show pangkep merah pummelo induced statistically significant effect (caulis diameter, bud length bud, sum bud, leaf area, root length, moisture content of root and tree).
Perubahan Beberapa Sifat Fisika dan Hasil Kacang Tanah akibat Pemberian Bahan Organik dan Pupuk Fosfat Helmi Helmi
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Changes of Physical Properties of Entisols and Yield of Peanut Affected by Organic Matter and Phosphate FertilizerABSTRACT. A plot experiment was conducted in the field which objective was to study the effect of organic matter and phosphate fertilizer application on the change of physical properties of entisols and yield of peanut. Experimental treatment were arranged in the block random factorial design. There kinds of organic matter were animal manure, rice straw and peanut straw. The first factor were 0 ton ha-1 of organic matter, 20 ton ha-1 of animal manure, 20 ton ha-1 of rice straw and 20 ton ha-1 of peanut straw, the other factor was SP-36 dosage; there were 0, 60, and 120 kg ha-1. Each treatment was replicated three times. The result showed that organic matter and SP-36 application influenced to physical properties of Entisols i.e. decreased soil bulk density, increased total of soil porosity, available water porosity, soil aggregate stability index, soil aggregation and dry legume weight ha-1. The applications of 20 ton rice straw ha-1 was the optimum dosage on the application of 108.50 kg of SP-36 ha-1, with the maximum dry legume yield of 3.02 ton ha-1.
Aplikasi Herbisida Glifosat dan Paraquat pada Berbagai Dosis serta Pengaruhnya Terhadap Pertumbuhan Biduri (Calotropis Gigantean R. Br) Gina Erida; Tjut Chamzurni
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Application of Different Dosage of Glyphosate and Paraquat Herbicides and Their Effect on the Growth of Milky Weed (Calotropis gigantean R. Br)ABSTRACT. The study on application the different dosages of glyphosate and paraquat herbicides and their effect on the growth milky weed (Calotropis gigantean) has been conducted at Experimental station, Faculty of Agriculture, Syiah Kuala University, Darussalam, Banda Aceh. The treatment were arranged in a completely randomized bloc design (CRD) manner with two factors. The first factor was the dosages of herbicides which were 0 kg a.i/ha, 0,4 kg a.i/ha, 0,8 kg a.i/ha, and 1,2 kg a.i/ha. The second one was the different herbicides which were glyphosate and paraquat. The result showed that the dosages of the 0,8 kg a.i/ha significantly increased the percentage of milky weed control, suppressed the height of milky weed 21 days of application (DAA), reduced the diameter of milky weed stem and decreased the dry weight of milky weed. The type of the herbicides and different dosages used interactively affected the percentage of milky weed control and the diameter of milky weed stem on 21 days of application (DAA). The paraquat herbicide applied with dosage of 1,2 kg a.i/ha significantly increased the percentage of milky weed control and suppressed the diameter of milky weed stem.
Pengembangan Metode Prediksi Produksi Air DAS untuk Sungai-sungai Utama di Aceh Husnan Husnan; Hidayat Pawitan; Gatot Irianto; Kukuh Murti Laksono; Hairul Basri
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Developing Prediction Method of Watershed for Main Rivers in AcehABSTRACT. The conversion of rural land to urban land usually increases erosion, discharge and volume of storm runoff in watershed. It also causes other problem that effect soil and water. An urban or urbanizing watershed is one in which impervious surface cover or will soon cover a considerable area. Impervious surface includes roads, side walk, parking lots and building. Natural flow paths in the watershed may be replaced or supplemented by paved gutters, storm sewers or other elements of artificial drainage. Hydrologic studies to determine runoff and peak discharge should ideally be base on long-term stationary stream flow records for the area, such records are seldom available for small drainage areas. Even were they are available, accurate statistical analysis of them is usually impossible because of the conversion of land to urban uses during period of record. It therefore is necessary to estimate peak discharge with hydrologic models based on measurable watershed characteristics. Only through understanding of these characteristic and experience in using these models can be make sound judgments on how to alter model parameter to reflect changing watershed conditions.

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