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Karakteristik tanah ordo ultisol di perkebunan kelapa sawit PT. Perkebunan Nusantara I (Persero) Cot Girek Kabupaten Aceh Utara Andalusia, Bunga; Zainabun, Zainabun; Arabia, Teti
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Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Ultisols have morphological characteristics, physical and chemical soil. It is necessary to study the characteristics of Ultisol in PT. Perkebunan Nusantara I (Persero) Cot Girek North Aceh Regency. The methode used descriptive quantitative survey methods. The study states that the structure of the soil in the study area tend to belong to the group of angular blocky. Soil consistency ranged from slightly tacky to the plastic. The texture of the clay causes consistency becomes more closely at the upper horizon and not easily destroyed (plastic) on the bottom horizon. Relatively high value of bulk density (1.31 g cm3-1 to 1.48 g cm3-1), permeability is slow (0.25 cm hr-1 to 0.51 cm hr-1), so that the soil porosity is less good. Land in the study area react sour, the cation exchanged capacityÂ value is low to moderate (11 me 100g-1 to 37 me 100g-1). N-total classified as moderate to very low (0.05% to 0.30%), available P was low (0.73 ppm to 4.08 ppm), the contents of Al and H is high enough so that the low fertility rate.

Karakteristik Tanah Salin Krueng Raya Kecamatan Mesjid Raya Kabupaten Aceh Besar Teti Arabia; Zainabun Zainabun; Ida Royani
Jurnal Manajemen Sumberdaya Lahan Vol 1, No 1 (2012): Volume 1, Nomor 1, Juni 2012
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstrak. Penelitian ini bertujuan untuk mengetahui karakteristik tanah salin di Kemukiman Krueng Raya. Penelitian ini dilakukan pada tiga pedon yang dipilih berdasarkan perbedaan vegetasi yang tumbuh di atasnya (bakau, nipah dan semak halophyta). Di lapangan diamati sifat-sifat morfologinya, kemudian diambil bahan tanahnya dari setiap horison dan dianalisis sifat fisika, kimia, dan mineraloginya di laboratorium. Pada semua horison di pedon IR1 bertekstur liat, pada pedon IR2 tekstur di horison Bt lempung liat berpasir, sedangkan pada pedon IR3 horison Bt1 bertekstur lempung. Reaksi tanah (pH) berbanding lurus dengan kejenuhan basa (KB), pada semua horison mempunyai nilai yang tinggi KB dan pH kecuali pada pedon IR1 horison AB. Selain itu mempunyai pH, daya hantar listrik (DHL), nisbah Na terjerap (SAR) yang tinggi yang merupakan penciri daerah salin. Asam-asam dapat ditukar hanya terdapat pada pedon IR1 horison BA yaitu berupa kation hidrogen 1,76 cmol(+) kg-1 dan alumnium 1,44 cmol(+) kg_1, disebabkan horison tersebut pH-nya rendah (5.00) dan mengandung liat masam. Semua pedon mempunyai mineral mudah lapuk yang tinggi ( 10%), Hal ini menunjukkan tanah belum tua dan kesuburannya cukup baik, namun terdapat faktor-faktor penghambat yaitu kejenuhan Na, SAR, dan DHL yang tinggi. Setiap pedon didominasi oleh mineral smektit serta sedikit kaolinit, illit, kuarsa, dan klorit.Characteristics of Krueng Raya Salin soils at Subdistrict Mesjid Raya Aceh BesarAbstract. This research aimed to investigate the characteristics of saline soil in Kemukiman Krueng Raya. This research was conducted in three selected pedon based on difference of vegetation which is growing on it (mangroves, palm and halophyta shrub). Morphology properties observed in the field, then the soil material taken from each horizon and soil physical, chemical, and mineralogy were analyzed in the laboratory. In all IR1 pedon of horizons has clay texture, on IR2 pedon of Bt horizon has sandy clay loam texture, whereas on IR3 pedon of Bt1 horizon has clay texture. Soil reaction (pH) is proportional to the base saturation (BS), in all of horizons have high BS and pH values except on IR1 pedon of AB horizon. Besides, it has high value of pH, electrical conductivity (EC), and the sodium adsorption ratio (SAR), which is the identifier of saline areas. The exchangeable acids only on pedon IR1 of BA horizon that is hydrogen cation 1.76 cmol (+) kg-1 and aluminium 1.44 cmol (+) kg-1, because of the horizon is low of pH (5.00) and contain of acid clay. All of pedon has high easily weathered minerals ( 10%). This is indicate that the soil has not aged yet and its fertility still quite well, but there are limiting factors that is high of Na saturation, SAR, and DHL. Each pedon dominated by smectite minerals and a little of kaolinite, illite, quartz, and chlorite.

Aplikasi Pupuk Guano dan Mulsa Organik Serta Pengaturan Jarak Tanam Untuk Meningkatkan Kualitas Tanah dan Hasil Tanaman Bawang Merah (Allium ascalonicum L.) Mulyono Mulyono; Teti Arabia; Syakur Syakur
Jurnal Manajemen Sumberdaya Lahan Vol 3, No 1 (2014): Volume 3, Nomor 1, April 2014
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstrac: The addition of organic matter into soil improves the chemical, physical and biological properties of soil and increases crop yields. The study wasaimed to determine the effect of guano fertilizer and organic mulch and plant spacing on soil quality and yield of onion (Alliumascalonocum L.). This research was conducted in the field by using split-split plot design consisted of three factors: the main plot factor is the spacing (15 x 15 cm and 20 x 20 cm), the sub-plot factor is organic mulch (skin of coffee bean mulch and Tithonia mulch), and the sub-sub plot factor is guano fertilizer (no fertilizer, 5 ton ha-1 and 10 ton ha-1). The results showed that the application of guano fertilizer, organic mulch and plant spacing had significant effect on soil chemical properties indicated by the increase of C-organic, soil pH, total N, available P and the total of soil microorganisms as well as the growth and yield of onion. The interaction effect was also found onsoil chemical properties and growth and yield of onion due to the application of guano, organic mulch and plant spacing. The combination application of guano fertilizer, organic mulch and spacing that provided the best effect on soil chemical properties acquired at plant spacing of 20 cm x 20 cm, skin of coffee bean mulch and fertilizer guano of 10 ton-1. The highest onion yield was obtained in the combination application of plant spacing of 15 cm x 15 cm, Tithonia mulch and guano of 10 ton-1. Abstrak: Penambahan bahan organik ke dalam tanah dapat memperbaiki sifat kimia, fisika dan biologi tanah serta dapat meningkatkan hasil tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh pupuk guano dan mulsa organik serta jarak tanam terhadap kualitas tanah dan hasil bawang merah (Allium ascalonicum L.). Penelitian ini dilakukan di lapangan dengan menggunakan rancangan petak terpisah terbagi dengan pola faktorial yang terdiri dari 3 faktor yaitu: faktor petak utama adalah jarak tanam (15 x 15 cm dan 20 x 20 cm), faktor anak petak adalah mulsa organik (mulsa kulit kopi dan mulsa Tithonia), faktor anak-anak petak adalah pupuk Guano (tanpa pupuk guano, 5 ton ha-1 dan 10 ton ha-1). Hasil penelitian menunjukkan bahwa pupuk guano, mulsa organik dan pengaturan jarak tanam berpengaruh terhadap beberapa sifat kimia tanah yang ditunjukkan oleh meningkatnya C-organik, pH tanah, N-total, P-tersedia dan total mikroorganisme tanah serta pertumbuhan dan hasil tanaman bawang merah. Pemberian pupuk guano, mulsa organik dan pengaturan jarak tanam memberikan pengaruh interaksi terhadap beberapa sifat kimia tanah serta pertumbuhan dan hasil bawang merah. Kombinasi pemberian pupuk guano, mulsa organik dan pengaturan jarak tanam yang memberikan pengaruh terbaik terhadap sifat kimia tanah diperoleh pada pemberian jarak tanam 20 cm x 20 cm, mulsa kulit kopi dan pupuk guano 10 ton- 1 dan hasil bawang merah diperoleh pada pemberian jarak tanam 15 cm x 15 cm, mulsa tithonia dan pupuk guano 10 ton-1.

Pengaruh Kompos dan Dolomit Terhadap Beberapa Sifat Kimia Ultisol dan Hasil Kedelai (Glycine max l. Merril) pada Lahan Berteras Dedi Syaputra; M. Rusli Alibasyah; Teti Arabia
Jurnal Manajemen Sumberdaya Lahan Vol 4, No 1 (2015): Volume 4, Nomor 1, April 2015
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstract: This study aimed to assess the effect of compost and dolomite to some chemical properties of Ultisol and soybean yields on terraced land. The study used a randomized block design (RBD), which consists of two factors, namely the provision of compost and dolomite. The parameters observed were two aspects, namely: (1) soil chemical properties, and (2) soybean yields. The results of the study composting as well as the very significant effect on the increase in P-available, real effect on C-organic, N-total, cation exchange capacity (CEC), and base saturation (BS). Giving dolomite as well as significant effect on total N, CEC, BS, did not significantly affect the C-organic. Interactions giving compost and dolomite very significant effect on the increase in soil pH H2O. Giving compost very significant effect, productive branches, empty pods, pod contains, seed weight per plant, yield per hectare, and a significant effect on weight 100 grains. Giving dolomite very significant effect on the productive branches, empty pods, pod contains, yield per hectare, seed weight per plant and weight of 100 seeds. Abstrak: Penelitian ini bertujuan untuk mengkaji pengaruh kompos dan dolomit terhadap beberapa sifat kimia Ultisol dan hasil kedelai pada lahan berteras. Penelitian menggunakan rancangan acak kelompok (RAK), yang terdiri dari 2 faktor, yaitu pemberian kompos dan dolomit. Parameter yang diamati meliputi dua aspek yaitu : (1) sifat kimia tanah, dan (2) hasil kedelai. Hasil penelitian pemberian kompos berpengaruh sangat nyata terhadap peningkatan P-tersedia, berpengaruh nyata terhadap C-organik, N-total, kapasitas tukar kation (KTK), dan kejenuhan basa (KB). Pemberian dolomit berpengaruh nyata terhadap N-total, KTK, KB, dan tidak berpengaruh nyata terhadap C-organik. Interaksi pemberian kompos dan dolomit berpengaruh sangat nyata terhadap peningkatan pH H2O tanah. Pemberian kompos berpengaruh sangat nyata terhadap cabang produktif, polong hampa, polong berisi, berat biji per tanaman, hasil per hektar, dan berat 100 biji. Pemberian dolomit berpengaruh sangat nyata terhadap cabang produktif, polong hampa, polong berisi, hasil per hektar, berat biji per tanaman dan berat 100 biji.

Aplikasi Pupuk Guano dan Mulsa Organik Serta Pengaturan Jarak Tanam Untuk Meningkatkan Kualitas Tanah dan Hasil Tanaman Bawang Merah (Allium ascalonicum L.) Mulyono Mulyono; Teti Arabia; Syakur Syakur
Jurnal Manajemen Sumberdaya Lahan Vol 3, No 1 (2014): Volume 3, Nomor 1, April 2014
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstrac: The addition of organic matter into soil improves the chemical, physical and biological properties of soil and increases crop yields. The study wasaimed to determine the effect of guano fertilizer and organic mulch and plant spacing on soil quality and yield of onion (Alliumascalonocum L.). This research was conducted in the field by using split-split plot design consisted of three factors: the main plot factor is the spacing (15 x 15 cm and 20 x 20 cm), the sub-plot factor is organic mulch (skin of coffee bean mulch and Tithonia mulch), and the sub-sub plot factor is guano fertilizer (no fertilizer, 5 ton ha-1 and 10 ton ha-1). The results showed that the application of guano fertilizer, organic mulch and plant spacing had significant effect on soil chemical properties indicated by the increase of C-organic, soil pH, total N, available P and the total of soil microorganisms as well as the growth and yield of onion. The interaction effect was also found onsoil chemical properties and growth and yield of onion due to the application of guano, organic mulch and plant spacing. The combination application of guano fertilizer, organic mulch and spacing that provided the best effect on soil chemical properties acquired at plant spacing of 20 cm x 20 cm, skin of coffee bean mulch and fertilizer guano of 10 ton-1. The highest onion yield was obtained in the combination application of plant spacing of 15 cm x 15 cm, Tithonia mulch and guano of 10 ton-1. Abstrak: Penambahan bahan organik ke dalam tanah dapat memperbaiki sifat kimia, fisika dan biologi tanah serta dapat meningkatkan hasil tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh pupuk guano dan mulsa organik serta jarak tanam terhadap kualitas tanah dan hasil bawang merah (Allium ascalonicum L.). Penelitian ini dilakukan di lapangan dengan menggunakan rancangan petak terpisah terbagi dengan pola faktorial yang terdiri dari 3 faktor yaitu: faktor petak utama adalah jarak tanam (15 x 15 cm dan 20 x 20 cm), faktor anak petak adalah mulsa organik (mulsa kulit kopi dan mulsa Tithonia), faktor anak-anak petak adalah pupuk Guano (tanpa pupuk guano, 5 ton ha-1 dan 10 ton ha-1). Hasil penelitian menunjukkan bahwa pupuk guano, mulsa organik dan pengaturan jarak tanam berpengaruh terhadap beberapa sifat kimia tanah yang ditunjukkan oleh meningkatnya C-organik, pH tanah, N-total, P-tersedia dan total mikroorganisme tanah serta pertumbuhan dan hasil tanaman bawang merah. Pemberian pupuk guano, mulsa organik dan pengaturan jarak tanam memberikan pengaruh interaksi terhadap beberapa sifat kimia tanah serta pertumbuhan dan hasil bawang merah. Kombinasi pemberian pupuk guano, mulsa organik dan pengaturan jarak tanam yang memberikan pengaruh terbaik terhadap sifat kimia tanah diperoleh pada pemberian jarak tanam 20 cm x 20 cm, mulsa kulit kopi dan pupuk guano 10 ton- 1 dan hasil bawang merah diperoleh pada pemberian jarak tanam 15 cm x 15 cm, mulsa tithonia dan pupuk guano 10 ton-1.

Effects of AMF and Animal Manure on Improve the Quality of Land, Production and Quality of Pennisetum purpureum Schum Khalidin Khalidin; Teti Arabia; Fikrinda Fikrinda
Jurnal Manajemen Sumberdaya Lahan Vol 1, No 2 (2012): Volume 1, Nomor 2, Desember 2012
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstract: The objective of research was to study the effects of arbuscular mycorrhiza fungi (AMF) and animal manure on improve the quality of land, production and quality of elephant grass. The method used was prepared by field experiments using factorial randomized block design consist of two factors: AMF and animal manure with three replications. AMF consists of two standards, ie, without using the AMF and AMF 10 g hole-1 while the four-stage animal manure factor is 0, 15, 30, and 45 tons ha-1. The results showed that the best interaction to crude protein and crude fiber grass cutting age of 50 days after planting contained in the AMF treatment without a dose of 15 tons ha-1 of animal manure. The treatment of animal manure dose of 45 tons ha-1 produced an elephant grass was higher than the treatment dose of 30 tons ha-1, 15 tons ha-1, and without animal manure.Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh fungi mikoriza arbuskular (FMA) dan pupuk kandang terhadap produksi dan kualitas rumput gajah. Metode yang digunakan adalah percobaan lapangan yang disusun dengan menggunakan rancangan acak kelompok pola faktorial yang terdiri dari dua faktor yaitu FMA dan pupuk kandang dengan tiga ulangan. Perlakuan FMA terdiri dari dua taraf yaitu tanpa FMA dan menggunakan FMA 10 g lubang-1, sedangkan faktor pupuk kandang empat taraf yaitu 0, 15, 30, dan 45 ton ha-1. Hasil penelitian menunjukkan bahwa interaksi terbaik terhadap protein kasar dan serat kasar rumput gajah umur pemotongan 50 hari setelah tanam terdapat pada perlakuan tanpa FMA dengan dosis pupuk kandang 15 ton ha-1. Perlakuan dosis pupuk kandang 45 ton ha-1 menghasilkan produksi rumput gajah lebih tinggi dibandingkan dengan perlakuan dosis 30 ton ha-1, 15 ton ha-1, dan tanpa pupuk kandang.

Pengaruh Lereng dan Pupuk Organik Terhadap Kehilangan Hara Pada Areal Tanaman Kentang (Solanum tuberosum L.) di Kecamatan Atu Lintang Kabupaten Aceh Tengah Uswatun Hasanah; M. Rusli Alibasyah; Teti Arabia
Jurnal Manajemen Sumberdaya Lahan Vol 3, No 2 (2014): Volume 3, Nomor 2, Oktober 2014
Publisher : Program Studi Magister Konservasi Sumberdaya Lahan, Pascasarjana, Universitas Syiah Kuala

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Abstract : This study was conducted in Atu Lintang Sub-district Aceh Tengah Regency. The purpose of this study was to investigate the effect of slope and organic fertilizer application on nutrient lossesin potatoes plant area. The measurement of nutrient losses was conducted in slope 8 – 12% and 12 – 16% and the application organic fertilizer by using compost, coffee bean skin compost and non-fertilizer. The treatments were placed in the standard erosion plots. The result of the study showed that in slope of 8 – 12%, the nutrients losses on compost treatment were total organic C 517,67 kg ha-1, total N 39,79 kg ha-1, available P 0,0051 kg ha-1, and exchangeable K 0,710 kg ha-1, the nutrients losses on coffee bean skin compost treatment were total organic C 621,43 kg ha-1, total N 44,40 kg ha-1, available P 0,0082 kg ha-1, and exchangeable K 1,094 kg ha-1, and the nutrients losses onnon-fertilizerwere total organic C 653,63 kg ha-1, total N 48,23 kg ha-1, available P 0,0039 kg ha-1, and exchangeable K 0,852 kg ha-1. In the 12 – 16% slope,the nutrients losses on compost treatment were total organic C 678,05 kg ha-1, total N 51,55 kg ha-1, available P 0,0174 kg ha-1, and exchangeable K 1,736 kg ha-1, the nutrients losses oncoffee bean skin compost treatment were total organic C 798,92 kg ha-1, total N 60,21 kg ha-1, available P 0,0201 kg ha-1, and exchangeable K 2,275 kg ha-1, and the nutrients losses onnon-fertilizerwere total organic C 886,95 kg ha-1, total N 67,11 kg ha-1, available P 0,0146 kg ha-1, and exchangeable K 1,857 kg ha-1. Abstrak : Penelitian ini dilakukan di Balai Benih Induk (BBI) Hortikultura Kecamatan Atu Lintang Kabupaten Aceh Tengah. Tujuan dari penelitian ini adalah untuk melihat pengaruh kelerengan dan pemberian pupuk organik terhadap kehilangan hara pada sareal tanaman kentang. Pengukuran kehilangan hara dilakukan pada kelerengan 8 - 12 % dan 12 – 16 % dan pemberian pupuk organik dengan menggunakan pupuk kompos, kompos kulit merah kopi dan tanpa pupuk dengan membuat petak baku Wischmeier. Hasil penelitian menunjukkan bahwa pada kelerengan 8 – 12 % kehilangan hara pada perlakuan pupuk kompos yaitu C organik 517,67 kg ha-1, N total 39,79 kg ha-1, P tersedia 0,0051 kg ha-1, dan K dapat dipertukarkan 0,710 kg ha-1, kehilangan hara pada perlakuan kompos kulit merah kopi yaitu C organik sebesar 621,43 kg ha-1, N total 44,40 kg ha-1, P tersedia 0,0082 kg ha-1, dan K dapat dipertukarkan 1,094 kg ha-1 dan kehilangan hara pada perlakuan tanpa pupuk adalah C organik 653,63 kg ha-1, N total 48,23 kg ha-1, P tersedia 0,0039 dan K dapat dipertukarkan 0,852 kg ha-1. Pada kelerengan 12 – 16 % kehilangan hara pada perlakuan pupuk kompos yaitu C organik 678,05 kg ha-1, N total 51,55 kg ha-1, P tersedia 0,0174 kg ha-1, dan K dapat dipertukarkan 1,736 kg ha-1, kehilangan hara pada perlakuan kompos kulit merah kopi yaitu C organik sebesar 798,92 kg ha-1, N total 60,21 kg ha-1, P tersedia 0,0201 kg ha-1, dan K dapat dipertukarkan 2,275 kg ha-1 dan kehilangan hara pada perlakuan tanpa pupuk adalah C organik 886,95 kg ha-1, N total 67,11 kg ha-1, P tersedia 0,0146 dan K dapat dipertukarkan 1,857 kg ha-1.

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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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.

EKSPLORASI FUNGI MIKORIZA ARBUSKULA PADA HISTOSOL DI PERKEBUNAN KELAPA SAWIT PT. NAFASINDO KABUPATEN ACEH SINGKIL DENGAN KULTUR TRAPPING Alexander Parlindungan; Teti Arabia; Fikrinda Fikrinda
Jurnal Agrista Vol 22, No 1 (2018): Volume 22 Nomor 1 April 2018
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Eksplorasi fungi mikoriza arbuskula (FMA) dilakukan dengan kultur trapping menggunakan jagung sebagai tanaman inang dan beberapa media pembawa (pasir, biochar, zeolit). Sampel tanah yang digunakan berasal dari rizosfer berbagai umur kelapa sawit (1, 5, dan 10 tahun) dari PT. Nafasindo Aceh Singkil. Jumlah spora FMA terbanyak dijumpai pada rizosfer kelapa sawit umur 10 tahun (33,94) yang berbeda nyata dengan umur 1 tahun (14,94) dan tidak berbeda nyata dengan 5 tahun (21,88), sedangkan berbagai media tidak menunjukkan pengaruh nyata terhadap jumlah spora. Terdapat dua genus FMA yang ditemukan di perkebunan kelapa sawit PT. Nafasindo Kabupaten Aceh Singkil, yaitu Glomus (enam spesies) dan Acaulospora (satu spesies), Glomus merupakan spesies yang dominan. Persentase kolonisasi FMA tidak nyata dipengaruhi oleh umur kelapa sawit dan dan media pembawa pada kultur trapping. Kolonisasi FMA kelapa sawit berumur 1 tahun, 5 tahun, dan 10 tahun tergolong rendah . Seperti halnya umur tanaman, kolonisasi FMA pada berbagai media pembawa tergolong rendah.Exploration of Arbuscular Mycorrhizal Fungi on Histosol at Oil Palm Plantation Of PT. Nafasindo Aceh Singkil District with Trapping CultureExploration of Arbuskular Mychoriza Fungi (AMF) by trapping culture used maize as host plant and some carrier mediums (sand, biochar, zeolite). The soil samples used were derived from the various age rhizosphere of oil palm (1, 5, and 10 years) from PT. Nafasindo Aceh Singkil. The results showed that highest number of FMA spores were found in the 10-year-old palm oil rhizosphere (33.94) which was significantly different from the age of 1 year (14.94) and was not significantly different from 5 years (21.88), while the media showed no significant effect on Number of spores. There were two genera of FMA found in oil palm plantation PT. Nafasindo of Aceh Singkil Regency, namely Glomus (six species) and Acaulospora (one species), Glomus is the dominant genus. The percentage of AMF colonization was not significantly affected by the age of oil palm and carrier media in trapping culture. AMF colonization of oil palm aged 1 year, 5 years, and 10 years was low. As like the age, FMA colonization of various carrier media was low.

Kenampakan Pedologi Tanah Sawah yang Berasal dari Toposekuen Berbahan Induk Volkanik di Daerah Bogor – Jakarta Teti Arabia; Sarwono Hardjowigeno; Sudarsono Sudarsono; Widiatmaka Widiatmaka; Nata Suharta
Jurnal Agrista Vol 13, No 1 (2009): Volume 13 Nomor 1 April 2009
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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(The Pedological Features of Paddy Soils from a Toposequence on Volcanic Parent Materials in the Bogor – Jakarta Area)ABSTRACT. The pedological feature of paddy soils are different from the non paddy cultivated. The aim of the research were: to study the pedofeatures of paddy soils in a toposequence on volcanic materials in the Bogor – Jakarta area; to study the influence of paddy cultivated intensity of pedofeatures. Twelve pedons of different altitude (90 – 650 m above see level) and different paddy cultivated intensity (0/year, 1/year, 2/year) were investigated, each horizons were sampled for laboratory analysis to study the pedofeatures. The result of the research showed that on non paddy cultivated, pedofeature observed at B horizon is indicating rock weathering. On 1x paddy, at tillage layer nodules and hypocoating were found. On 2x paddy, at plow plan layer clay infilling dense complete was found.

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