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Populasi dan Aktivitas Mikroorganisme Rhizosfer Kedelai pada Entisol Akibat Pemberian Bahan Organik dan Pupuk Hayati Yusnizar Yusnizar; Hifnalisa Hifnalisa; Fikrinda Fikrinda
Jurnal Agrista Vol 10, No 2 (2006): Volume 10 Nomor 2 Agustus 2006
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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The Microorganism Population and Activity in the Rhizosphere of Soybean on Entisol caused by Some Organic Matter and BiofertilizerABSTRACT. The entisol productivity can be increased by using the organic matter as the organic fertilizer for example the waste oil palm (especially the empty fruit bunches of the oil palm) and the manure. Beside this, the Entisol productivity can be increased with used the biofertilizer for example Rhiphosant. Using the organic fertilizer and the biofertilizer also effect the microorganism population and activity in the rhizosphere. The objective of this research as to evaluate the microbial population and activity in the rhizosphere of the soybean as affected the organic matter and the biofertilizer on Entisol. This research was set up according to Factorial Randomized Block Design, there were the organic matter and the biofertilizer. Kind of the organic matter no the organic matter. the was oil palm, the manure, and the was oil palm + manures. Kind of the biofertilizer were without the biofertilizer and with the. There were 8 trial combinations with 3 replications so there were 24 experimental units. The parameters observed were the microorganism population and activity at 45 Days After Planting (DAP); The population of the total microorganism, bacteria, fungi, phosphate solubilizing microorganisms, rhizobium, and microorganism activity. Result of this study show that the first and the second factor were not significant to all parameters. Interaction between the organic matter with the biofertilizer only effected significantly to the fungi population.

Kajian Awal Varietas Kopi Arabika Berdasarkan Ketinggian Tempat di Dataran Tinggi Gayo Hifnalisa Hifnalisa; Abubakar Karim
Jurnal Agrista 2008: Edisi Khusus Nomor 1 November 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Early Study on Arabica Coffee Varieties Base on Altitude Position on Gayo Highland AreaABSTRACT. Farmer cultivated mixed-varieties of arabica coffee in an area. As result no specific tasted for specific variety found. This result aims to observe the best coffee to be recommended for various altitude cultivation. There are nine altitude variations, 100 m interval from 700 to 1600 m above sea level (asl). For each internal altitude, coated-red coffee been harvested at farmers coffee farms at almost the same management and growth. The variables of arabica coffee bean quality physically observed were coated-red raw bean, coffee beans, coffee quality , beans passed on various filters, bean shape and tasted. The result showed that arabica coffee bean quality physically is getting better till 1400 m asl and then tends to decrease the quality till 1600 m asl as shown in export quality percentages, no passed at 7.50 mm filter, the percentage of normal beans, and tasted scores. However for coated-red raw asl. In contrast, floating coated-bean, floating bean and normal beans is decrease. Catimor Jaluk Variety of coffee arabica is suitable for all altitudes observed, followed by arabusta, Lini-S, Bergendal, and USDA. To avoid the dissimilarity of specific taste to highland arabica coffee, the varieties could be extended at different areas even though the same altitude.

Inokulasi Fungi Mikoriza Arbuskular dan Pemupukan Fosfor pada Padi Gogo (Oryza sativa L.) Hifnalisa Hifnalisa
Jurnal Agrista Vol 13, No 1 (2009): Volume 13 Nomor 1 April 2009
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Inoculation of Mycorrhiza Arbuscular Fungi and Fertilization of Phosphorus on Dry Land Rice (Oryza sativa L.)ABSTRACT. The experiment was conducted in Banda Aceh since May to July 2007. The objective of study were to study the effect of mycorrhiza arbuscular fungi and phosphorus fertilization dosage on yield of dry land rice. The study was arranged in factorial randomized completely block design with two factorial. The first factor is inoculation of mycorrhiza arbuscular, fungi, namely: without inoculation (Io), inoculation with Entrophospora sp. (I1), and Inoculation with Acaulospora sp. (I2). The second factor is fertilization of phosphorus, namely: 0 g.pot-1 (Po), 3,75 g.pot-1 (P1), 7,50 g.pot-1 (P2), 11,25 g.pot-1 (P3). The result showed that inoculation of mycorrhiza arbuscular fungi increased fresh and dry weight of root, fresh and dry weight of shoot, number of tiller, 100 seed weight, number of tassel. The best treatment was found on inoculation of Entrospora sp. and fertilization of 11,25 g.pot-1.

Populasi Mikroorganisme pada Tanah yang Dicemari Oli Bekas dan Usaha Perbaikannya Abubakar Karim; Hifnalisa Hifnalisa; Iswandi Anas
Jurnal Agrista Vol 1, No 1 (1997): Volume 1 Nomor 1 April 1997
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstrak.

Penilaian Sifat Fisik dan Kimia Gambut Teunom Aceh Barat Yardha Yardha; Adli Yusuf; Hifnalisa Hifnalisa
Jurnal Agrista Vol 2, No 1 (1998): Volume 2 Nomor 1 April 1998
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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ABSTRAK.

Status Kesuburan Tanah Andisol Kebun Kopi Rakyat di Aceh Tengah Adli Yusuf; Yardha Yardha; Hifnalisa Hifnalisa
Jurnal Agrista Vol 2, No 1 (1998): Volume 2 Nomor 1 April 1998
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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ABSTRAK.

Land Arrangement for Citronella (Cymbopogon Nardus) and Arabica Coffee in the Cultivation Area in Gayo Lues District, Aceh Province Indonesia: A Land Suitability Approach Abubakar Karim; Sugianto Sugianto; Yulia Dewi Fazlina; Muhammad Rusdi; Manfarizah Manfarizah; Hifnalisa Hifnalisa
Aceh International Journal of Science and Technology Vol 9, No 3 (2020): December 2020
Publisher : Graduate Program of Syiah Kuala University

Gayo Lues District is known as Citronella and Arabica coffee producer in Aceh province, Indonesia. This paper aims to manage Citronella and Arabica coffee's land arrangement in the Gayo Lues District's cultivated area. This implementation is aimed at maintaining the peculiarities of citronella products and Arabica coffee. Thus, the two commodities must be separated in terms of allocated sites. The altitude for the area is 200-2,000 meters above sea level, consisting of ten classes, and the type of soils are Entisols, Oxisols, Inceptisols, and Ultisols. The area's slope between 0- to 40% (4 classes) was used to delineate the land units. There are 49 land units observed within the cultivated area of 160,017.17 ha. The guidelines for land suitability classification by the Ministry of Agriculture for Citronella and Center for Coffee and Cocoa Research, Jember for Arabica coffee were utilized. The results showed that 58,275.5 hectares of land were suitable for citronella, and 13,765.75 ha has been planted. The actual land suitability of citronella inside the area of 58,275.5 ha is suitable (S2 class) and marginally suitable (S3-class) and not suitable (N-class) with limiting factors are temperature, water availability, erosion hazard, and nutrient retention. This land suitability can be improved by providing inputs to increase the level of suitability with temperature, water availability, and erosion hazard (slope) limiting factors. Also, 48,765.3 hectares can be developed for Arabica coffee, and 4,653.5 ha has been planted. The actual land suitability for Arabica coffee is Suitable, Marginal Suitable, and Not Suitable, limiting the soil's physical properties (adequate soil depth), slope, and chemical properties of the soil. Once repaired, the land's suitability becomes Suitable (S1-class) (without limiting factor), Suitable, and marginal suitable with the slope as a limiting factor. There is an area of 44,509.75 hectares of land at 200-1,400 m above sea level within the cultivation area developed with a Citronella. There is an area of 44,111.8 ha at the height of 800-2,000 m above sea level, potentially for Arabica coffee.

Teknologi Ameliorasi dan Pemupukan Tanah Suboptimal serta Hubungannya dengan Serapan Hara, Efisiensi Pemupukan dan Hasil Padi Galur Sikuneng Sayed Al Qaby Akbar; Hifnalisa Hifnalisa; Muyassir Muyassir
Jurnal Ilmiah Mahasiswa Pertanian Vol 5, No 2 (2020): Mei 2020
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Abstrak. Tanah suboptimal merupakan lahan yang telah mengalami degradasi atau lahan yang mempunyai tingkat kesuburan yang rendah dan tidak dapat mendukung pertumbuhan tanaman secara optimal. Penelitian ini bertujuan untuk mendapatkan bahan amelioran dan dosis pupuk yang tepat terhadap serapan hara, efisiensi pemupukan dan hasil padi galur sikuneng. Penelitian ini menggunakan metode eksperimen dimana perlakuan disusun dalam bentuk Rancangan Acak Kelompok pola Faktorial dan diulang sebanyak 3 kali. Faktor pertama bahan Amelioran yaitu Gipsum, Biochar dan PIM organik dan faktor kedua dosis pupuk Urea, SP36 dan KCl. Hasil penelitian yang didapat bahan amelioran PIM organik dan biochar dapat meningkatkan serapan hara N dan efisiensi pemupukan hara K padi galur Sikuneng sedangkan perlakuan pemupukan N, P dan K dengan dosis Urea 225 Kg/ha, SP-36 150 Kg/ha dan KCl 150 Kg/ha dapat meningkatkan serapan hara, efisiensi pemupukan dan hasil padi galur Sikuneng, tetapi tidak terdapat interaksi antara amelioran dan pemupukan terhadap serapan hara, efisiensi pemupukan dan hasil tanaman padi galur Sikuneng Amelioration Technology and Suboptimal Soil Fertilization and Its Relationship with Nutrient Uptake, Fertilization Efficiency and Yield of Sikuneng Strain RiceAbstract. Land suboptimal an already degraded land or land that has low fertility levels and can not support an optimal plant growth, This study aimed to obtain ameliorant materials and fertilizers is appropriate to the nutrient uptake, fertilizer efficiency and yield of rice strains Sikuneng. This study used an experimental method in which treatment is established in a randomized block design factorial patterns and repeated 3 times. The first factor Ameliorant material is Gypsum, Biochar and organic PIM and the second dose of urea, SP36 and KCl, Research results obtainedmaterial ameliorant PIM organic and biochar can increase the uptake of N and fertilizer efficiency K nutrient rice strains Sikuneng while treatment for N, P and K at a dose of Urea 225 kg / ha, SP-36 150 kg / ha and KCl 150 kg / ha can improve nutrient uptake, fertilizer efficiency and yield of rice strains Sikuneng, but there is no interaction between ameliorant and fertilizer to nutrient uptake, fertilizer efficiency and yield strains of rice plants Sikuneng.

Eksplorasi Bakteri Selulolitik pada Ekosistem Mangrove Djanang Sukoco; Fikrinda Fikrinda; Hifnalisa Hifnalisa
Jurnal Ilmiah Mahasiswa Pertanian Vol 5, No 3 (2020): Agustus 2020
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Abstrak. Bakteri selulolitik dapat dijumpai pada lingkungan seperti ekosistem hutan mangrove. Keberadaannya pada ekosistem mangrove sangat penting untuk dekomposisi serasah magrove tersebut. Penelitian ini bertujuan untuk mengetahui adanya bakteri selulolitik pada ekosistem hutan mangrove dan potensinya dalam mendegradasi selulosa secara semi kuantitatif. Metode penelitian ini meliputi pengambilan sampel tanah, isolasi bakteri selulolitik dan uji kemampuan mendegradasi selulosa. Isolasi bakteri dilakukan dengan metode cawan tuang dan pada medium Carboxy Methyl Celullose (CMC). Uji kemampuan degradasi oleh bakteri selulolitik dilakukan pada medium dengan sumber karbon CMC dan daun mangrove. Parameter pengamatannya mengukur aktivitas selulolitik secara semi kuantitatif dan karakterisasi bakteri selulolitik. Hasil penelitian ini menunjukkan bakteri selulolitik yang terdapat di ekosistem mangrove berkisar antara 1,1x104 SPK g-1 tanah sampai 40,9x104 SPK g-1 tanah. Populasi bakteri selulolitik rata-rata asal tanah mangrove bakau kurap18,16x104 SPK g-1, api-api 12,98x104 SPK g-1dan bakau minyak 4,94x104 SPK g-1. Bakteri selulolitik yang memiliki aktivitas selulolitik tertinggi pada medium dengan sumber karbon CMC adalah isolat RM2.1;RA5.4;AA4.4 dengan rasio zona bening berturut-turut 5,2;4,4;2,5 dan pada medium dengan sumber karbon daun mangrove adalah isolat RA4.8;AA2.1;RM1.1 dengan rasio zona bening berturut-turut 2,3;1,2; 1,2.Exploration of Cellulolytic Bacteria in the Mangrove EcosystemAbstract. Cellulolytic bacteria can be found in environments such as mangrove forest ecosystems. Its presence in the mangrove ecosystem is very important for the decomposition of the magrove litter. This study aims to determine the presence of cellulolytic bacteria in mangrove forest ecosystems and their potential in semi-quantitative cellulose degradation. This research method includes soil sampling, isolation of cellulolytic bacteria and testing the ability to degrade cellulose. Bacterial isolation was carried out by the pour cup method and on Carboxy Methyl Celullose (CMC) medium. The degradation ability test by cellulolytic bacteria was carried out on a medium with CMC carbon source and mangrove leaves. The observational parameters measure semi-quantitative cellulolytic activity and characterization of cellulolytic bacteria. The results of this study showed that cellulolytic bacteria in the mangrove ecosystem ranged from 1,1x104 SPK g-1 soil to 40,9x104 SPK g-1 soil. The average population of cellulolytic bacteria from mangrove mangrove soil was ringworm 18,16x104 SPK g-1, fires 12,98x104 SPK g-1 and mangrove oil 4,94x104 SPK g-1. Cellulolytic bacteria that have the highest cellulolytic activity on medium with CMC carbon sources are isolates RM2.1;RA5.4;AA4.4 with clear zone ratios of 5,2;4,4; 2,5 and on medium with carbon sources mangrove leaves were RM1.1;AA2.1;RA4.8 isolates with a clear zone ratio of 2,3;1,2; 1,2, respectively.

Isolasi dan Identifikasi Fungi Mikoriza Arbuskula (FMA) pada Berbagai Varietas dan Umur Kopi Arabika (Coffea Arabica L.) di Kecamatan Timang Gajah Kabupaten Bener Meriah Riko Syahputra; Fikrinda Fikrinda; Hifnalisa Hifnalisa
Jurnal Ilmiah Mahasiswa Pertanian Vol 6, No 1 (2021): Februari 2021
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Abstrak: Fungi mikoriza arbuskula (FMA) merupakan tipe asosiasi mikoriza yang tersebar sangat luas, fungi ini yang memiliki peran dan manfaat yang penting dalam dunia pertanian. Penelitian bertujuan mengetahui keanekaragaman FMA, jumlah spesies spora FMA, dan kolonisasi FMA pada rizosfer berbagai varietas dan umur tanaman kopi arabika di Kecamatan Timang Gajah, Kabupaten Bener Meriah. Penilitian dilaksanakan di perkebunan kopi rakyat di Desa Lampahan Barat dan Desa Mude Benara, Kecamatan Timang Gajah, Kabupaten Bener Meriah. Masing-masing varietas dan umur diambil sebanyak 3 titik, sehingga didapatkan sebanyak 24 sampel. Sampel tanah tersebut digunakan untuk mengisolasi jenis FMA yang terdapat di lahan tersebut. Analisis beberapa sifat kimia dan fisika juga dilakukan untuk mendapatkan data pendukung seperti, pH H2O, C-Organik, N-Total, P-Tersedia, KTK, dan Tekstur. Analisis beberapa sifat kimia dan fisika tanah dilakukan terhadap sampel tanah komposit dari setiap titik sampel, untuk setiap varietas dan umur kopi arabika. Parameter pengamatan yang dilakukan meliputi: Kepadatan spora FMA, identifikasi jenis spora FMA, dan kolonisasi FMA. Hasil pengamatan menunjukkan terdapat tiga genus FMA yang didapat pada rizosfer beberapa varietas dan umur kopi arabika di Kecamatan Timang Gajah yaitu Glomus, Acaulospora dan, Gigaspora.Terdapat Genus Glomus sebanyak dua spesies, sedangkan genus Acaulospora dan genus Gigaspora sebanyak empat spesies. Kepadatan spora FMA terbanyak ditemukan pada tanaman kopi arabika varietas Tim-Tim berumur lima tahun. Kolonisasi FMA pada akar kopi arabika pada beberapa varietas tergolong kriteria sangat rendah hingga rendah. Isolation and Identification of Arbuscular Mycorrhizal Fungi (AMF) in Various Varieties and Ages of Arabica Coffee (Coffea arabica L.) in Timang Gajah District, Bener Meriah RegencyAbstract. Arbuscular mycorrhizal fungi (AMF) are a very widespread type of mycorrhizal association, these fungi which have important roles and benefits in agriculture. The research aimed to determine the diversity of AMF, the number of AMF spore species, and AMF colonization in the rhizosphere of various varieties and ages of Arabica coffee plants in Timang Gajah District, Bener Meriah Regency. The research was carried out in coffee plantations in West Lampahan and Mude Benara Village, Timang Gajah District, Bener Meriah Regency. 3 points were taken for each variety and age, so that 24 samples were obtained. The AMF was isolated by using soil samples which found in the land. The chemical and physical analysis properties was also carried out to obtain supporting data such as pH, H2O, C-Organic, N-Total, P-Available, CEC, and Texture. Analysis of several chemical and physical properties of soil was carried out on composite soil samples from each sample point, for each variety and age of Arabica coffee. Observation parameters carried out included: AMF spore density, identification of AMF spore types, and AMF colonization. The results showed that there were three AMF genera obtained in the rhizosphere of several varieties and ages of Arabica coffee in the District of Timang Gajah, namely Glomus, Acaulospora, and, Gigaspora. There are two species of genus Glomus, while four species of genus Acaulospora and Gigaspora. The highest density of AMF spores was found in the five-year-old Tim-Tim arabica coffee plant. AMF colonization in arabica coffee roots in several varieties was classified as very low to low criteria.

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