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INDONESIA
Jurnal Agroteknotropika
Published by Universitas Negeri Gorontalo
ISSN : 22523774     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Media Publikasi dan Komunikasi Ilmiah bidang Ilmu Tanah, Agronomi dan Hama Penyakit Tanaman.
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 1, No 1, 2012" : 7 Documents clear
Inventarisasi dan Analisis Identifikasi Penggunaan Lahan Berdasarkan Tumpang Tindih Lahan Kontrak Karya pada PT. Gorontalo Mineral Halid, Amir; Fauzi, Akhmad
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

Bone Bolango region located in Gorontalo Province covers an area of 188,006.43 ha which consist of 142,664.38 ha (75,88%) forest and 45,326,5 ha (24,22%) is regional estated. The regency is endowed with rich mineral resources, yet it finds some difficulties in planning and developing ist regional economics, such as how to arrange the regional planning which is based on existing land. The government has already issued licences for optimalyzed the resource for a mining company (kontrak karya). This condition has created un-fair competition between government and society and also society and company which tend to create conflicts over resurces. This case emerged when there was institutional vacuum particularly from forestry Department as the forestry national utirization also the company who has a licency of mining consetion. The Illegal Mining activities, agriculture, garden, and region estated is developing and become informal institutional or shadow economy to fulfil the uncertainty of resources outority from the nation.
Pengaruh Dosis Formula PGPR Asal Perakaran Bambu terhadap Pertumbuhan Tanaman Tomat (Solanum lycopersicum syn) Iswati, Rida
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

This study aims to determine the effect of different doses of PGPR formula from bamboo roots on the growth of tomato. Research using experimental methods in the screen house the Faculty of Agricultural Sciences and its lay out according to randomized complete design with five treatments namely doses 0; 2.5; 5; 7.5, 10 and 12.5 ml of PGPR and each treatment was repeated 4 times. Indicators measured were plant height, leaf number, root number and length. The results showed that plant height and root length increased with increasing dose while the number of leaves and roots showed the highest yield at a dosage of 7.5 ml.
Morfologi, Sifat Fisik dan Kimia Tanah Inceptisols dari Bahan Lakustrin Paguyaman- Gorontalo Kaitannya dengan Pengelolaan Tanah ., Nurdin
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

The Inceptisols has potential for upland agroculture, but it has problems in the field. Identification and soil characterization was need for mismanagements. Research aimed to indentify the Inceptisols characteristic derived from lakustrine as based of soil managements. Two pedons from Paguyaman of Gorontalo Province were studied both in field and in the laboratory. Twelve soil samples were analyzed for physical and chemical properties. The result of this research showed that the soil morfology of Paguyaman Inceptisols has horizon of arrangement was Ap-Bw and Ap-Bw-Br with different soil depts. Soil matrix color of two pedons dominantly of brown that indicated of B cambic horizon has formed but has not argillic horison. All pedon finded of ocrich epipedons, therefore the soil classify as Typic Eutrudept, fine loamy, smectitic, isohypertermic (PLKS) and Typic Eutrudept, fine, smectitic, isohypertermic (PLKM). Inceptisol was forming way of pedoturbation and lessivage process where done clay and C-organic movements, ground water finded in 100 cm soil depts to half time in a years and base saturation ? 60%. This Inceptisol has loamy of textures, acid until alkalis of soil pH, moderately of nutrient stock and cation exchange capacity moderate until high value. These carracteristics indicated that this soil has potential for food crop cultivations. Therefore, the pedon PLKM more potential than pedon PLKS
Penentuan Masa Tanam Jagung (Zea mays L.) Berdasarkan Curah Hujan dan Analisis Neraca Air di Kabupaten Pohuwato Musa, Nikma
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

The aimed of this research was to determining of maize growing periods based on rainfall and water balance analysis in Pohuwato Regency. Identify agro-climate and climate interpretation of data based on years of observation during 1994-2008. The evapotranspiration using methods Blaney-Criddle measured with the water temperature and latitude as prime criterions. The result showed that the annual rainfall was 1.382 mm-1 year. Variations in rainfall ranges from 48.40 mm to 203.11 mm. the lowest rainfall in August and highest in January. The results of calculation of the year every decade showed that the highest rainfall is in the third decade (75.78 mm) in January and the lowest rainfall is in the decade of 23, 24, 26, 27, 29 (11-16 mm) in August, September and early October. Data obtained from the calculated potential evapotranspiration, the highest 60, 64 mm/decade or 170.903 mm/month. Based on the analysis of water balance 0.5 ETP and rainfall (P), then look rainfall values exceeding 0.5 ETP in January until mid-July and early November to December, so that in the months that have a surplus of water, with thus in the months which will serve as the initial basis of the growing season. Late July to late October water deficit. The analysis showed Plant period available for the maize crop in the region Pohuwato in November too early or mid-July and planting can be done three times by the age of the plant is 80-110 days.
Induksi Protocorm pada Eksplan Bawang Putih pada Media MS Minim Hara Makro dan Mikro yang Ditambahkan Air Kelapa Husain, Indriati
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

This research aims to determine the occurrence on induction of protocorm in garlic on the media MS minimal macro and micro nutrient added coconut water. The materials used are garlic, coconut water and nutrient minimal macro and micro. The result was the establishment of direct induction of green protocorm from garlic explants. Conclusion of this research is the addition of 15% coconut water in medium MS minimal macro and micro nutrient can induce formation of protocorm directly from garlic explants.
Model Simulasi Pertumbuhan dan Produksi Tanaman Tebu Pembengo, Wawan; ., Suwarto
Jurnal Agroteknotropika Vol 1, No 1, 2012
Publisher : Universitas Negeri Gorontalo

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Abstract

To reduce the level of difficulty conducting research in complex systems, modeling is defined as simplification of system with mechanistic approach, can be an alternative approach for understanding and prediction ecophysiology process of growth, development and production plants. Modeling the growth of sugarcane crop is expected to be used as a tool to predict the production of sugarcane production as well as in a development area. Research purposes that make simulation model of sugarcane growth and development develop the tools in an effort to plan and optimize the productivity of sugarcane and sugar productivity predicts. The experiment was conducted in Kotabumi of Lampung regency. Began in June 2008 ended in July 2009. Research materials in the form of climate data for 2 years (2008 to 2009), soil data, the data accumulation, and agronomic data. Tool in this study the precipitation gauge type observatory, TL-1 Illuminance meter to measure the radiation coming, belgi drill, sample ring, digital scales and oven. Research using analytical methods or simulation models of plant systems are supported field trials. The model is built based on the variables and parameters obtained from secondary data as well as from experiments. Construction of a simulation model of sugarcane growth and development has been able to simulate and describe the development and growth of sugarcane as shown by the results of field observations. The simulation results for the production of sugarcane harvested biomass 100 ton/ha while the observation of 85 ton/ha (the simulation results have to be in the range of values one standard deviation from the average). Phenological period and the prediction accuracy of the simulation results are relatively consistent with the observation field (simulated total biomass production 115 ton/ha while the observation of 101 ton/ha).
Infiltrasi dan Aliran Permukaan sebagai Respon Perlakuan Konservasi Vegetatif pada Pertanaman Kakao ., Nurmi; Haridjaja, O.; Arsyad, S.; Yahya, S.
Jurnal Agroteknotropika Vol 1, No 1, 2012
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Abstract

Cacao plant is one of the major commodities of plantation in South East Sulawesi, especially in Konawe regency. Practices of land management implemented by the local farmers to produce this cacao, in many cases are not according to soil and water conservation principles. The research was aimed to investigating the rate of infiltration and runoff on the loca farmers cacao cropping land at different slope as related to canopy cover. The research was conducted in Amosilu village, Besulutu district, Konawe regency, the province of South East Sulawesi, from December 2006 to September 2007. The experimental method with field study was applied in split plot design consisting three factors, namely (i) slope consisting two levels (10-15% and 40-45%) and (ii) age of the cacao plant consisting two levels (5 to 7 month and 25 to 27 month) were used as main plots (P1 = 5 to 7 month and 10-15%; P2 = 25 to 27 month and 10-15%; P3 = 5 to 7 month and 40-45%; and P4 = 25 to 27 month and 40-45%), while (iii) vegetative conservation treatment was used as sub plots consisting three levels, i.e T1 = cacao with disc clearing, T2 = dry field rice and soybean rotation within cacao plant, T3 = T2 + Arachis pintoi as strip plant. There was not interaction between both cacao plant and slope treatment with vegetative conservation treatment to water infiltration and runoff. The result showed that vegetative conservation treatment (T1) that is cacao with disc clearing was best alternative because they were produced the higher rate of total volume of infiltration(18.69 mm) and the lower rate of runoff (2715.44 m3 ha-1 year-1). Analysis of data with ANOVA (analysis of variance) and Duncan Multiple Range Test (P < 0,05) were done by using SAS program.

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