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AGROEKOTEKNOLOGI

agroekoteknologi
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Published by Universitas Sumatera Utara

ISSN : 23376597 EISSN : - DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah

Arjuna Subject : -

Articles 943 Documents

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Efek Air Laut dan Bahan Mineral Terhadap Sifat Kimia Tanah, Pertumbuhan dan Produksi Padi Pada Tanah Gambut Lila Wulandari; Sarifuddin Sarifuddin; Benny Hidayat
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The objective of this research is to study the effect of sea water and mineral materials on soilchemical properties, growth and production of rice in peat soils. This research was conducted atgreen house and samples analyzed at soil chemical and fertility laboratory and research andtechnology laboratory. This research used factorial randomized block design with 2 factorstreatments consist of sea water and mineral materials (volcanic material, steel slag, dolomite, andcalx) with 3 replications. Volume of sea water added were 0 ml (+ 1000 ml fresh water) per pot,250 ml (+ 750 ml fresh water) per pot and 500 ml (+ 500 ml fresh water) per pot. Dosage ofvolcanic material, steel slag, dolomite, and calx are 250 g/pot, 50 g/pot, 50 g/pot, and 250 g/pot.The result showed that application volume of sea water influenced significantly increase ofelectrical conductivity, ratio C/N and empty grains but not significantly effect on soil acidicity,natrium, kalium, calcium, and magnesium exchangeable, cation exchange capacity, base saturation,organic carbon, total nitrogen, bulk dencity, number of tillers, and productive tillers per clump, andweight of 1000 grain. Application of mineral materials (volcanic sand, steel slag, dolomite, andcalx) increase significantly of soil acidicity, cation exchange capacity, organic carbon, and weight1000 grain but not significant on natrium exchangeable, total nitrogen and bulk dencity.Keyword: sea water, volcanic sand, steel slag, dolomite, calx, peat, rice

Respons Pertumbuhan Berbagai Ukuran Diameter Batang Stek Bugenvil (Bougainvillea spectabilisWilld.) Terhadap Pemberian Zat Pengatur Tumbuh Leo Richi H Panjaitan; Jasmani Ginting; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Successive percentage of bugenvil plant propagation by cutting method is low enough sincebugenvil is difficult to rooting plant. The availability of carbohydrate source and plant growthregulator in the stem cutting are factors that influencing the successive of cutting. Solution to solvethis problem is selection of the size of stem and giving the exsogen plant growth regulator. Theresearch was done in Screen House at Agricultural Faculty, University of North Sumatra, Medan inJanuary until August 2013 to study the growth of sizes of diameter stem cutting with application ofthe growth regulators. The design of the research used randomized block design of factorial withtwo factors of treatment and three replications. The first factor was diameters of stem cutting which6, 12 and 18 mm. The second factor was application of the plant growth regulator IBA + BAPwhich control, 400+ 400 ppm, 600 + 600 ppm and 800 + 800 ppm. Parameters were shoot height,shoot diameter, root fresh weight of sample, root dry weight of sample, shoot fresh weight ofsample, and shoot dry weight of sample. The results showed that diameter 18 mm and giving ofplant growth regulator 800 + 800 ppm gave the great influence in cutting growth.Key words : size of diameter stem cutting, plant growth regulator, bugenvil

Pertumbuhan Dan Produksi Kacang Tanah (Arachis hypogaea L.) Dengan Pemberian Pupuk Kandang Sapi Dan Pupuk Fosfat Pendi Kurniawan Pasaribu; Asil Barus; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This research was aimed to know the effect of cow manure and phosphate fertilizer toward growthand production of peanuts. The research was conducted at the farm field with altitude ± 25 metersabove sea level, began from January until March 2012 using Randomized Block Design with twofactors. The first factor was cow manure which consist of four levels, that were K0 (0 g/plot), K1(875 g/plot), K2 (1.750 g/plot), and K3 (2.625 g/plot), and the second was phosphate fertilizerconsist of three levels, that were P0 (0 g/plot), P1 (17,5 g/plot), and P2 (35 g/plot). Parametersobserved were plant height, number of primary branch, flowering time, pods number per plant,filled pods number per plant, seed production per plant, seed production per plot, and weight of 100dry seeds. The results showed that only plant height 5 week after planting and pods number perplant were significantly affected by cow manure, meanwhile all parameters observed weresignificantly affected by phosphate fertilizer except for plant height and number of primary branch.There was no interaction between both treatments.Keywords : cow manure, phosphate fertilizer, peanut

Tanggap Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) Pada Dosis Pupuk Kalium dan Frekwensi Pembumbunan Nelson Simanjuntak; Rosita Sipayung; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Attempts to increase the yield of peanut can be done with fertilizer and pile up. The purpose of thestudy was to determine the response of KCl fertilizer and pile up frequency on the growth and yieldof peanuts. The research was conducted at Pasar I Tanjung Sari street, Medan with the height of 25metres above sea level, began from April until Juli 2013. The design of the research was arandomized block design with two factors. The first factor was dose of KCl fertilizer (0, 50, 100,and 150 kg/ha) and the second was pile up frequency (20; 20 and 40; and 20, 40, and 60 days afterplanted). The parameters observed were plant height, number of branches, flowering age, number ofginofor per sample, number of pods per sample, number of filled pods per sample, weight of podsper plot, weight of grain per plot, and weight of 100 grains. The results showed that the weight ofpods per plot and weight of grain per plot were significantly affected by pile up frequency. Howeverall parameters observed were unsignificantly affected by dose of KCl and treatment interaction.Key words : KCl fertilizer, pile up frequency, peanuts.

Respons Pertumbuhan dan Produksi Beberapa Varietas Tomat (Lycopersicum esculentum L.) Dataran Rendah Terhadap Pemberian Pupuk Kandang Ayam Ali Zainal Abidin; Emmy Harso Kardhinata; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the growth response and yield of some varieties oflowland tomato (Lycopersicum esculentum L.) under application of chicken manure. The researchwas conducted at Pasar I Tanjung Sari, Medan, of 25 meters above sea level, from June until August2013. The research design is a randomized block design with two factors, tomato varieties; Rempai,Vida and Super King, and chicken manure’s dosages; 0, 250, 500 and 750 g/polybag. Parametersobserved were plant height (cm), the number of fruit per plant, the number of bunches, the numberof fruit per bunch, average fruit weight (g) and heritability. The results showed that tomato varietieshave significant different on plant height, average fruit weight, the number of bunches, the numberof fruit per plant and the number of fruit per bunch, dosage of chicken manure showed significantparameters plan height, the numberof bunches and the number of fruit per bunch. Interaction of bothtreatments gave significant different on plant height, the number of bunches, the number of fruit perplant and the number of fruit per bunch.Key words : lowland tomato variety, chicken manure

Identifikasi Dan Inventarisasi Jenis Tanaman Umbi-Umbian Yang Berpotensi Sebagai Sumber Karbohidrat Alternatif Di Kabupaten Serdang Bedagai Sihol Marito Sibuea; Emmy Harso Kardhinata; Syafruddin Ilyas
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Dependence on rice as a food source can be reduced by diversification by utilizing tuberous cropsas a potential alternative source of carbohydrates. In Indonesia there are several types of tuberouscrops that have not been consumed as an alternative carbohydrate source. The objective of thisresearch is to obtain an overview of tuberous plants diversity, distribution and cultivationtechniques as an alternative sourceof carbohydrate. This research was conducted at the SerdangBedagai Regency from July to August 2013. The data was collected through survey methodat 3 (three) districts with 3 (three) villages for each. Sampling was done based on judgmentalsampling and accidental sampling. The research found some tuberous crops such as Dioscoreaalata., Dioscorea esculenta.,Colocasia esculenta, Xantosoma sagittifolium, Canna edulis,Maranta arundinacea, Amorphophallus campanulatus, Some crops grow on orchard and some ofthem have been cultivated intensively by farmers.Keyword : identification, inventory, tuberous crops

Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Pada Berbagai Perbandingan Media Tanam Sludge dan tandan Kosong Kelapa Sawit (TKKS) Di PreeNursery pree Nur sersey Haikal Hanif Nasution; Chairani Hanum; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Growth of Oil Palm Seedlings (Elaeis guineensis Jacq.) with Different Comparison Sludge andEmpty Palm Oil Fruit Bunches (EPOFB) Media in Pre Nursery. Guided by CHAIRANI HANUMand RATNA ROSANTI LAHAY. The objective of this research was to study growth of oil palmseedlings at various growing media comparisons of sludge and EPOEFB in pre nursery. Thisresearch was conducted at Kebun Bangun PTPN III from January-June 2013 using non factorialrandomized block design consisted of 11 types of growing media: top soil, sludge, TKKS andcomposite media 10:80:10, 10:70:20, 10:60:30, 10:50:40, 10:40:50, 10:30:60, 10:20:70, 10:10:80.Parameters observed were shoot and root dry weight. The results showed that each media haddifferent growth characteristics. The growth media was significantly efffect on all parametersexcept plant height. Sludge can be used as a growing media if it is in the form of a mixture. If thesludge is used alone then plant growth restricted. Media composition 10:20:70 gave the best resultsthrough the highest value shoot dry weight.Keywords : growth , seeds , palm oil , sludge , TKKS

Pemberian Bahan Organik Kompos Jerami Padi dan Abu Sekam Padi dalam Memperbaiki Sifat Kimian Tanah Ultisol Serta Pertumbuhan Tanaman Jagung Maulana Azomy Pane; M. M. B. Damanik; Bintang Sitorus
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The Objective of this study is determine the effect of rice straw compost and rice ash on somechemical properties of Ultisol and its effect on the growth of corn plants. The research was done ingauze house and Research and Technology Laboratory, Agricultural Faculty, University of NorthSumatera, Medan from May until July 2013. The study used randomized block design consits of twofactors with three replications. The first factor are rice sraw compost consist of four dosage level(g/5 kg dry oven soil weight) : K0 (0), K1 (25), K2 (50), K3 (75) and the second factore are rice ashconsist of four dosage level (g/5 kg dry oven soil weight) : M0 (0), M1 (10), M2 (20), M3 (30).Theresults showed that the effect of aplication of rice straw compost significantly increased soil Corganic,P-available, plant height, dry weight of a plant, plant N uptake, and plant P uptake but notsignificantly effect the soil pH and N-total of soil, aplication of rice ash significantly increased soilC-organic and plant N uptake but not significantly increased the soil pH, P-available, N-total of soil,plant hight, dry weight plant and plant P uptake.Keyword: ultisol, rice straw compost, rice ash

Evaluasi Status Hara Tanah Berdasarkan Posisi Lahan di Kebun Inti Tanaman Gambir (Uncaria gambir Roxb.) Kabupaten Pakpak Bharat Muhammad Arif Setiawan; Abdul Rauf; Benny Hidayat
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Evaluation of soil nutrient status is one way to be able to determine the nutrient needs of the soiland the management techniques that will be performed on an area of land. This study aimed toevaluate the nutrient status of the soil (pH, N, P, K, Ca, Mg) based on the position of the land in thecore Gambir Garden Pakpak Bharat District. It was conducted at the core Gambir Garden PakpakBharat District, North Sumatra on March 2013 until June 2013. The method used in this research isdescriptive method by conducting surveys and soil sampling based on the position of the land whichis on the top of the hill, hillside and valley side. The results showed soil nutrient status of N in CorePlant Gambir Garden Pakpak Bharat District. is likely to increase in the valley compared to the topof the hill and hillside. As for the value of pH and P are highly the same, while the value of K, Caand Mg rate tends to decrease.Keyword: land position, soil nutrients, gambir (Uncaria gambir Roxb.)

Analisis Pengaruh Tekstur Dan C-Organik Tanah Terhadap Produksi Tanaman Ubi Kayu (Manihot esculenta Crantz) Di Kecamatan Pegajahan Kabupaten Serdang Bedagai Jayagust K.A Junior Sinaga,; Supriadi Supriadi; Alida Lubis
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The Analysis of Soil Texture and C-Organic Influence for Cassava Production(Manihot esculenta Crantz.) at Sub District Pegajahan, Serdang regency. The research purpose is todetermine the effect of soil texture and C-organic influence of cassava production at Sub DistricPegajahan. The research was conducted on June-July 2013. Sample was taken have a lot of 50farmers by using simple random sampling methode. The parameters was being analiysed were soiltexture and C-organic. Then appraisal data processed with regression method. Final research resultsshown that C-organic effect toward cassava production, sand, silt and clay has no significant effecttoward cassava production. The optimal C-organic for cassava production is 0,203 %, while themean C-organic more than from the optimal C-organic at Sub Distric Pegajahan.Keywords : Soil Texture, C-Organic, Cassava Production

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