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PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN VERMIKOMPOS DAN URINE DOMBA

AGROEKOTEKNOLOGI Vol 1, No 1 (2012)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

The Growth and Yield of Shallot (Allium ascalonicum L.) according to Application of Vermicompost and Sheep Urine. Application of inorganic chemical fertilizers continuously without the use of organic fertilizers  has caused the degradation of agricultural land. The negative impacts caused by land degradation is a decline in agricultural yield, such as the yield of shallot. A solution to solve this problem is to replace the application of chemical fertilizers that can damage the soil into organic fertilizers that is safe for the environment. Research was conducted to determine the response of vermicompost and sheep urine to the growth and yield of shallot at Fakultas Pertanian USU’s Green House with a height of 25 m above sea level on April-June 2012 using randomized block design of two factors, the factors were  vermicompost (0;15;35;45g/plant) and sheep urine (0;200;400 cc/l water). The parameters observed were plant height, tillers number, leaf number, wet weight per sample,wet weight per plot, dry weight per sample, dry weight per plot and clove number. The results showed that interaction of vermicompost and sheep urine treatment significantly influenced the plant height. Vermicompost treatment significantly influenced the tiller number and leaf number. Sheep urine treatment significantly influenced the leaf number, wet weight per sample and dry weight per plot. Key words : shallot, land degradation, vermicompost, sheep urine     ABSTRAK Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.) dengan Pemberian Vermikompos dan Urine Domba. Pemakaian pupuk kimia anorganik yang terus menerus tanpa diimbangi penggunaan pupuk organik telah mendegradasi lahan pertanian. Salah satu dampak negatif yang diakibatkan oleh degradasi lahan ini adalah penurunan jumlah produksi pertanian, salah satunya adalah produksi bawang merah. Solusi yang dapat dilakukan untuk mengatasi masalah ini adalah dengan mengganti penggunaan pupuk kimia yang dapat merusak tanah menjadi pupuk organik yang aman bagi lingkungan. Untuk itu dilakukan penelitian untuk mengetahui respon dari pemberian pupuk organik vermikompos dan urin domba terhadap pertumbuhan dan produksi tanaman bawang merah di Rumah Kaca Fakultas Pertanian USU (±25 mdpl) pada April - Juni 2012 menggunakan rancangan acak kelompok 2 faktor yaitu vermikompos (0,15,30,45 g/tanaman) dan urin domba (0,200,400 cc/l air). Parameter yang diamati adalah tinggi tanaman, jumlah anakan per rumpun, jumlah daun per rumpun, bobot basah per sampel, bobot basah per plot, bobot kering per sampel, dan bobot kering per plot dan jumlah siung per sampel. Hasil penelitian menunjukkan interaksi antara vermikompos dan urin domba berpengaruh nyata pada tinggi tanaman. Perlakuan vermikompos berpengaruh nyata pada jumlah anakan dan jumlah daun. Urin  domba berpengaruh nyata terhadap jumlah daun, bobot basah umbi per sampel dan bobot kering umbi per plot. Kata kunci: bawang merah, degradasi lahan, vermikompos, urine domba.

RESPONS DOSIS BIOTIP Eleusine indica RESISTEN-GLIFOSAT TERHADAP GLIFOSAT, PARAKUAT, DAN GLUFOSINAT

AGROEKOTEKNOLOGI Vol 1, No 1 (2012)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

ABSTRACT Dose response of Eleusine indica biotype Glyphosate-resistance to Glyphosate, Paraquat, and Glufosinate. Goosegrass (Eleusine indica) is one of weeds commonly found in oil palm plantation of which is getting more difficult to control with glyphosate during the last few years in Adolina Estate, PTPN IV.  This study aims to determine the dose response of the putative resistant population to three herbicides, glyphosate, paraquat, and ammonium glufosinat along with susceptible population which was never exposed to herbicide previously. The rates of glyphosate applied were 0, 120, 240, 360, 480, 600, 720 g a.i. ha-1; paraquat at 0, 50, 100, 150, 200, 250, 300 g a.i. ha-1 and ammonium glufosinat at 0, 110, 220, 330, 440, 550, 660 g a.i. ha-1.  The treatments were arranged in randomised block design (RBD) and each treatment was made in three replicates. The results showed that the putative glyphosate- resistant population collected from Adolina Estate was multiple resistant to glyphosate, and paraquat.  On the other side, the ammonium glufosinate was satisfactorily control the population.  The level of resistance to glyphosate and paraquat were seven and 56 fold of the susceptible population respectively. Keywords: Glyphosate, Paraquat, Glufosinate, herbicide, Eleusine indica, resistance ABSTRAK Respons dosis  biotip Eleusine indica resisten-glifosat terhadap glifosat, parakuat, dan glufosinat. Gulma Eleusine indica merupakan salah satu gulma yang biasa ditemukan di perkebunan kelapa sawit yang selama beberapa tahun terakhir telah diketahui semakin sulit untuk mengendalikannya dengan glifosat di Kebun Adolina, PTPN IV. Penelitian ini bertujuan untuk mengetahui respons dosis populasi yang diduga resisten terhadap tiga herbisida, glifosat, parakuat, dan ammonium glufosinat menggunakan populasi resistensi yang pernah disemprot herbisida sebelumnya. Taraf dosis glifosat yang digunakan, yaitu 0, 120, 240, 360, 480, 600, 720 g b.a./ha; parakuat pada 0, 50, 100, 150, 200, 250, 300 g b.a./ha dan ammonium glufosinat pada 0, 110, 220, 330, 440, 550, 660 g b.a./ha. Perlakuan disusun dalam rancangan acak kelompok (RAK) dan setiap perlakuan dibuat dalam tiga ulangan. Hasil penelitian menunjukkan bahwa populasi                     resisten-glifosat yang berasal dari Kebun Adolina terjadi resistensi ganda pada glifosat dan parakuat. Di sisi lain, ammonium glufosinat secara memuaskan dapat mengontrol populasi. Tingkat ketahanan terhadap glifosat dan parakuat masing-masing tujuh dan 56 kali lipat dari populasi resisten. Kata kunci: Glifosat,  Parakuat, Glufosinat,  herbisida, Eleusine indica, resistensi

PRODUKSI BEBERAPA VARIETAS KEDELAI (Glycine max L. MERILL) DENGAN PEMBERIAN BERBAGAI SUMBER HARA N

AGROEKOTEKNOLOGI Vol 1, No 1 (2012)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

ABSTRACT Production of soybean (Glycine max L. Merill) varieties with application of various N fertilizer sources. Soybean is a protein material and essential commodity in Indonesia. National soybean production has decreased each year. Increasing number of imported transgenic soybeans and high public awareness of healthy living, then powered back organic farming systems. The aim of this research was to know the production of 3 varieties of soybean with application of various N fertilizer sources. Research conducted at the Screen House Faculty of Agriculture, University of Sumatera Utara, Medan on February - May 2012, using a randomized block design factorial with two factors and three replications. The first factor was sources of fertilizer nitrogen consisted of without N fertilizer, inorganic N fertlizer (Urea), biological N fertilizer (Bradyrhizobium japonicum), organik N fertilizer composted of straw (50 g / polybag), and manure (50 g / polybag). The second factor was soybean varieties consisted of Anjasmoro, Sinabung, and Willis. The results showed that varieties of soybean were significantly difference to dry weight of 100 seeds. Interaction between soybean varieties and application of various N fertilizer sources did not give the significant effect for all parameters.Keywords: soybean, nitrogen, production, variety  ABSTRAK Produksi  beberapa varietas kedelai (Glycine max L. Merill)  dengan  pemberian berbagai sumber hara N. Kedelai merupakan bahan protein nabati dan komoditas penting Indonesia. Produksi kedelai nasional mengalami penurunan setiap tahunnya. Semakin banyaknya kedelai impor transgenik dan tingginya kesadaran masyarakat untuk hidup sehat, maka diberdayakan kembali sistem pertanian organik. Tujuan penelitian ini adalah untuk mengetahui respons produksi 3 varietas kedelai dengan pemberian berbagai sumber hara nitrogen. Penelitian dilaksanakan di Rumah Kasa Fakultas Pertanian Universitas Sumatera Utara, Medan pada bulan Februari - Mei 2012, menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan 2 faktor dan 3 ulangan. Faktor pertama perlakuan sumber hara N, yaitu tanpa hara nitrogen, hara N anorganik (Urea), hara N hayati (Bradyrhizobium japonicum), kompos jerami (50 g/polibeg), dan pupuk kandang sapi (50 g/polibeg). Faktor kedua adalah varietas kedelai, yaitu Anjasmoro, Sinabung, dan Wilis. Hasil penelitian menunjukkan bahwa varietas kedelai berpengaruh nyata terhadap bobot kering 100 biji. Interaksi antara varietas kedelai dan pemberian berbagai sumber hara N tidak berpengaruh nyata untuk semua peubah amatan. Kata kunci : kedelai, nitrogen, produksi, varietas

PERTUMBUHAN DAN HASIL UBI JALAR DENGAN PEMBERIAN PUPUK KALIUM DAN TRIAKONTANOL

AGROEKOTEKNOLOGI Vol 1, No 1 (2012)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

ABSTRACT Sweet potatoes growth and yield with application potassium fertilizer and triakontanol growth         rate regulator. Sweet potatoes is a food that has a source of carbohydrate and contain a variety of nutrients. The other alternative to increase sweet potatoes productivity were application potassium fertilizer and triakontanol growth rate regulator. Potassium fertilizer is expected to increase growth, production and quality of tuber. Triakontanol growth rate regulator who has the ability to improve plant root system, to improve nutrient uptakes optimization. The objective of the research was to study growth and production of sweet potato with application potassium and triakontanol, was conducted in Pasar 1 Tanjung Sari, Medan from March to July 2012. This research used randomized block design factorial with two factors. First factor is potassium fertilizer dose that is 0, 1.5, 3, and 4.5 g KCl / plant, the second factor is  triakontanol dose that is 0, 0.0005, 0.0010, and 0.0015 g / l  water. The result of the research showed that potassium were significantly effect with plant’s length parameter on 7 week after planting with the highest average of 25.83 cm at dose  1.5 g KCl / plant. And triakontanol non significant effect to the growth and yield of sweet potatoes, and non interaction both of potassium and triakontanol to all parameter. Keywords: Sweet potato, potassium fertilizer, triakontanol ABSTRAK Pertumbuhan dan hasil ubi jalar dengan pemberian pupuk kalium dan triakontanol. Ubi jalar merupakan bahan pangan yang memiliki sumber karbohidrat dan kandungan zat gizi yang beragam. Salah satu upaya peningkatan produktivitas ubi jalar adalah pemberian pupuk kalium dan zat pengatur tumbuh triakontanol. Pupuk kalium diharapkan dapat meningkatkan pertumbuhan, produksi dan kualitas umbi. Triakontanol adalah zat pengatur tumbuh yang memiliki kemampuan dalam memperbaiki sistem perakaran tanaman, sehingga terjadi optimalisasi penyerapan hara oleh tanaman. Penelitian ini dilakukan untuk mengetahui pertumbuhan dan hasil ubi jalar pada pemberian pupuk kalium dan triakontanol yang dilaksanakan di lahan masyarakat Pasar 1 Tanjung Sari, Medan mulai maret sampai juli 2012 menggunakan Rancangan Acak Kelompok faktorial dengan 2 faktor. Faktor pertama adalah pupuk kalium dengan dosis 0, 1.5, 3, dan 4.5 g KCl/tanaman, sedangkan faktor kedua adalah triakontanol dengan dosis 0, 0.0005, 0.0010, dan 0.0015 g/l air. Hasil penelitian menunjukkan bahwa pupuk kalium berpengaruh nyata pada pertambahan panjang tanaman umur 7 MST dengan rataan tertinggi 25.83 cm pada dosis 1.5 g KCl/tanaman. Triakontanol tidak berpengaruh terhadap pertumbuhan dan hasil ubi jalar, serta tidak terjadi interaksi pupuk kalium dan triakontanol terhadap semua peubah amatan. Kata kunci: Ubi jalar, pupuk kalium, triakontanol

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN PUPUK KANDANG AYAM DAN EM4 (Effective Microorganisms4

AGROEKOTEKNOLOGI Vol 1, No 4 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

Shallot is the one of leading vegetable which has long been cultivated by farmers intensive, the lowyields of shallot in Indonesia is caused by the use of low quality seeds and planting medium that isnot good. Efforts to increase onion yields, among others by chicken manure and EM4. Thisresearch has been conducted to obtain the optimal dose the effect of chicken manure and EM4application on the growth and yield of the shallot. Research was conducted on Jalan Pasar Satu,Medan Selayang, Medan with a height of 25 m above sea level on June to August 2012. usingrandomized block design of two factors, the factors are chicken manure (0, 40, 80, 120 g / plant) andEM4 (0, 3.5, 7 cc / l of water). The parameters observed were plant height, tillers number, leafnumber, wet weight per sample, wet weight per plot, dry weight per sample, dry weight per plot andclove number. The results showed that treatment of chicken manure significantly influenced all theparameters in which a dose of 120 g / plant showed the highest yields. EM4 treatment significantlyinfluenced the parameters of wet weight per plot and dry weight per plot. Interaction of bothtreatments significantly influenced wet weight per plot, dry weight per plot, and the cloves numberper sample.Key words : shallot, chicken manure, EM4

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum .L) TERHADAP PEMBERIAN KOMPOS KULIT KOPI DAN PUPUK ORGANIK CAIR

AGROEKOTEKNOLOGI Vol 2, No 1 (2013)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

ABSRACTShallot is one of the superior spice plants.Nowday, cultivation of shallot is directed for using inputfrom organic matter. Coffea peel compost and liquid organic fertilizer are potential nutrient sourceto use in organic cultivation of shallot. The growth and production of shallot by giving coffee barkcompost and liquid organic fertilizer. This research was proposed to find out effect of growth andproductions respons of shallot as coffee bark compost and liquid organic fertilizer. The researchstarted from october to december 2011. The design use randomized block design factorial with 2aspect. The first aspect is compost bark coffee consist of four stages those were K0 ( 0 g/plant ), K1( 30 g/plant ), K2 ( 60 g/plant ), ( 90 g/plant ). The second factor is liquid organic fertilizer consistfour stages those are P0 ( 0 ml/l water ), P1 ( 3 ml/l water ), P2 ( 6 ml/ l water ), P3 ( 9 ml/l water ).Coffee bark compost given ferform real effect to number of leave per clumb 6 MST, diameter ofbulk and production per plot but not gave any influenced to high of plant, leaves number per sample2 – 5 MST, number bulbs per sample, wet weight per sample and dry weight per sample. Liquidorganic fertilizer given ferform real effect to high of plant per sample 3 – 6 MST, leaves number persample 5 and 6 MST, diameter of bulk per sample and production per plot, but not gave anyinfluenced to high plant 2 MST, leave number per clump 2 – 4 MST, number bulbs per sample, wetweight per sample and dry weight of bulb per sample. The intraction between both aspectinfluenced on diameter of bulb.Key words : coffee bark compost, liquit organic fertilizer, shallot, growth and productions

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) DENGAN PEMBERIAN PUPUK HAYATI PADA BERBAGAI MEDIA TANAM

AGROEKOTEKNOLOGI Vol 2, No 2 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

Growth and Production of Shallot (Allium ascalonicum L.) to the Application of Biofertilizer in theVariety of Plants Media. The objective of this research was to know growth and production ofshallot (Allium ascalonicum L.) to the application of biofertilizer in the variety of plants media, itwas conducted at Tanjung Selamat, Sunggal, Medan with altitude ± 25 meter above the surface ofsea, began January until April 2012, by using a Randomized Block Design with two factors. Firstfactor was plants media consist of four level : M1 (Ultisol : Sand (2:1)), M2 (Vermicompost : Sand(2:1)), M3 (Ultisol : Vermicompost : Sand (2:1:1)), M4 (Ultisol : Vermicompost : Sand (2:2:1))and the second factor is biofertilizer consist of three level, K1 (100 KG/HA), K2 (200 KG/ha), K3(300 kg/ha). The parameter observed were plant height, tiller number, leaf number, fresh weightbulb per sample, fresh weight bulb per plot, dry weight bulb per sample, dry weight bulb perplot,and clove number per sample. The result showed that plants media treatments influentialsignificantly to parameters : plant height 4-7 week after plant,tiller number 6-7 week after plant,leaf number 3-7 week after plant, fresh weight bulb per sample, fresh weight bulb per plot, and wasnot significantly to parameter plant height 2-3 week after plant, tiller number 2-5 week after plant,leaf number 2 week after plant and clove number per sample. The aplication of biofertilizer andinteraction of plant media and biofertilizer was not significantly to all parameter.Keywords : biofertilizer, plants media, shallot

UJI DAYA SIMPAN DAN VIABILITAS BENIH KARET (Hevea brasiliensis Muell-Arg.) TANPA CANGKANG TERHADAP KONSENTRASI LARUTAN OSMOTIK DAN LAMA PENGERINGAN

AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

The seed of rubber is a kind of recalcitrant seeds which is have a low shelf life with the result thatquickly in deterioration so it needed a special treatment in storage period to maintain the seedviability. By using the osmotic solution concentration of Polyethylene Glycol 6000 and seed dryingwhich is very helpful in recalcitrant seed storage due to it has osmotic cell potential to restrict thealteration of water and oxygen capacity in seed. This research aimed to get the optimal of osmoticsolution concentrations and drying time to maintain the seed viability of Rubber. It conducted sinceApril until June 2013 in Laboratory of Plant Breeding, Agriculture Faculty, University of SumateraUtara. The research uses the completely randomized design with two treatments as factor and threereplications. The first factor is osmotic solution concentration of PEG 6000 of PEG 6000 : 0, 15,30, and 45 (% w/v) and other factor is drying period : 0, 4, 8, 12, 16 (hours). The results showed theosmotic solution concentration of PEG 6000 30% w/v significantly in seed growth rateafter storageperiod 3,49% etmal and maximum potential growth 64,22%. 4 hours drying period is the best inseed growth rateup to 3,49 3,89% etmalwith 66,94% maximum potential growth. The osmoticsolution concentrations of PEG 6000 30% w/v and 4-hour drying period is the best combination oftreatments which can seed growth rate up to 3,95% etmal with 66,67% maximum potential growth.Keywords: Rubber seed, osmotic solution concentrations of PEG 6000, drying, seed storage.

PENGARUH CURAH HUJAN DAN HARI HUJAN TERHADAP PRODUKSI KELAPA SAWIT BERUMUR 5, 10 DAN 15 TAHUN DI KEBUN BEGERPANG ESTATE PT.PP LONDON SUMATRA INDONESIA, Tbk

AGROEKOTEKNOLOGI Vol 2, No 3 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

One of the determining factors of water supply for oil palm which does not use irigation system israin fall. Water supply is the main factor that cope production rate of oil palm. Water supply for oilpalm in field is obtained from rain fall. This research is done in PT.PP London Sumatra Indonesia,Tbk Begerpang Estate plantations, North Sumatera Province, Medan from June to September 2013.This research used secondary data available in company administration. Secondary data for analysisneed consists of component production data as total bunches, average bunches weight, total ofproductive trees, loose fruit weight; production of fresh fruit bunch (FFB); rain fall data and rainday monthly in 2008, 2009 and 2010 on 6 divisions. Analysis method used is double linierregression and correlation analysis. Model tested by classic asumption consists of normality test,heteroskedasticity test, multicollinearity, and autocorellations test by using statistic softwareSPSS.v.17 for windows. The regression analysis shows that rain fall and rain day variables havesignificant influence with alpha 5% (Sig < α 0,05) in FFB production aged 5 years. F-value is5,235 with significant level 0,031. Coeffisien determination obtained is 53,8%. It means 53,8%variance of FFB production can be explained by variables used in this research and the rest 46,2% isexplained by other variables which are excluded. Linier regression model on 5 years is Y = 145,982+ 1,451 rain fall – 27,005 rain day + E. Corelation result on 5, 10 and 15 years with two-tailedanalysis with significant level 1% shows that rain fall and rain day have tight, significant, and samedirection relationship. Corelation value of rain fall and rain day are 0,892; 0,887; and 0,855 eachwith significant level 0,000 (Sig < α 0,01).Keywords: rain fall, rain day, FFB production.

Tanggap Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) Pada Dosis Pupuk Kalium dan Frekwensi Pembumbunan

AGROEKOTEKNOLOGI Vol 2, No 4 (2014)
Publisher : Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan

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Abstract

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.