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PENGARUH PEMBERIAN PUPUK BOKASHI DAN NPK (15-15-15) TERHADAP PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS TANAMAN JAGUNG (Zea mays L.) Amri Putra Sembiring; Mbue Kata Bangun; E. Harso Kardhinata
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Corn is the third plant of food after wheat and rice. To increasing of productionneeded to use hybrid and nonhybrid variety, with organic and unorganic fertilizer. Theobjective of this research was to evaluate the influence of bokashi and NPK fertilizer ongrowth and yield some maize varieties.The research was carried out in the UPT Balai BenihInduk Palawija Tanjung Selamat, Deli Serdang. This research used Randomized BlockDesign. Two varieties of maize (Bisma and SHS-4), two levels of bokashi (0 and 180g/plant), and three dosages of NPK (4,2 ; 8,4 ; 16,8 g/plant) were used in the experimentwith three replications. The results showed that varieties were significantly different toparameters plant height and numbers of leaf. Bokashi treatment have no significant effectto all parameters. NPK treatment were significant to parameter numbers of leaf at 6 dan 7week after planted. The combination between varieties and bokashi, varieties dan NPK,bokashi and NPK, and combination of varieties, bokashi and NPK have no significanteffect to all parameters.Key words : Variety, Bokashi, NPK Fertilizer

UJI BEBERAPA VARIETAS PADI SAWAH IRIGASI (Oryza sativa L.) DAN APLIKASI PUPUK KALIUM (KCl) UNTUK MENINGKATKAN PRODUKSI DAN KETAHANAN REBAH Arnen Pasaribu; E Harso Kardhinata; Mbue Kata Bangun
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Arnen Pasaribu, Test of Rice Varieties (Oryza sativa L.) and Fertilizing of Potassium (KCl) toIncrease Production and The Lodging Resistance. Ir. E.H. Kardhinata, M,Sc. as chairman of thecommision of advisors and members Ir. M.K. Bangun, MS. The aim of the research to get ricevarieties and the best dosage of potassium to increase production and the straw strenght.Randomized block designfactorial was used in this research. The first factors were the varieties(Ciherang, Inpari I, Mekongga and Cibogo) and second factors were dossages of potassium (0,50, 100, and 150 kg/ha). The treatments was used three replications. The parameter wichobserved are height of plant, straw strength, straw diameters, dry weight, straw thickness,panicle length, number of productive tillers, percentage of grains per penicle, percentage ofempty grains, the weight of 1000 seeds, weight of grains perplot, lodging index and hertability.The result of this experiment showed that weight of grains Ciherang is better than the others, themaximum dosages of potassium were 85.07 kg/ha; 103.35kg/ha and66.67 kg/ha for Ciherang,Mekongga and Cibogo but relation of potassium Inpari I showed linear positive. Interractions ofvariety and potassium showed significantly diffrence on height of plant at 3 week after plantedand weight of grains.Key words : Rice, Varieties, Potassium fertilizer.

UJI DOSIS DAN CARA APLIKASI BIOFUNGISIDA Bacillus sp. TERHADAP PENYAKIT JAMUR AKAR PUTIH (Rigidoporus lignosus) PADA TANAMAN KARET DI PEMBIBITAN Benny Benny; Lahmuddin Lubis; Syahrial Oemry
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Dose Test and Application Ways Biofungiside Bacillus sp. Against White Root Fungi(Rigidoporus lignosus) on Rubber of Plants in the Nursery. This study aims to determine the effectof dose and ways application biofungiside with of Bacillus sp. against white root fungi(Rigidoporus lignosus) on rubber of plants in the nursery, as well as determine the effect of thewhite root fungi disease on the bud tall of rubber stump. The research was conducted usingRandomized Block Design (RAK) factorial consisting of two factors and 4 replications. The firstfactor, namely P0: control, P1: 20ml/1 liter water, P2: 30ml/1 liter water, P3: 40ml/1 liter water andthe second factor A1 (spraying) and A2 (deeping). The result showed the dose treatment containedthe highest intencity of the attacks on the P0 of 88,54% and lowest in P3 at 20,83%. Waysapplication treatment intensity of the attacks on the A1 of 35,94% and A2 at 54,69%. Interactionsof dose and ways application of the highest intensity of attacks are on P0A2 of 89,59% and lowestin P3A1 at 6,25%. The highest bud tall on dose treatments contained in P3 of 17,78 cm, the lowestin the P0 of 3,52 cm. Ways application treatment in A1 of 14,78 cm and A2 of 9,87 cm.Interactions in the bud tall of dose and ways application was highest in P3A1 of 21,04 cm, thelowest in P0A2 of 3,00 cm.

PERTUMBUHAN DAN PRODUKSI BEBERAPA VARETAS KEDELAI TERHADAP INOKULASI BRADYRHIZOBIUM Milani, Ayu; Rosmayati, Rosmayati; Siregar, Luthfi AM
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i2.1502

Growth and Production of soybean varieties of Bradyrhizobium inoculation. Demand of soybean as a protein source continues to increase, but the increasing of domestic soybean production is still low so it must import from abroad. This is due to the decline in soil fertility and agricultural land conversion to residential. The solution, soybean planting can be done by optimizing the existing land commonly called agricultural intensification. In this research, agricultural intensification is done by adding Bradyrhizobium as biofertilizer. symbiosis between soybean plants with these bacteria can directly fix the nitrogen (N) from the air and can save in the N fertilizer of inorganic form. The objective of the research was to know the responses of the soybean varieties toward Bradyrhizobium inoculation. The split plot design with three replication was used, Bradyrhizobium as main plot and soybean varieties (Anjasmoro, Burangrang, Mitani, Grobogan, Tanggamus, Detam 1, and Detam 2) as sub plot. The result showed that the Bradyrhizobium were not significant affected on all of parameters. The varieties significantly affected on plant height at 5 weeks after planted, flower initiation, the time of harvest, the seed weights per plant, and 100 seeds weight. Interaction between Bradyrhizobium inoculation and soybean varieties were not significant on all of parameters . Keyword : growth, soybean, inoculation, bradyrhizobium, variety

RESPON PERTUMBUHAN DAN PRODUKSI TANAMANJAGUNG (Zea mays L.) VARIETAS HIBRIDA DAN NONHIBRIDAN TERHADAP PEMBERIAN PUPUK POSPAT DAN BOKASHI Eva Sari Ginting; Mbue Kata Bangun; Lollie Agustina Putri
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Response on Growth and Yield of Maize (Zea mays L.) Hybrid and Nonhybrid Varieties by Phosphate Fertilizer and Bokashi Application.The goal of this research is to know the effect of phosphate fertilizer and bokashi to growth and yield maize (Zea mays L.) hybrid and nonhybrid varieties.Therefore, a research had been conducted at experimental field of BBI Palawija, Tanjung Selamat, District of Deli Serdang (± 57 m asl) on May – August 2012. This research was arranged using Randomized Block Design, with the first factor is two maize varieties, Bisma and SHS 4. The second factor is concentrate of Phosphate fertilizer with three degrees, 2 g, 4 g and 6 g. The third factor is bokashi with two degrees, 0 g and 180 g, three replications was used to the treatments. Data were analyzed with ANOVA and continued with HSD. The results showed that varieties were significantly different to plant height, leaf number, male flowering time, female flowering time, harvesting time, kernel number per ear and yield of sample. Phosphate fertilizer were significantly effect to leaf number at 2 weeks planted, harvesting time, kernel number per ear and yield of sample. Bokashi were significantly effect to plant height (at 2, 3, 5 and 7 weeks planted), leaf number (at 2 and 5 weeks planted), male flowering time, female flowering time and number of kernel per ear. The combination between varieties and phosphate fertilizer were not significantly different to whole parameters. The combination between varieties and bokashi were significantly different to plant height (at 7 and 8 weeks planted). The combination between phosphate fertilizer and bokashi were significantly effect to plant height at 2 weeks planted and kernel number per ear. Key words : maize, varieties, phosphate fertilizer, bokashi

DAYA PARASITASI Tetrastichus sp. (Hymenoptera : Eulophidae) PADA PUPA Phragmatoecia castaneae (Lepidoptera : Cossidae) DI LABORATORIUM Dewi L Sidauruk; Maryani Cyccu Tobing; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

The sugarcane stem borer Phragmatoecia castaneae (Lepidoptera : Cossidae) is a key pest on sugarcane crop in North and West Sumatera. The objective of this research was to study the ability of parasitoid Tetrastichus sp. (Hymenoptera : Eulophidae) on pupa Ph. castaneae H. (Lepidoptera : Cossidae) in the laboratory. This research was carried out at Central Research and Development of Sugarcane Crop Sei Semayang PTPN II Medan from May to July 2012. The method of this research used Randomized Complete Design factorial with 2 factors, the first factor is number of parasitoid (0, 4, 5, 6, and 7 pairs) and the second factor is number of Ph. castaneae (1, 3, 5, 7, and 9 pupa) with three replications. The results showed that the highest percentage parasitisation (100%) on pupa Ph. castaneae was found in treatment 1 pupa with 5, 6, 7 pairs Tetrastichus sp. and the lowest percentage (18,50%) on 9 pupa with 4 pairs Tetrastichus sp. This parasitoid need 10-15 seconds into do copulation. Females of Tetrastichus sp. need 20-25 minutes to put egg into its host. The fastest symptoms in the treatment 1 pupa on 3,47 days and 7 pairs Tetrastichus sp. on 4,73 days, and the lowest in the treatment 9 pupa is 4,47 days. The sex ratio of male and female was 1:3,3. Key words : Phragmatoecia castaneae, Tetrastichus sp, ability of parasitoid.

PERTUMBUHAN DAN PRODUKSI BEBERAPA VARETAS KEDELAI TERHADAP INOKULASI BRADYRHIZOBIUM Ayu Milani; Rosmayati Rosmayati; Luthfi A. M. Siregar
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Growth and Production of soybean varieties of Bradyrhizobium inoculation. Demand of soybean as a protein source continues to increase, but the increasing of domestic soybean production is still low so it must import from abroad. This is due to the decline in soil fertility and agricultural land conversion to residential. The solution, soybean planting can be done by optimizing the existing land commonly called agricultural intensification. In this research, agricultural intensification is done by adding Bradyrhizobium as biofertilizer. symbiosis between soybean plants with these bacteria can directly fix the nitrogen (N) from the air and can save in the N fertilizer of inorganic form. The objective of the research was to know the responses of the soybean varieties toward Bradyrhizobium inoculation. The split plot design with three replication was used, Bradyrhizobium as main plot and soybean varieties (Anjasmoro, Burangrang, Mitani, Grobogan, Tanggamus, Detam 1, and Detam 2) as sub plot. The result showed that the Bradyrhizobium were not significant affected on all of parameters. The varieties significantly affected on plant height at 5 weeks after planted, flower initiation, the time of harvest, the seed weights per plant, and 100 seeds weight. Interaction between Bradyrhizobium inoculation and soybean varieties were not significant on all of parameters . Keyword : growth, soybean, inoculation, bradyrhizobium, variety

UJI POTENSI PRODUKSI BEBERAPA GALUR /VARIETAS GANDUM (Triticum aestivum L.) DI DATARAN TINGGI KARO Darma Wirawan; Rosmayati Rosmayati; Lollie Agustina P.Putri
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

The purpose of the research is to obtain strains/varieties of wheat (Triticum aestivum L.) that has high production in Tanah Karo highlands. This research was conducted in the village of Kutagadung, sub district of Berastagi, regency of Karo, North Sumatra Province located at ± 1390 meters altitude above the sea level, from March to June 2012. This research used a randomized block design (RBD) with 10 lines and two varieties of wheat. The experiment results showed that strains/varieties has significant different to plant height, number of productive sapling, length of malai, age of flowering, age of harvest, number of spikelet per plant, number of seed per plant, seed weight per plant, 1000 seed weight and production. The line that has good production is strain G-21 (1.03 kg/m2) that was not significantly different from H-21, Basribey, LAJ3302/2*MO88, Menemen strain and Dewata variety, and strains/varieties of wheat that has less production is strain HP1744 (0.67 kg/m2) that was not significantly different from OASIS/SKAUZ//4*BCN, G-18, Rabe/2*MO88, Alibey strain and Selayar variety. Keywords: lines, variety, Triticum aestivum L.

TANGGAP PERTUMBUHAN DAN PRODUKSI PADI GOGO VARIETAS SITU BAGENDIT TERHADAP PENGOLAHAN TANAH DAN FREKUENSI PENYIANGAN YANG BERBEDA Fadli Heriadi Nasution; Jonathan Ginting; Balonggu Siagian
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

This research is proposed to find out the response of growth and yield of paddy rice situ bagendit variety by tillage of land ground and frequency of weeding. It was conducted at Dinas Pertanian UPT BBI, Tanjung Selamat with a height of 57 m above sea level on March until June 2012 with the soil which has ever tillage before, by using a Randomized Block Design of two factors, they are tillage of land ground (no tillage, two tillage and three tillage) and frequency of weeding (weeding 7 day, 14 day, 21 day and weeding full). The parameters observed were plant’s height, numbers of tiller, numbers of panicle, percentage shell of empty rice, number shell of rice containt, production shell of rice contain, 1000 grain weight, production shell of plot weight dry root and weight dry paddy stem. The results showed that tillage of land ground and frequency of weeding showed significant effects on plant’s height of 6 MST, numbers of tiller of 4 MST, numbers of tiller of 8 MST, percentage shell of empty rice, weight dry root and weight dry paddy stem. Key words : paddy rice, soil tillage , weeding

PERTUMBUHAN DAN PRODUKSI PADI GOGO VARIETAS SITU BAGENDIT PADA JARAK TANAM YANG BERBEDA DAN PEMBERIAN KOMPOS JERAMI Febriyanti Indah Siregar; Jonatan Ginting; T. Irmansyah T. Irmansyah
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

The Growth and Production of Upland Rice Varieties Situ Bagendit In Different Planting Distance and Giving Straw Compost. The aimed of this research to study the growth and production of upland rice varieties Situ Bagendit in different spacing and giving of straw compost. The research was conducted in the field UPT BBI, Tanjung Selamat at an altitude ± 57 meters above sea level since March 2012 until July 2012 using Randomized Block Design (RBD) factorial with two factors, which are the spacing (20 x 20 cm, 20 x 25 cm , 20 x 30 cm) and straw compost (0, 25, 50, 75, 100 g / planting hole). The parameters measured were plant height, number of tillers, straw dry weight, root dry weight, number of panicle, percentage of empty grain, the amount of grain productive, productive grain weight, grain 1000 grain weight, and grain production per plot. The results showed that the treatment of different spacing significantly affect the number of tillers 4-8 weeks after planting and root dry weight. Straw compost treatment significantly affect the number of tillers 4 weeks after planting, the percentage of empty grain and grain production per plot. The interaction between the different spacing and giving straw compost significantly affect grain production per plot. Keywords : upland rice varieties situ bagendit, distance different plant, compost straw

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