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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

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Articles 943 Documents

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PERTUMBUHAN DAN PRODUKSI KACANG TANAH ( Arachis hypogaea L.) PADA BEBERAPA PENGOLAHAN TANAH INSEPTISOL DAN PEMBERIANPUPUK KASCING Muhammad Rizqi Habiby; Sengli Damanik; Jonathan Ginting
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Peanut is one of the source of protein for human foods. Production of peanutscan be increase by land cultivation and giving vermicompost. This research aimed toevaluate the effect of land cultivation and giving vermicompost for growth andproduction of peanuts. The study was conducted in Tanjung Sari, Kecamatan MedanSelayang. This research used split plot design, with two factors. First factor is landcultivation with 4 levels (traditional tillage with two stage of cultivation, traditionaltillage with one stage of cultivation, minimum tillage, and no-tillage).The secondfactor is the ratio of vermicompost and chemical fertilizers, whith 5 levels(chemical 100%,vermicompost 100%, vermicompost 75% + chemical fertilizer25%, vermicompost 50% + chemical fertilizer 50%, and vermicompost 25% +chemical fertilizer 75%. The result showed that land cultivation significantlyaffected the parameters the number of ginofor 2 and 3 month after planting(MAP), the number of filled pod, 100 seed weigth, production per sample andproduction per plot. The ratio of vermicompost and chemical fertilizerssignificantly affected the parameters of the number of branch 1 and 2 MAP. Theinteraction between land cultivation and the ratio of vermicompost and chemicalfertilizers did not significantly affected for all parameters.Keywords : land cultivation, vermicompost, peanuts.

TANGGAPPERTUMBUHANSTUMP MATA TIDURKARET TERHADAP KOMPOSISI MEDIA TANAM DAN PEMUPUKAN NPK ORGANIK Mahfriza Fansuri Mahfriza FansuriQ; Irsa Irsa; Nini Rahmawati
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The aim of the research is to know the response of rubber budded stump growth of the compositionsof growing media and organic NPK fertilization. It was conducted at Kuala Bingai Village, Stabat,regency of Langkat about 15 m sea level on May to August 2012 by using arandomized blockdesignfactorialtwofactorsthat is organic NPK fertilization (0, 50, 100, 150 g/polybag) and thecomposition of growing media (subsoil, subsoil+compost of blotong sugar cane andsubsoil+compost of blotong sugar cane+sand). The parameters observed were percentage stump ofshoot, speed of eye stump out, shoot lenght,number of leaves, shoot grith, percentage of stump oneumbrella leaf’s and total leaves width.The result of research showed that compositions of growthmedia and organic NPK fertilization showed no significant effects for all parameters. Interaction ofboth treatments influenced significantly on shoot lenght 8 and 12 MST and shooth grith 6-10 MST.Key words : organic NPK, growing media, rubber budded stump

RESPONS PERTUMBUHAN BIBIT KAKAO TERHADAP PEMBERIAN KOMPOS SAMPAH KOTA DAN PUPUK P Marisi Untung Hutahaean; Balonggu Siagian; Lisa Mawarni
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The response of cocoa seedlings growth for giving municipal waste compost and P fertilizer. Thedesign of the experiment was randomized block design arranged in factorial with two factors. Thefirst factor is municipal waste compost, Subsoil ultisol 5 kg + municipal waste compost 0 kg,Subsoil ultisol 3,75 kg + municipal waste compost 1,25 kg, Subsoil ultisol 2,5 kg + municipal wastecompost 2,5 kg, Subsoil ultisol 1,25 kg + municipal waste compost 3,75 kg. The second factorpresent of Phosphat Fertilizer, 0 g/polibag, 2 g/polibag, 4 g/polibag, 6 g/polibag. The Parameterobserved includes plant hight (cm), number leafs (sheet), diameter of stem (mm), total of broad leaf(cm2), fresh and dry weight of crown (g), fresh and dry weight of root (g).The result of reseach showed that municipal waste compost influential significantly on plantheight, number of leafs, diameter of stem, total of broad leaf, fresh and dry weight of crown, freshand dry weight of root. P fertilizer was significantly on total of broad leaf. Interaction between ofmunicipal waste compost and P fertilizer was not significantly to all parameters.Key words : cacao, compost, phosphat

RESPONS PERTUMBUHAN TEMBAKAU DELI (Nicotiana tabaccum (L.)) PADA BEBERAPA JENIS KAPUR DAN TANAH DI SUMATERA UTARA M. Silaban, Martua; Ginting, Jonis; Barus, Asil
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v1i4.4398

Response of growth of deli tobacco (Nicotiana tabaccum (L.)) on some kind of lime and soil typesin North Sumatera. Deli tobacco is variety of tobacco that is used as world top quality wrapper ofcigar . But, in last years production of deli tobacco had been decreasing because of landdegradation. Consequently, it is important to develop deli tobacco plantation to another soil typesthat is combine by giving some kind of lime. The aim of this research was to examine growth ofdeli tobacco (Nicotiana tabaccum (L.)) on some kind of lime and soil types in Noerth Sumatera.The research was conducted in the land of the Research Center of Deli Tobacco (BPTD) SampaliPTPN II, starting from February to May 2012, using a randomized block design (RBD) factorialwith two factors and three replications . The first factor is soil types (alluvial, andosol, hidromorf,ultisol). The second factor is the kind of lime (dolomite, calsit, kaptan). The results showed thatsoil types significantly affect on plant height, diameter of stem, number of leave, thick leaf sand,1 foot thick leaves, long leaves sand, 1 foot long leaves, leaf width sand, and 1 foot wide leaves.Kind of Lime and the interaction between soil and lime is not significantly affect for all parameterobserved.Keywords: soil, lime, Tobacco Deli.

SURVEI DAN PEMETAAN STATUS FOSFAT LAHAN SAWAH PADA DAERAH IRIGASI BAHAL GAJAH/TIGA BOLON KECAMATAN SIDAMANIK KABUPATEN SIMALUNGUN Meilissa Damayanti Lumban Gaol; Supriadi Supriadi; Mariani Sembiring
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Survey and mapping phosphorus status on irrigated rice field at Bahal Gajah and Tiga Bolonvillage in Sidamanik Subdistrict. This research purpose to make a map phosphate status on wet ricefield in irrigation area Bahal Gajah/Tiga Bolon. The research start to do on May until December2012. Method of sample take use free grid survey method with semi detail survey scale. Result ofanalysis process using regreation method, with Geografis Information System (GIS) program.Parameter that analysis in laboratory is phosphate available and phosphate total. The result ofresearch showed that phosphate available divided by 3 status such as; medium (6,087 ha), high(136,005 ha), and highest (286,101 ha). Phosphate total divided by 3 status such as; medium(48,393 ha), high (109,445 ha), and highest (269,263 ha).Key words: mapping, phosphorus

TINGKAT SERANGAN ULAT KANTONG Metisa plana Walker (Lepidoptera: Psychidae) TERHADAP UMUR TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KEBUN MATAPAO PT. SOCFIN INDONESIA Nugraha Sembiring Nugraha Sembiring; Mena Uly Tarigan; Lisnawit Lisnawit
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The attack rate of bagworms Metisa plana Walker (Lepidoptera: Psychidae) on the age of oil palm(Elaeis guineensis Jacq.) at Matapao Plantation, PT Socfin Indonesia. Under the supervision ofMena Uly Tarigan as the chairperson and Lisnawita as the member. The aim of the research was toknow the attack rate of bagworms (Metisa plana Walker) on the age of oil palm at the planting areaof TBM (pre-producing plant) and TM (post-producing plant). The research was conducted atMatapao Plantation, PT Socfin Indonesia, Teluk Mengkudu Subistrict, Serdang Bedagai Districtwith the altitude of ± 20 meters from the sea level. The research used a survey method withdiagonal samples. The results of the research showed that the attack rate of bagworms was higheron the TBM than on TM. The highest number of pests was found at block 27 in the planting year of2011 with 119 pests, while the highest rate of attack by bagworms (19.758%) was found at block 28in the planting year of 2009. The highest attack of bagworms was found in sample 50 at block 27 inthe planting year of 2011 with 15 pests in each frond. The highest intensity of bagworms’ attack(50%) was in sample 50 at block 27 in the planting year of 201, and it was categorized as amoderate attack.Keywords: bagworms Metisa plana, oil palm, the age of oil palm

UJI ANTAGONISME ISOLAT MUTAN Sclerotium rolfsii SACC. TERHADAP ISOLAT TIPE LIAR Sclerotium rolfsii SACC. DI LABORATORIUM Nurainun Nasution; Hasanuddi Hasanuddi; Darma Bakti Darma Bakti
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Antagonism test mutated isolate of Sclerotium rolfsii Sacc. against wild type isolate ofSclerotium rolfsii Sacc. in laboratory. This research aims to determine ability from mutated isolateof S. rolfsii to inhibit wild type isolate of S. rolfsii’s growth in laboratory. It was conducted in PlantPathology Laboratory, Faculty of Agriculture, University of Sumatra Utara, Medan from Septemberuntil November 2012. It was done by using Completely Randomized Design Non Factorial with 7treatments and 3 replications. This research’s result showed that highest percentage of inhibitingzones contained at 20 and 25 minutes UV irradiated isolate (M4 and M5) at 63.66 % and 60.95 %and the lowest were at 30 and 15 minutes UV irradiated isolate (M6 and M3) at 52.80 % and55.17 %. Macroschopic of S. rolfsii experience of the change at 15 and 30 minutes UV irradiatedisolate (M3 and M6) were in the form of colony more dense and compact, myselium like cotton andhyphae in the form of refinement. The highest diametre from mutated isolate of S. rolfsii containedat 20 minutes UV irradiated isolate (M4) at 6.63 cm and the lowest were at 30 minutes UVirradiated isolate (M6) at 4.76 cm. The highest wide of growth from mutated isolate of S. rolfsiicontained at 20 minutes UV irradiated isolate (M4) at 34.15 cm2 and the lowest were at 30 minutesUV irradiated isolate (M6) at 18.54 cm2.Keywords: S. rolfsii, antagonism, pathogenecity, sclerotia.

RESPONS PERTUMBUHAN BIBIT KAKAO TERHADAP VERMIKOMPOS DAN PUPUK P Onny Suriyono Silaen Onny Suriyono Silaen Onny Suriyono Silaen; Ferry Ezra Sitepu; Balonggu Siagian
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Response of Cacao (Theobroma cacao L.) Seedlings Growth on Application of Vermicompost andP Fertilizer. The research was conducted to determine response of cacao seedlings growth onapplication of vermicompost and P fertilizer. The research carried out at Faculty of AgricultureUSU’s Experiment Land with a height of 25 metre above sea level on August until November 2012by using Randomized Block Design of two factors which is the first factors were vermicompost(0%, 25%, 50%, 75%) and the second factor were P fertilizer (0, 2, 4, 6 g/plant). The parametersobserved were seedling height, leaf number, stem diameter, total of leaf area, seedling wet weight,seedling dry weight, root wet weight, root dry weight and shoot root ratio. The results showed thatvermicompost has significant effects on seedling height, leaf number and seedling dry weight. Theapplication of P fertilizer and interaction of them had no significant effects on all parametersobserved.Key words : vermicompost, phosphat, cacao

PENGARUH PERENDAMAN BENIH KAKAO DALAM AIR KELAPA DAN PEMBERIAN PUPUK NPKMg (15-15-6-4) TERHADAP PERTUMBUHAN BIBIT KAKAO ( Theobroma cacao L. ) Puji Setiawan Puji Setiawan; Balonggu Siagian; Jonatan Ginting, Jonatan Ginting,
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Coconut water is good in increasing the plant’s growth because it containsfitohormon and several growth vitamins. The right dosage of NPKMg fertilizationcan maximize the growth of cacao seedling. This research was conducted in desaTanjung Selamat kecamatan Medan Sunggal, start on January 2012 and end onMay 2012. The design used was a factorial randomized block design with twotreatment factors. The first factor is the duration of soaking in coconut water in 4stages, which are K0 (0 hour), K1 (6 hours), K2 (12 hours), dan K3 (18 hours).The second factor are the application of NPKMg fertilizer (15:15:6:4) in 4 stages:which are: P0 (0 g), P1 (7 g), P2 (14 g), P3 (21 g). The soaking of cocoa seeds incoconut water has significant effect on plant height and number of leaves.Interaction between soaking of cocoa seeds in coconut water and NPKMgfertilizer application has no significant effect on all parameters.Key words : coconut water, NPKMg fertilizer, cocoa, growth and production

EFEKTIVITAS Aspergillus niger DAN Penicillium sp. DALAM MENINGKATKAN KETERSEDIAAN FOSFAT DAN PERTUMBUHAN TANAMAN JAGUNG PADA TANAH ANDISO Putri Juli Artha; Hardy Guchi Hardy Guchi; Posma Marbun Posma Marbun
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

This research topic is the effectiveness of Aspergillus niger and Penicillium sp. in increasingphosphate and growth of corn on Andisol. The objective is to compare the effect of Aspergillusniger application with Penicillium sp. in increasing phosphate and corn growth on Andisol.Andisols material was taken from Kuta Rakyat Village, Namanteran Subdistrict, Karo District. Thisresearch was conducted at green house, Soil Biology Laboratory, and Soil Fertility and ChemistryLaboratory. The design used was non factorial blocky randomized which consists of seventreatments and four replications, they are M0 (kontrol), MA1 (Aspergillus niger 8 mL), MA2(Aspergillus niger 17 mL), MA3 (Aspergillus niger 25 mL), MP4 (Penicillium sp. 10 mL), MP5(Penicillium sp. 18 mL), MP6 (Penicillium sp. 30 mL). Parameters measured in this experiment aresoil pH, soil available-P, plant P absorption, shoot dry weights, and root dry weights.The results of this research showed that the application of Aspergillus niger and Penicillium sp. nonsignificantly affected available P, P-uptake, soil pH, and shoot dry weights, but significantlyaffected root dry weights and diameter of stem.Keywords : aspergillus niger, penicillium sp., Andisols

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