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KAJIAN SIFAT KIMIA TANAH, PERTUMBUHAN DAN PRODUKSI PADI PADA TANAH SULFAT MASAM POTENSIAL AKIBAT PEMBERIAN KOMPOS TANDAN KOSONG KELAPA SAWIT DAN PUPUK SP-36 Sri Wahyuni Tambunan; Fauzi Fauzi; Marpaung Purba
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research is to study the effect of empty palm oil bunch compost (EPOBC) andthe application of phosphorus fertilizer of SP-36 on chemical characteristic of acid sulphate soils,rice growth and production (Oryza sativa L.). This study used a randomized block design factorial,with 2 factors: factor 1: compost EPOBC treatment (B) which consist of: B0 = 0 ton ha-1 (0g EPOBC/pot) ; B1 = 10 ton ha-1 (40 g EPOBC/pot); B2 = 20 ton ha-1 (80 g EPOBC/pot);B3 = 30 ton ha-1 (120 g EPOBC/pot) . Factor 2: fertilizer phosphorus (P) which consist of : P0 = 0kg SP-36 ha-1 (0 g SP-36/pot); P1 = ½ dose (1/2 x 135), advice equal with 0,27 g SP-36/pot; P2 = 1,0dose (1 x 135), advice equal with 0,54 g SP-36/pot; P3 = 1 ½ dose (1 1/2 x 135), advice equal with0,81 g SP-36/pot. The results of this research showed that EPOBC treatment significantly affectedsoil pH and Fe2+ reduction, C-organic, seed total and dry weight of rice. While the application ofSP-36 fertilizer non significantly affected P-available and height of plants. Combination betweenEPOBC and fertilizer SP-36 significantly increased seed total and dry weight of rice.Key words: acid sulphate soil, EPOBC, SP-36,rice

UJI EFIKASI AGENS HAYATI TERHADAP PENYAKIT HAWAR DAUN BAKTERI (Xanthomonas oryzae pv. oryzae) PADA BEBERAPA VARIETAS PADI SAWAH (Oryza sativa) Syahrial Damanik; Mukhtar Iskandar Pinem; Yuswani Pengestiningsih
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Syahrial Damanik, Biological agents efficacy test to blight leaf disease Xanthomonas oryzae pv.oryzae on some rice varieties (Oryza sativa). The aim of this research was to find suitablebiological agens to inhibit attack from blight leaf disease and also to discover most resistentvarieties to wants Leaf Blight Disease.This research was conducted using randomized completelydesign (RCD) factorial consisting of two treatment factors and three replications. The first factornamely T0, T1, T2 (Control, Pseudomonas fluorescens, Trichoderma sp with Pseudomonasfluorescens) the second factor’s variety V1, V2, V3 (Inpari 13, Mekongga, Ciherang).The result showed that on Biological agents treatment, the lowest disease intensity occured atTrichoderma sp with Pseudomonas fluorescens of 4.74 % and highest intensity disease occured atControl for 23.14 %. Varieties treatment had the lowest disease intensity in Ciherang for 7.79 %and highest disease intensity in Inpari 13 for 19.06 %. Interaction between biological agents andvarieties had the lowest disease intensity in Trichoderma sp with P. fluorescens and Inpari 13 for3.77 % and highest in Control and Mekongga for 33.97 %. The highest production in biologicalagents treatment occured in Trichoderma sp with P. fluorescens for 7.46 tons/ha and the lowest inControl for 3.63 tons/ha. The highest production on varieties treatment occured in Ciherang for 6.40tons/ha and the lowest in Inpari 13 for 4.98 tons/ha.Keywords : biological agents, varieties, Xanthomonas oryzae pv. oryzae, rice.

TANGGAP PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS KEDELAI (Glycine max L.) TERHADAP PERBANDINGAN KOMPOSISI PUPUK Teguh Satwiko; Ratna Rosanty Lahay; B. Sengli J. Damanik
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The use of organic fertilizer is needed to replace the role of chemical fertilizers, preserving theenvironment and for sustainable agriculture. The study was conducted in Tanjung Sari, KecamatanMedan Selayang. The research used a Randomized Block Design with two factors. The first factoris varieties (Argomulyo, Burangrang and Anjasmoro). The second factor is the ratio of chemicalfertilizers and vermicompost, which include : chemical fertilizer 0% + vermicompost 100%,chemical fertilizer 25% + vermicompost 75%, chemical fertilizer 50% + vermicompost 50%,chemical fertilizer 25% + vermicompost 75%, and chemical 100% + vermicompost 0%. The resultshowed that Varieties significantly affected the parameters amount of produtive branch, weight ofdry plant, weight of dry root, the number of pods per plant, the number of filled pods per plant,weight of dry seed per sample,and weight of 100 seeds. Varieties did not significantly affect theparameters weight of dry seed per plot. The composition ratio of fertilizers significantly affectedthe parameters weight of dry root, weight of dry seed per sample,and weight of 100 seeds. Inaddition, the ratio of chemical fertilizers and vermicompost did not significantly affect theparameters amount of produtive branch, weight of dry plant, the number of pods per plant, thenumber of filled pods per plant,and weight of dry seed per plot. The interaction between varietiesand the ratio of chemical fertilizers and vermicompost did not significantly affected for allparameters.Key words : varieties, chemical fertilizers, vermicompost, soybeanABSTRAK

KARAKTER VEGETATIF DAN GENERATIF BEBERAPA VARIETAS PADI (oryza sativa L.) TOLERAN ALUMINIUM Wiwik Maya Sari; Eva Sartini Bayu; Syafrudin Ilyas Syafrudin Ilyas
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Aluminium (Al) tolerant mechanism in rice has not been fully understood. The objective of thisresearch was to find the tolerant rice aluminum, and to study the vegetative and generativecharacters of Aluminum stress. Five days old of rice seedlings were growned on minimum culturesolution containing 15 ppm of Al for 72 hours and then transferred to non Al-treated culturesolution for 48 hours. The selected seedlings were measured based on Root Re-Growth (RRG)value. RRG value was determined based on after Al-stress. This research was held in theGreenhouse at Faculty of Agriculture, University of North Sumatera Utara, Medan, from May untilOctober 2012, using latin square design with treatment that were rice varieties: Hawarabunar,Ciherang, Inpari 1, Mekongga, Cibogo dan Cigelis. From the observations of RRG value obtainedthere were three tolerant rice varieties that were Hawarabunar, Ciherang and Mekongga, and threesensitive rice varieties that were Inpari 1, Cibogo dan Cigelis.Data analysis showed that varietieswith Al-treated were significantly different the plant height, the number of tillers, the vegetativestage, the number of productive tiller, the flower initation, the panicle length, the flag leaf length,the time of harvesting and the 1000 grain weight. Varieties were not significantly different thegenerative stage time, the number of empty grain per panicle, the number of panicle branches, andgrain weight per panicle.Keywords : rice, Al tolerant, Root Re-Growth

UJI EFEKTIFITAS Beauveria basianna dan Bacillus thuringiensis TERHADAP ULAT API (Setothosea asigna Eeck, Lepidoptera, Limacodidae) DI LABORATORIUM Boy Tarigan Boy Tarigan; Syahrial Syahrial; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTPalm oil tree is the most productif than the other nabaty oil plant. Setothosea is the primaryleaf eaten on palm oil tree. Test Effectiveness of Bacillus thuringiensis and Beauveriabasianna Caterpillars Against Fire Setothosea asigna Eecke in laboratory. The research wasconducted at the Laboratory of Plant Pests Faculty of Agriculture, University of NorthSumatra, Medan with altitude ± 32 meters above sea level. The research method used is nonCompletely Randomized Design factorial. The parameters in the observed percentagemortality of larvae of the caterpillar is Setothosea asigna fire. The results show thepercentage of mortality of silkworm larvae using Beauveria basianna flames were highest intreatment by 100% I3 is the observation of the IV, percentage mortality of silkworm larvaeusing Bacillus thuringiensis flames were highest in I6 treatment was 100% in the observationof the IV.Keywords : test effectiveness,Caterpillars Against Fire, Laboratory

PENGARUH VARIETAS DAN BAHAN ORGANIK YANG BERBEDA TERHADAP BOBOT 1000 BUTIR DAN BIOMASSA PADI SAWAH IP 400 PADA MUSIM TANAM I Daniel Siregar; Posma Marbun; Purba Marpaung
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The objective of this study is to determine the effect of rice varieties and different organic matter ofrice fields in one growing season to the 1000 grain weight and paddy rice biomass IP 400. Theresearch was conducted at paddy fields located at UPT Main Rice Seed Big of Pasar MiringTanjung Morawa Subdistrict, Deli Serdang District. This study uses a randomized block design(RBD) with two factors, namely rice varieties Inpari I and Ciherang and organic matter. Eachtreatment consisted of non-organic material, composted straw, cow manure.The results showed thatthe use of varieties of very significant effect on the dry weight of 1000 grain rice planting season IP400 I, and the very significant effect on rice biomass IP 400. Treatment of organic material verysignificant effect on the dry weight of 1000 grain rice IP 400 in the first growing season, and a verysignificant effect terhdap rice biomass IP 400. Interaction between rice varieties and application oforganic manures no significant effect on the dry weight of 1000 grains and rice biomasaa IP 400.Keywords: IP 400, 1000 grain weight, biomass rice

PENGARUH VARIETAS DAN BAHAN ORGANIK TERHADAP JUMLAH ANAKAN DAN PRODUKSI PADI SAWAH IP 400 FASE VEGETATIF MUSIM TANAM I Simbolon, Timbul; Marbun, Posma; Fauzi, Fauzi
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.v1i4.4465

This research was aimed to determine whether composting organic materials and varieties of riceplants of different IP 400 can reduce the rate of air temperature in rice vegetative phase and also toknow which varieties or organic matter are likely to be better in reducing the rate of air temperatureand increase rice production IP 400. This research was conducted in paddy fields and DevelopmentResearch Institute, Village Market District Leaning Fence Merbau Deli Serdang (30 29 '51.33 "Nand 980 54' 19.87" E) with a height of 30 meters above sea level where conducted from February2012 to complete. This research used a randomized block design factorial with six combinations oftreatments and three replications thus obtained eighteen experimental unit. Treatment consists ofV1B0 (Inpari 1 + Without Organic Materials), V1B1 (Inpari 1 + straw compost 9 kg), V1B2 (Inpari 1+ Cow Manure 9 kg), V2B0 (Ciherang + Without Organic Materials), V2B1 (Ciherang + Compoststraw 9 kg), V2B2 (Ciherang + Cow manure 9 kg). The results of this research indicate varieties ofrice IP 400 and composted organic materials that have been able to suppress the air temperature andincrease rice production IP 400, but did not suppress emission rate at 35 days after planting.Keywords: IP 400, cow manure, straw compost, air temperature

UJI EFIKASI AGENS HAYATI TERHADAP PENYAKIT HAWAR DAUN BAKTERI (Xanthomonas oryzae pv. oryzae) PADA BEBERAPA VARIETAS PADI SAWAH (Oryza sativa) Damanik, Syahrial; Pinem, Mukhtar Iskandar; Pengestiningsih, Yuswani
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.v1i4.4509

Syahrial Damanik, Biological agents efficacy test to blight leaf disease Xanthomonas oryzae pv.oryzae on some rice varieties (Oryza sativa). The aim of this research was to find suitablebiological agens to inhibit attack from blight leaf disease and also to discover most resistentvarieties to wants Leaf Blight Disease.This research was conducted using randomized completelydesign (RCD) factorial consisting of two treatment factors and three replications. The first factornamely T0, T1, T2 (Control, Pseudomonas fluorescens, Trichoderma sp with Pseudomonasfluorescens) the second factor’s variety V1, V2, V3 (Inpari 13, Mekongga, Ciherang).The result showed that on Biological agents treatment, the lowest disease intensity occured atTrichoderma sp with Pseudomonas fluorescens of 4.74 % and highest intensity disease occured atControl for 23.14 %. Varieties treatment had the lowest disease intensity in Ciherang for 7.79 %and highest disease intensity in Inpari 13 for 19.06 %. Interaction between biological agents andvarieties had the lowest disease intensity in Trichoderma sp with P. fluorescens and Inpari 13 for3.77 % and highest in Control and Mekongga for 33.97 %. The highest production in biologicalagents treatment occured in Trichoderma sp with P. fluorescens for 7.46 tons/ha and the lowest inControl for 3.63 tons/ha. The highest production on varieties treatment occured in Ciherang for 6.40tons/ha and the lowest in Inpari 13 for 4.98 tons/ha.Keywords : biological agents, varieties, Xanthomonas oryzae pv. oryzae, rice.

PEMBERIAN BAHAN SILIKA PADA TANAH SAWAH BERKADAR P TOTAL TINGGI UNTUK MEMPERBAIKI KETERSEDIAAN P DAN Si TANAH, PERTUMBUHAN DAN PRODUKSI PADI (Oryza sativa L.) Orinda Yohana; Hamidah Hanum; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

This study aims to know the effect of Si on the availability of soil phosphate and silica, rice growthand production in the paddys soil with high total P . The research was conducted on the greenhouseand on the laboratory soil chemistry, Faculty of Agriculture, University of North Sumatra, Medan.The soil which used from the paddys soil in Tanjung Mulia Hilir, Medan Deli which has the hightotal P. The experiment was carried out using non-factorial randomized block design with treatmentcontrol, 3.4 g silica agrosil fertilizer/ plant, 4.8 g silica agrosil fertilizer/ plant, husk ash 3.4 g/ plantand 4.8 g husk ash / plant. The Analysis of data used the analysis of variance and contrast test.Experimental results showed that silica materials has significant effect on soil pH, maximum tillernumber and dry weight of grain, but not significant effect on available P, available Si, P – uptake, Si– Uptake, Plant Height, and Plant Dry Weight. Husk ask and Agrosil silica showed the same effectin the soil chemistry nature that’s the soil phosphate and silica availability.Keyword : silica material, paddy Soil, P, Si – uptake, rice growth and production

PENGARUH INSEKTISIDA BOTANI BERBENTUK SERBUK BIJI TERHADAP HAMA KUMBANG Callosobruchus chinensis L. (Coleoptera: Bruchidae) PADA BENIH KACANG HIJAU Putri Mustika Sari, Sari; Yuswani Pangestiningsih; Syahrial Oemry
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The effect of botanical insecticides seeds powder againts pest of kumbangCallosobruchus chinensis L. (coleoptera: bruchidae) for the green bean seeds.The objective of this research was to knew the effectiveness of some botanical insecticides onmortality C. chinensis, and green bean seeds weight decrease. The experiment was conductedin the Laboratory Plant Pests, Faculty of Agriculture, University of Sumatra Utara, Medan.Using a completely randomized design (RAL) non factorial with 10 treatments wereF0 (control), F1 (5gr jatropha seeds), F2 (10gr jatropha seeds), F3 (15gr jatropha seeds),F4 (5gr soursop seeds), F5 (10gr soursop seeds), F6 (15gr soursop seeds),F7 (5gr noni seeds), F8 (10gr noni seeds) and F9 (15gr noni seeds) per 500gr of bean greenseeds with three replications. The results showed that 15gr jatropha seeds is the mosteffective in increased mortality imago C. chinensis (93.33%), and green bean seeds weightdecreased as low as (0.37%). The followed by treatments of 15gr soursop seeds, 10grjatropha seeds, 10gr soursop seeds, and 15gr noni seeds, while treatments of5gr jatropha seeds, 5gr soursop seeds, 5gr and 10gr noni seeds less effective.Keywords : Callosobruchus chinensis, botanical insecticides, green bean seeds.

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