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All Journal AGROEKOTEKNOLOGI

B. Sengli J. Damanik

Universitas Sumatera Utara

Author-ID : 3055840

Agriculture, Biological Sciences & Forestry

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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

TANGGAP PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) VARIETAS KUNING TERHADAP PEMBERIAN KOMPOS KASCING DAN PUPUK NPK Natasya Sembiring; B. Sengli J. Damanik; Jonatan Ginting
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Growth Response and Production of Shallot (Allium ascalonicum L.) Kuning Variety WithApplication of Vermicompost and NPK Fertilizer, supervised by B. Sengli J. Damanik andJonatan Ginting. The research was conducted at Pasar 1 street Tanjung Sari, began Juny untilAugust 2012, by using a Randomized Block Design with two factors. First factor is Vermicompostdoses that is 0, 10, 20, and 30 g/plant, the second factor NPK fertilize (16:16:16) doses that is 0;14,1; 28,2; 42,3 and 56,4 g/plot (1m2). The parameters observed were plant height, tiller number,leaf number, fresh weight bulb per sample, dry weight bulb per sample, fresh weight bulb per plot,dry weight bulb per plot,and clove number per sample. The results showed that the treatment ofvermicompost had no significant effects on all parameters observed. The NPK fertilize significantlyinfluenced on dry weight per plot.Key words : vermicompost, NPK, shallot

PERTUMBUHAN DAN PRODUKSI BAWANG MERAH DENGAN PENGOLAHAN TANAH YANG BERBEDA DAN PEMBERIAN PUPUK NPK Romayarni Saragih; B. Sengli J. Damanik; Balonggu Siagian
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Research on title the growth and yield of shallot on different soil tillage and giving NPK fertilizerthis research was to determine growth and yield of Shallot on different soil tillage and Giving NPKfertilizer. This research had been conducted at Farm Resident on street Pasar I number 89, TanjungSari, Medan at ± 25 m asl from May until July 2013 using split plot design with two factor, i.e. SoilTillage (once tillage and twice tillage) and dose of NPK fertilizer (0; 0,6; 1,2; 1,8 and 2,4 g/ plant).Parameter observed were plant height, tillers number per sample, leaves number per sample, clovenumber per sample, wet weight tuber per sample, wet weight tuber per plot, dry weight tuber persample, dry weight tuber per plot and dry weight root per sample. The result showed different soiltillage treatment significantly affected on wet weight tuber per sample and dry weight tuber persample. NPK fertilizer treatment significantly effected on parameters plant height, wet weighttuber per sample, wet weight tuber per plot, dry weight tuber per sample and dry weight tuber perplot. The interaction of two factor not significantly affected all of parameter observed.Keywords : Soil Tillage, NPK Fertilizer, Shallot

Efikasi Beberapa Herbisida Secara Tunggal dan Campuran Terhadap Clidemia hirta (L.) D. Don. Di Perkebunan Kelapa Sawit Abdi Hafiz; Edison Purba; B. Sengli J. Damanik
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

A field experiment was carried out in oil palm plantation to determine the efficacy of selectedherbicides to control Clidemia hirta (L.) D. Don. in oil palm plantations. Treatments were trichlopyr+ aminopylarid 333 + 17 g. ai/ha, trichlopyr + aminopylarid 416,25+21,25 g. ai/ha, trichlopyr +aminopylarid 499,5 + 25,5 g. ai/ha, trichlopyr 536 g. ai/ha, trichlopyr 536 g. ai/ha, paraquat 400 g.ai/ha + methyl metsulfuron 15 g. ai/ha, glyphosate 960 g. ai/ha + trichlopyr 251,25 g. ai/ha,glyphosate + trichlopyr 620 + 98 g. ai/ha and without treatment. The results showed that theefficacy of both single and mixed herbicides significantly affected mortality and percentage of plantdry weight 16 WAT. Herbicide trichlopyr with dose of 536 g. ai/ha was the most effective treatmentto control C. hirta (L.) D. Don. with mortality rate of 97,73%.

Co-Authors Abdi Hafiz Balonggu Siagian Edison Purba Jonatan Ginting Lahay, Ratna Rosanty Natasya Sembiring Romayarni Saragih Teguh Satwiko

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