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All Journal Jurnal Pertanian Agros JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality JURNAL AGROTEKNOSAINS
Donatus Dahang
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation

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Pengaruh Pemberian Pupuk Kandang Sapi dan Polysulphate Terhadap Pertumbuhan Dan Hasil Kentang (Solanum tuberosum L.) Sumatera Tarigan; Nani Kitti Sihaloho; Donatus Dahang; Ridwan Ginting
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 6, No 1 (2022): Vol 6 No. 1 Tahun 2022
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v6i1.766

Abstract

Pemberian pupuk yang tepat sangat penting bagi peningkatan produktivitas tanaman pertanian khususnya kentang. Penelitian pengaruh pemberian pupuk kandang sapi dan Polysulphate telah dilaksanakan di Desa Lingga Kecamatan Simpang Empat Kabupaten Karo pada April - Juli 2021. Penelitian menggunakan Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari dua (2) faktor yaitu Faktor I : Pemberian Pupuk organik kandang sapi dengan dengan simbol “ K” yang terdiri dari 4 taraf yaitu K0 = Kontrol, K1 = 25 gr, K2 = 50 gr, K3 = 75 gr, dan K4 = 100 gr, dan Faktor II: Pemberian pupuk Polyshulpate “P” yang terdiri dari 4 taraf perlakuan yaitu : P0 = Kontrol, P1 = 5 gr, P2 = 10 gr, P3 = 15 gr, dan P4 = 20 gr. Hasil penelitian menunjukkan pemberian polyshulpate (10 gr/ P2), pupuk organik kandang sapi 50 gr (K2), dan interaksi K2P3 (50gr pupuk kandang sapi dan 15 gr polyshulpate) merupakan kombinasi optimum untuk pertumbuhan tinggi tanaman kentang. Perlakuan P2 (10 gr) menghasilkan nilai rata-rata pertumbuhan diameter tajuk 33,244 cm danK2 (50 gr) menghasilkan nilai rata-rata pertumbuhan diameter tajuk 32,553 cm.Kombinasi perlakuan K2P2 (pupuk organik kandang sapi 50 gr dan polisulfat 5 gr) merupakan perlakuan optimum yang menghasilkan pertumbuhan rata-rata diameter tajuk sebesar 34,22 cm. Perlakuan P2 (10 gr) menghasilkan nilai rata-rata pertumbuhan lingkaran batang 26,571 mm atau 2,6571 cm dan perlakukan K4 menghasilkan rata-rata 28,226 mm atau 2,8226 cm. Interaksi K3P2 (pupuk organik kandang sapi 75 gr dan polisulfat 50 gr) yang menghasilkan rata-rata pertumbuhan lingkaran batang 30,845 mm atau 3,0845 cm merupakan perlakuan kombinasi yang optimum. Tidak terdapat perbedaan yang signifikan pengaruh factor K dan P terhadap pertumbuhan jumlah daun tanaman kentang sejak 3 mst – 9 mst. Rata-rata pertumbuhan jumlah daun pada 9 mst pengaruh factor P berkisar 101,15-101,6 helai daun, dan pengaruh faktor K 101,15-101,7 helai daun. Perlakuan P1 (polisulfat 5 gr) yang mengasilkan rata-rata produksi per sampel 443,75 gr atau 0,443 kg merupakan perlakuan optimum dalam penelitian ini. Perlakuan K3 (pupuk kandang sapi 75 gr) yang menghasilkan rata-rata produksi per sampel 479,25 gr atau 0,479 merupakan perlakuan optimum. Perlakukan P2 (polisulfat 10 gr) yang menghasilkan produksi kentang per plot 6550 gr atau 6,55 kg. Rata-rata produksi per plot tertinggi ditemukan pada K1 (pupuk kandang 25 gr) yaitu 7210 gr atau 7,21 kg dan terendah K0 4590 gr atau 4,59 kg.
PENGARUH KOMBINASI PUPUK KANDANG AYAM dan PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN dan PRODUKSI TANAMAN BAWANG MERAH (Allium ascalonicum L.) VARIETAS BATU IJO Efron Evantius Sinaga; Donatus Dahang; Sumatera Tarigan
JURNAL AGROTEKNOSAINS Vol 5, No 1 (2021): JURNAL AGROTEKNOSAINS
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v5i1.541

Abstract

This research aims to determine the effect of combination of chicken manures and cow sheds to growth and production batu ijo shallot of varieties. The research was carried out in the field of Horticultural Seed Main Unit Kutagadung Berastagi, Berastagi District, Karo Regency, North Sumatra, in the elevation of ± 1,350 m above sea level. The research was conducted in June 2019 - August 2019. This research used the Non Factorial Randomized Block Design (RBD) method, was aplied: a combination of chicken manures and cow sheds, symbol (K): control (K0), 100% chicken coop (K1), 80% chicken coop + 20% cow shed (K2), 60% chicken coop + 40% cow shed (K3), 40% chicken coop + 60% cow shed (K4), 20% coop chicken + 80% cow shed (K5) and 100% cow shed (K6), seven treatments and four replications. Data obtained were performed analysis of variance with a F test of 5% level. The significant difference (p <0.05), results would be to the DMRT test. The results shownd that the treatment of the combination of chicken manure and cow shed had a significant effect (p <0.05) on the variable growth of plant height, number of leaves, number of tillers, number of tubers, tuber diameter, production per sample, and production per plot. Howere the highest average was found in the treatment of 100% chicken coops (K1) and followed the treatment of 100% cow pens (K6).
PENGARUH PENGGUNAAN DOSIS PUPUK NPK MUTIARA (16 – 16 – 16) dan PUPUK KOMPOS TERHADAP PERTUMBUHAN dan HASIL TANAMAN SAWI (Brassica Juncea L) Rizon Stefan Tarigan; Swati Sembiring; Donatus Dahang
JURNAL AGROTEKNOSAINS Vol 5, No 1 (2021): JURNAL AGROTEKNOSAINS
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v5i1.547

Abstract

This study aims to determine the effect of the use of Mutira NPK fertilizer dosage (16-16-16) and Mabar compost fertilizer on the growth and yield of mustard plants (Brassica juncea L). This research will be conducted in Cingkes, Dolok Silau District, Simalungun Regency, North Sumatra, with an altitude of + 1,150 m above sea level. This research will be conducted in October 2019 - November 2019. This research uses factorial randomized block design (RBD) consisting of 2 treatment factors and 3 replications, namely: factor I with symbol (M) with a dose of M0: 0 gr / plot (control), M1: 18 gr, M2: 36 gr, M3 : 54 gr, and factor II with the symbol (K) with a dose of K0: 0 gr / plot (control), K1: 200 gr, K2: 400 gr, K3: 600 gr. So that obtained 16 treatment and repeated 3 times. Data from the observations were then performed analysis of variance with a F test of 5% level. If there is a significant difference (p <0.05), the test is continued with the DMRT test. The results showed that the treatment of the combination of NPK Mutiara fertilizer (16-16-16) and Mabar compost had a significant effect (p <0.05) on the variable growth of plant height, number of leaves, leaf area, plant wet weight, plant dry weight, diameter hump.
Efek Pupuk Bio-Kimia Realstrong Dan Pupuk Kandang Pada Pertumbuhan Dan Hasil Beta vulgaris L Donatus Dahang; Sri Desi Br. Sinuhaji
JURNAL AGROTEKNOSAINS Vol 3, No 1 (2019): Jurnal Agroteknosains
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v3i1.186

Abstract

The research on effect of manures and biochemical RealStrong fertilizer had been done. The research was conducted at Aji BuharaVillage, Tigapanah Sub- district,Karo Regency,North Sumatra, February to April 2018.The proposed of the study was to see the effects of the fertilizers in growing and producing of Beta vulgaris. Random cluster block design with factorial classic was applied,factor 1; manures: P0: control, P1:chicken’s manures 1, 5 kg/plot, andP2:caw’s manures 1, 5 kg/plot. Factor 2, Biochemical RealStrong fertilizers: R0= control,R1 = 125gr/plot, R2 = 250gr/ plotandR3= 375gr/plot. Results of the study shown that the effect of P1 had given a highest growing i.e 33.88 cm and(R3)34.90 cm. Kinds and dosage of the fertilizers also influence of productions of the plant. The manure P1 had given production to 101.64 g/sampeland biochemical Realstrong R3given production of 3.20 kg/plot
ANALISIS VEGETASI GULMA PADA LADANG BROCCOLI (Brassica oleraceae var.italica l) DI KEBUN PENDIDIKAN UNIVERSITAS QUALITY BERASTAGI Donatus Dahang
JURNAL AGROTEKNOSAINS Vol 2, No 2 (2018): Jurnal Agroteknosains
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v2i2.147

Abstract

An appropriate weed control is one of determining factors of agriculture crops growing. Effective of weeds control technics be dependent on kinds of crops and the weeds. The research of weeds vegetation analyses of cabbages unit land had been carried out in Education Farming Land of Universitas Quality Berastagi for three months, March to May 2017. The quadrangular method was used, by accounting the densities, dominances, frequencies, and important index value each of the weeds. Identification of weeds was done by using plants’ key determination guidance, by comparing the weeds that was discovered in the research location and the guidance, as well as the identically pictures of the weeds in certain references. Results of the research shown, there are 7 weeds were found, kentangan, grintingan, Goletrak beuti (Richardia brasiliensis Gomez), bebandotan (Ageratum conyzoides L), padang teguh (Themede arguens L. Hack), and ubi jalar (ipomea sp). The highest value of SDR (Summed Dominance Ratio) was Grintingan (28%) and the lowest was goletrak beuti (4.7%)
EFEK PUPUK CAIR KALSIUM TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KENTANG (SOLANUM TUBEROSUM L.) Donatus Dahang; Rafael Remit Winardi; Muhammad R.R. Lubis
JURNAL AGROTEKNOSAINS Vol 3, No 2 (2019): Jurnal Agroteknosains
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v3i2.263

Abstract

The research effects of liquid calcium fertilizers on the growing and producing of potatoes (Solanum tuberosum L.) had properly done. The research was carried out on Lau Gumba Village, Berastagi Sub-district, Karo Regency, North Sumatra, December 2018- May 2019. Randomize Block Design with two factors i.e. Faktor I: Concentration of “BF” fertilizer, B0: control, B1: 2, 5 ml/96 ml of water, B2: 5 ml/ 96 ml of water, B3: 7, 5 ml/ 96 ml of water. Factor II: concentration of “BC” fertilizer, C0: control, C1: 1 ml/ 96 ml of water, C2: 2 ml/ 96 ml of water, C3: 3 ml/ 96 ml of water. The results of the study show that the concentration of the liquid calcium fertilizer had significantly impact (p < 0.05) to the growing and the production of tubers. The concentration of B3 (7,5 ml/96 ml of water) and C3 (3 ml/96 ml of water) had highest score 39.4 cm of plants’ height, The concentration of B3 (7, 5 ml/96 ml of water) and C3 (3 ml/96 ml of water) had significant impact to tubers’ weight.
PENGARUH UKURAN BENIH DAN PEMAKAIAN PESTISIDA TERHADAP PERTUMBUHAN DAN HASIL BAWANG MERAH (Allium Ascalonicum L) Wajib Pandia; Sumatera Tarigan; Nani Kitti Sihaloho; Donatus Dahang; Ranto P. A Pintubatu
JURNAL AGROTEKNOSAINS Vol 6, No 2 (2022): JURNAL AGROTEKNOSAINS
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ja.v6i2.914

Abstract

Research on the effect of tuber size and use of pesticides on the growth and yield of red onion (Allium Ascalonicum L) has been carried out at the UPT Seed Parent Horticulture Kutagadung Berastagi, Berastagi District, Karo Regency, from April-June 2021. The aim of the study were to determine the optimal seed size for growth and production of red onion variety of Batu Ijo and to find out how much pesticide dose was recommended.The results showed that the best plant height influenced by tuber size was U3 (N 12) 21.8 cm and U1 20 cm. Meanwhile, the lowest was U0 of 16.2 cm. The average number of plants that were most affected by fusarium disease was P0, the treatment with the least amount of pesticide was 15.5 plants. On the contrary, the lowest average was found at the level of P3 treatment, which was only 1 plant. Disease occurs along with increasing doses of fungicides and pesticides Optimum pesticide levels are h P2 (3 g of fungicide + 3 ml of insecticide) which produced an average number of tubers of 4,208. The highest average number of tubers was found at U3 which was 5.85 and the lowest was at U0 2.56. U3 level (seed tuber size > 15 grams) is the optimum treatment level. The average production per sample is the largest in the treatment effect of U3 which is 35.89 gr and the lowest is at U0 (5.52 gr). The average production per plot of the effect of pesticide level was P3 857.3 g or 0.8573 kg and the lowest was P0 689.1 g or 0.6891 kg. The average production per plot of the effect of seed tuber size level was U3 1507.2 gr or 1.5072 kg and the lowest was U0 194.3 gr or 0.1943 gr. The average production of shallots per plot was found in the U3P3 treatment (1589 gr or 1,589 kg) and the lowest was at U0P0 (159.3 gr).
JAMUR ENDOFITIK Hendersonia sp: AGEN BIOLOGI ALTERNATIF PENGENDALI Ganoderma PADA KELAPA SAWIT (Elaeis guineensis Jacq) Donatus Dahang; Kiki Pagar Sinalsal Mangatasi Munthe
Agros Journal of Agriculture Science Vol 21, No 2 (2019): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.146 KB)

Abstract

Penelitian bertujuan mengetahui pertumbuhan kolonisasi Hendersonia pada bibit kelapa sawit yang berfungsi sebagai agen penghambat perkembangan Ganoderma, sehingga tanaman terhindar dari serangan penyakit Ganorderma. Penelitian dilakukan di PTPN 3 Deli Serdang, Sumatera Utara berupa aplikasi lapangan (2018) dan pengambilan sampel serta pemeriksaan laboratorium  (2019). Aplikasi dilakukan pada 420 bibit, dibagi tiga kelompok perlakuan atau 140 tanaman per kelompok. Pemberian pertama pada bibit umur tiga bulan. Pemberian kedua, ketiga, dan pemeriksaan sampel akar di main nursery umur enam dan sembilan. Data dianalisis secara deskriptif, dengan menghitung persentase kolonisasi pada potongan akar, Uji-t untuk mengetahui perbedaan kolonisasi Hendersonia. Hasil:   terdapat kolonisasi Hendersonia 40 hingga 93.3 persen pada bibit yang diberi perlakuan dan sama sekali tidak ditemukan pada tanaman kontrol. Rata-rata kolonisasi Hendersonia aplikasi ke-3 (150 g per tanaman) sebesar 9,33 lebih tinggi daripada aplikasi ke-2 (100 g per tanaman) 8,33.  Terdapat hubungan signifikan aplikasi ke-2 dengan ke-3 dengan sig 0,032 < 0,05 dan keofisien korelasi 85,1 persen. Namun karena nilai Sig. (2-tailed) > 0.05 maka tidak terdapat perbedaan signifikan antara rata-rata kolonisasi Hendersonia pada aplikasi ke-2 dan ke-3.
Co-Authors Efron Evantius Sinaga Kiki Pagar Sinalsal Mangatasi Munthe Muhammad R.R. Lubis Ranto P. A Pintubatu Ridwan Ginting Rizon Stefan Tarigan Sihaloho, Nani Kitti Sri Desi Br. Sinuhaji Swati Sembiring Tarigan, Sumatera Wajib Pandia