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Journal of Agrotechnology and Sustainability
Published by Universitas Katolik Santo Thomas
ISSN : -     EISSN : 29861454     DOI : 10.54367
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal AGROSUSTAIN diterbitkan oleh Fakultas Pertanian Universitas Katolik Santo Thomas Medan bekerjasama dengan LPPM Universitas Katolik Santo Thomas. Jurnal ini mengakomodir artikel/karya ilmiah meliputi agronomi, ilmu tanah, hama dan penyakit, teknologi benih, pemuliaan tanaman, pascapanen, dan sosial ekonomi pertanian. Naskah yang dimuat dapat berupa hasil penelitian, telaah/tinjauan literatur, penelitian singkat (short communication) dan gagasan penting dalam bidang pertanian.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 42 Documents
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Respon Pertumbuhan dan Hasil Tanaman Bawang Prei (Allium Fistolusum L.) dengan Dosis Kascing yang Berbeda Sulastri, Yustina Sri; Kusbiantoro, Dedi; Siagian, Welda
AGROSUSTAIN Volume 3 Nomor 1 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v3i1.4625

Abstract

Pemupukan N.P.K.Ca.Mg Berimbang dengan Prinsip Empat Tepat terhadap Kakao Produktip (Theobroma Cacao L.) KLON TSH 858 Sitohang, Nurdin; Harahap, Erwin M.; Hanum, Chairani; Siregar, Tumpal H.S.; Siregar, Hasril
AGROSUSTAIN Volume 3 Nomor 1 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v3i1.4626

Abstract

Cocoa productivity and its quality are still low (<2 tons ha-1), in order to increase its productivity through fertilization, it is necessary to be tested by using balanced N.P.K.Ca.Mg fertilizer with right formula and dosage. The research was done by 3 field experimental series at the cocoa seed farm (TSH 858 clone) owned by IOPRI at Sei Pancur, Deli Serdang on the altitude of 72 m. The research studies were: (1) the influence of balanced N.P.K.Ca.Mg fertilization; (2) the influence of formula and dosage of N.P.K.Ca.Mg of 12,5 : 10,9 : 16,4 : 10,3 : 4,6 and 12,9 : 11,4 : 16,8 : 10,6 : 4,8; and (3) the influence of the time of applying balanced N.P.K.Ca.Mg fertilization of 12,9 : 11,4 : 16,8 : 10,6 : 4,8 with pruning on cocoa flushing, flowering and pod reserves. The research method included: (1) non-factorial group random design with 6 levels of balanced N.P.K.Ca.Mg fertilization, for research-1; (2) nested factorial group random design with 2 levels (the best) of balanced fertilizer formula and 4 levels of dosage ratio (80%-140%), for research-2; and (3) non-factorial group random design with 4 levels of the time of applying balanced N.P.K.Ca.Mg fertilization related to heavy pruning, for research-3. Research-1 showed that, balanced N.P.K.Ca.Mg 12,5 : 10,9 : 16,4 : 10,3 : 4,6 and 12,9 : 11,4 : 16,8 : 10,6 : 4,8 fertilization indicated the better result on number of flower and pod reserves. Research-2 showed that, the formula of N.P.K.Ca.Mg fertilizer of 12,9 : 11,4 : 16,8 : 10,6 : 4,8 which tended to have the highest ratio of dosage (1,120 g plant-1) indicated the best result on number of flower and pod reserves. Research-3 showed that, application of fertilization 2 weeks after pruning indicated the best result. Potential yields can be increased from 680 kg ha-1 by tentative fertilization to 6,180 kg ha-1 by balanced N.P.K.Ca.Mg 12.9: 11.4: 16.8: 10.6: 4.8 fertilization.
Pengaruh Dua Susunan dan Kepadatan Lubang Tanam terhadap Pertumbuhan dan Hasil Tanaman Sawi Hijau pada Budidaya Vertikultur Hutauruk, Sixtus; Tarigan, Rio Stepanus; Sinaga, Josafat
AGROSUSTAIN Volume 3 Nomor 1 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v3i1.4627

Abstract

This research aims to determine the effect of two arrangements and density of planting holes on the growth and yield of the kumala mustard variety (Brassica juncea L) in verticulture cultivation. This research was carried out behind the screen house of the Faculty of Agriculture, Santo Thomas Catholic University, Jln. Setia Budi 479 F, Tanjung Sari Medan, North Sumatra Province with an altitude of ± 32 meters above sea level. Starting from May-June 2024. This research used a non-factorial Complete Randomized Block Design (RAKL) consisting of 6 treatments with 3 replications. The treatment factors are P1 = 4 x 12 holes/stem, L1 = 4 x 12 holes/stem, P2 = 4 x 9 holes/stem, L2 = 4 x 9 holes/stem, P3 = 4 x 7 holes/stem, L3 = 4 x 7 Holes/rod. The tools used in this research were pipes (4 inches), saws, machetes, paranets, tape measures, verses, pencils, drink bottles, drills, pottray cups, and wood. The materials used were mustard seeds (kumala variety), wire, soil (soil cleaned of rubbish), water, chicken and goat manure. The research data were analyzed using variance based on a linear model. The effect of the two arrangement treatments and the density of the number of planting holes had no significant influence on the number of leaves, leaf length and fresh weight of plant roots. However, it has a real influence on the height of the green mustard plant, the wet weight per plant and the wet weight of the plant per unit. The best treatment among the other treatments is the L2 treatment (horizontal arrangement with 9 holes.
Pemanfaatan Tanah TPA Terjun terhadap Pertumbuhan Tanaman Lavender (Lavandula Angustifolia) Panjaitan, Delima; Sulastri, Yustina Sri; Saitararak, Oktaria
AGROSUSTAIN Volume 3 Nomor 1 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v3i1.4630

Abstract

This research aims to determine the effect of the quantity and distance of land collection from the Terjun Landfill and the effect of the interaction of these two treatments on the growth of lavender plants (Lavandula angustifolia). Landfill soil is land in a final disposal site where, in this soil the organic nutrient content is quite high, but you need to know that apart from organic waste in landfill land there is also electronic waste, resulting in metal elements contained in landfill soil being also quite high. This research was carried out in screen house, Faculty of Agriculture, Santo Thomas Catholic University, Medan, with an altitude of 32 meters above sea level starting from February to April 2024. This research used a randomized block design (RAK) with 2 factors. The first factor is the distance to take landfill land (J) which consists of 3 levels, namely: J1= 0 m, J2= 52 m, J3= 104 m. The second factor is the quantity of landfill soil (M) consists of four levels, namely M1 = without landfill soil (Control), M2 = 3 kg, M3 = 4 kg, M4 = 5 kg. Data analysis uses analysis of variance. The parameters observed were plant height, number of shoots, root wet weight, root dry weight, root volume, shoot wet weight and soil pH. Based on the research results, it can be stated that the distance factor for taking soil has a very significant influence on plant height, number of shoots, root volume and wet weight of lavender plant crowns. The quantity of soil has a significant effect on plant height and the interaction between the distance from the landfill and the quantity of landfill soil has a significant effect on the wet weight of the canopy.
RESPON PERTUMBUHAN STEK BATANG BUAH NAGA (HYLOCEREUS COSTARICENSIS) TERHADAP LAMA PERENDAMAN DALAM AIR KELAPA DAN DOSIS ECOENZIM Panjaitan, Delima; Sinulingga, Edo Aprianta
AGROSUSTAIN Volume 2 Nomor 2 (2024)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v2i2.4669

Abstract

This research aims to see the response of dragon fruit stem cuttings to the length of soaking in coconut water and the dose of ecoenzymes and to determine the interaction between the two treatments. This research was conducted in Suka Makmur Village, Dusun II Suka Malem, Kutalimbaru District, Deli Serdang Regency, with an altitude of 125 meters above sea level and was conducted from March to May 2023. This research used a factorial Randomized Block Design (RAK) consisting of 2 factors. The first factor is the length of soaking in coconut water (A) which consists of 4 treatment levels, namely Ao = 0 hours (no soaking), A1 = 4 hours soaking, A2 = 8 hours soaking, and A3 = 12 hours soaking., second factor namely the dose of ecoenzyme (E) which consists of 4 treatment steps, namely Eo = 0 ml (without ecoenzyme), E1 = 6 ml of ecoenzyme, E2 = 10 ml ecoenzyme, and E3 = 14 ml ecoenzyme. Data analysis uses variance. The parameters observed in this study consisted of shoot emergence time, number of shoots, shoot length, number of roots, root length, net wet weight of roots, net dry weight. The research results showed that the length of soaking in coconut water had a significant effect on shoot length after 8 hours of immersion at 4 WAP, but had no real effect on the time of shoot emergence, number of shoots, shoot length at 8 and 12 WAP, number of roots, root length, net root weight. , net dry weight of roots. The ecoenzyme dose had a significant effect on root length with a dose of 14 ml, whereas the net root weight and net dry weight of the roots had no significant effect on the control treatment.
PENGARUH JARAK TANAM DAN DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN PRODUKSI AKAR WANGI (Vetiveria zizaniodes) PADA SISTEM BUDIDAYA POLIKULTUR DI BAWAH TEGAKAN TANAMAN KARET (Havea brasiliensis) Sulastri, Yustina Sri; Junaidi, Junaidi; Sinaga, Nurvita
AGROSUSTAIN Volume 2 Nomor 2 (2024)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v2i2.4670

Abstract

Get the best combination of plant spacing and fertilizer dosage for vetiver growth under rubber tree stands. This research was carried out at the Sungei Putih Research Unit, Rubber Research Center located in Galang District, Deli Serdang Regency, North Sumatra. This research used a factorial Randomized Block Design (RAK), which consisted of two factors, namely fertilizer dose and planting distance. The first factor given is the effect of fertilizer dose symbolized "U" which consists of four levels, namely: U0 = without NPK fertilizer (Control), U1 = 10 gr/plant, U2 = 20 gr/plant, U3 = 40 gr/plant . The second factor used is planting distance (J) which consists of three levels, namely: J1 = 20 cm x 40 cm, J2 = 20 cm x 60 cm, J3 = 20 cm x 80 cm. Each treatment level was repeated 3 times, so that there were 36 plots/experimental units and the total sample of plots was 12, the placement of each sample was carried out randomly. Planting distance 20 x 40 cm = 16 x 12 plots = 192 plants. Planting distance 20 x 60 cm = 16 x 12 plots = 192 plants. Planting distance 20 x 80 cm = 16 x 12 plots = 192 plants. So the total number of plants is 576 plants. The results of this research are that planting distance has a real influence on root wet weight and root dry weight, where a planting distance of 20x60 cm gives the best results. NPK fertilizer does not have an effect on all parameters.
PENGARUH KONSENTRASI IAA TERHADAP PERTUMBUHAN STEK BATANG ANGGUR (Vitis vinifera) VARIETAS. JUPITER Matanari, Jawaller; Tarigan, Rio Stepanus; Harefa, Kurnia Selekta Etika
AGROSUSTAIN Volume 2 Nomor 2 (2024)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v2i2.4750

Abstract

This study aims to see the effect of IAA concentration and find the optimum IAA concentration on the growth of stem cuttings of Jupiter variety grapes. The parameters observed in the experiment include: Percentage of budding cuttings, Age of budding cuttings, Number of buds per cuttings 65 hst, Height or Length of shoots 65 hst, Number of leaves per cuttings 65 hst, and Number of live plants 90 hst. Based on the results of experimental data analysis and discussion, several conclusions can be drawn as follows: IAA concentration treatment has a significant effect on increasing the percentage of sprouted cuttings, shoot length 65 hst and number of live plants 90 hst, IAA-optimum concentration for the percentage of sprouted cuttings is 50 ppm IAA, 65 HST shoot length is 35 ppm IAA, and the number of live plants is 33.33 ppm IAA. Growth of grape stem cuttings was higher at concentration treatments lower than 100 ppm IAA concentrations. The effect of IAA concentration on the growth of grape stem cuttings effectively promotes growth lower than 100 ppm concentration, whereas treatment of higher concentrations markedly suppresses the growth of observed parameters. The optimum IAA concentration in more valid grape stem cuttings needs to be experimented with the effect of IAA concentrations below 100 ppm on the growth of Jupiter grape cuttings, because the regression equation obtained in this experiment is influenced by the level of treatment performed.
PENGARUH JARAK TANAM DALAM UPAYA MENEKAN PERTUMBUHAN GULMA PADA PERTANAMAN DAN PRODUKSI JAGUNG MANIS PADA VARIETAS EXSOTIC (Zea mays saccharate Sturt) Sitinjak, Lentina; Tarigan, Mulianta
AGROSUSTAIN Volume 2 Nomor 2 (2024)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v2i2.4751

Abstract

This research aims to determine the effect of planting distance on weed growth and production of Exsotic sweet corn (Zea mays saccharate Sturt) varieties. Weeds are one of the main inhibiting factors in the growth of sweet corn plants, which can have a negative impact on production if not controlled effectively. This research was carried out from May to July 2024 on Jalan Ngumban Surbakti Gang Sedap Malam no. This research method uses a non-factorial Randomized Block Design (RAK) which consists of 3 levels. The treatment factors are the first: J1 with a planting distance of 50 cm x 25 cm, J2 with a planting distance of 60 cm x 25 cm and J3 with a planting distance of 70 cm x 25 cm. The research data were analyzed using variance based on a linear model. Based on the research results, there is an influence of planting distance on the presence of weed vegetation in corn planting areas. The most types of weeds are found at planting distance J3 (70 x 25 cm) with 6 types of weeds with a Summed Dominance Ratio (SDR) of 1.14%, while the type of weed with the lowest SDR is found at planting distance J2 (60 x 25 cm) amounting to 0.83%. And planting distance has a significant effect on plant height at 2 and 8 WAP, stem diameter at 2 WAP, number of leaves at 2 WAP, production per sample, weight per plot and safe weight. Plants had the best growth at a planting distance of J3 (70 cm x 25 cm), while the highest production was at a planting distance of J1 (50 cm x 25 cm).
PENGARUH BERBAGAI JENIS PUPUK KANDANG DAN DOSIS PUPUK UREA TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI HITAM (GLYCINE SOJA L.) Sipayung, Patricius; Hutauruk, Sixtus; Sipayung, Amsal Rosendo
AGROSUSTAIN Volume 1 Nomor 1 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i1.2479

Abstract

This study aims to determine the effect of various types of manure and urea fertilizer dosage on growth and production of black soybean (Glycine soja L.). The model used is a factorial Randomized Block Design (RAK) consisting of 2 factors. The first factor is the type of manure consisting of 3 levels, namely: K1 = Chicken manure (75 gr polybag-1), K2 = Goat manure (75 gr polybag-1) and K3 = Cow manure (75 gr polybag-1). The second factor is the dose of Urea fertilizer consisting of 3 levels, namely: U1 = 2.50 gr polybag-1, U2 = 3.75 gr polybag-1 and U3 = 7.50 gr polybag-1. Parameters observed consisted of plant height, number of branches, age of flowering, weight of 100 seeds, root length, number of root nodules. Based on the results of the study, it can be stated that the type of manure had no significant effect on plant height, number of branches, age of flowering, weight of 100 seeds, root length and number of root nodules of black soybean plants. The dose of urea fertilizer had no significant effect on plant height, number of branches and age of flowering, but significantly increased weight of 100 seeds, root length and number of root nodules. The interaction of type of manure and dose of urea fertilizer had no significant effect on all observed parameters.
EKSTRAK DAUN PANDAN WANGI (PANDANUS AMARYLLIFOLIUS ROXB.) DALAM MENGENDALIKAN ULAT GRAYAK (SPODOPTERA LITURA F.) DI LABORATORIUM Benauli, Arkhiadi; Sitohang, Nurdin; Gusriani, Yunda; Harefa, Syukur Berkat
AGROSUSTAIN Volume 1 Nomor 1 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i1.2480

Abstract

This research was conducted at the Biology Laboratory, Faculty of Agriculture, Universitas Katolik Santo Thomas, Medan. This study aims to determine the potential of fragrant pandan leaf extract as a vegetable pesticide in controlling armyworm pests. This study used a non-factorial completely randomized design (CRD). The treatment factor was fragrant pandan leaf extract (Pw) which consisted of 5 treatments and 4 replications, namely: Pw0 = (control/without giving fragrant pandan leaf extract), Pw1 = 20 ml of fragrant pandan leaf extract, Pw2 = 40 ml of pandan leaf extract fragrant, Pw3 = 60 ml of fragrant pandan leaf extract and Pw4 = 80 ml of fragrant pandan leaf extract, each treatment added with 100 ml of distilled water. The results showed that the highest percentage of mortality (100%) at 108 hours after application (JSA) was found in the treatment of 80 ml of fragrant pandan leaf extract + 100 ml of aquadest. The fastest death time of 50% of armyworms was found in the treatment of 80 ml of fragrant pandan leaf extract + 100 ml of aquadest, which was 30 JSA.

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