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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

Arjuna Subject : -

Articles 943 Documents

89 90 91 92 93

Sugarcane Bud set Seed Growth at Various of Planting Material Ages and Storage Periods Muhammad Fauzan Alwani; Meiriani Sembiring; Lisa Mawarni
Jurnal Agroekoteknologi Vol 6, No 1, Januari (2018)
Publisher : Universitas Sumatera Utara

In order to get a good seed, the source of planting material usually uses 6 - 8 months. Storage of sugarcane bud set aims to maintain the viability of the seeds as long as the bud set is not ready for planting. This research was conducted on the land of the Agriculture Faculty, University of Sumatera Utara, Medan in April - July 2017, using factorial randomized block design with two factors, i.e. age of planting material (6, 7, and 8 months) and storage periods (24, 48, 72 hours). The results showed that 7 months planting material gave the best plant lenght and seeds diameter. Using 7 months planting material with 72 hours storage periods gave best shoot growth percentage.

Response fermented goat urine by EM4 on Productivity of Legum Stylosanthes guianensis and Arachis pintoi Fajar Bahari Ginting; nevy diana hanafi; hasnudi hasnudi
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Utilization of EM4 fermented goat urine as organic fertilizer that can improve productivity of legumes Stylosanthes guianensis and Arachis pintoi. The study was conducted in field laboratory Animal Science Study Program Faculty of Agriculture, University of Sumatera Utara in June to November 2017, using a randomized block design factorial divided into 2 factor, composed of the type of legume (Stylosanthes guianensis and Arachis pintoi) and the fertilizer dose (0, 100, 150, 200, 250 ml / polybag). The variables observed were plant height, fresh weight production and dry matter production. The results showed that increasing dose fermented goat urine give the very real result (P<0.01) increased plant height, fresh weight production and dry matter production and the productivity Stylosanthes guianensis hed nigher Arachis pintoi plant height, fresh weight production and dry matter production it is concluded that increased dose fermented goat urine increased on productivity of Stylosanthes guianensis and Arachis pintoi. Keywords: fermented goat urine, Stylosanthes guianensis, Arachis pintoi, productivity, fertilizing dose.

Response fermented goat urine by EM4 on Productivity of Brachiaria humidicola and Digitaria milanjiana keke rejeki sembiring; nevy diana hanafi; sayed umar
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Utilization of EM4 fermented goat urine as organic fertilizer that can improve productivity of Brachiaria humidicola and Digitaria milanjiana. The study was conducted in field laboratory Animal Science Study Program Faculty of Agriculture, University of Sumatera Utara in June to November 2017, using a randomized block design factorial divided into 2 factor, composed of the type of grass (Brachiaria humidicola and Digitaria milanjiana) and the fertilizer dose (0, 100, 150, 200, 250 ml / polybag). The variables observed were plant height, fresh weight production and dry matter production. The results showed that increasing dose fermented goat urine give the very real result (P<0.01) increased plant height, fresh weight production and dry matter production and the productivity Digitaria milanjiana hed nigher Brachiaria humidicola plant height, fresh weight production and dry matter production it is concluded that increased dose fermented goat urine increased on productivity of Brachiaria humidicola and Digitaria milanjiana. Keywor/ds: fermented goat urine, Brachiaria humidicola, Digitaria milanjiana, productivity, fertilizing dose.

The Utilization of Fermented Pig Urine as Liquid Organic Fertilizer to the Productivity of Brachiaria humudicola and Digitaria milanjiana Grass iin melani harahap; sayed umar; nevy diana hanafi
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

The livestock farming which is unoptimilized by additional production of the livestock that they cultivaded. This research was did at Agricultural Faculty of North Sumatera University field from June to November 2017. The purpose of this research is to know the appropriate dose of fertilizer and the response of fertilizer use to productivity (plant height, production of fresh material and dry ingredients)of Brachiaria humidicola and Digitaria milanjiana grass. The research method using is Split Plot Design which is the main plot is the variety of grass (R1 = Brachiaria humidicola and R2 = Digitaria milanjiana) and as the seed plot is the fermented pig urine liquid fertilizer (P0 = control (without urine), P1 = 100 ml, P2 = 150 ml, P3 = 200 ml and P4 = 250 ml). The parameters observed were plant height, production of fresh material and dry matter production. The result show that the higher the dose of fermented pig urine liquid fertilizer so that the higher productivity produced which is using 250 ml/plots (P4) the gave increased productivity of Brachiaria humidicola and Digitaria milanjiana grass for plant height, fresh produce and production of materials dry and Digitraria milanjiana grass has a faster response in the absorption of the fermented pig urine liquid fertilizer. Keywords: Brachiaria humidicola, Digitaria milanjiana, urine pig, productivity

Distribution of Clay Minerals in Tambunan A Field Experimental of University of Sumatera Utara at Salapian Sub-district of Langkat Regency Louis Manihuruk; Purba Marpaung; Alida Lubis
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Distribution of Clay Mineral in Tambunan A Field Experimental of University of Sumatera Utara at Salapian Sub-district of Langkat Regency. This research was conducted in Tambunan A Field Experimental of University of Sumatera Utara at Salapian Sub-district, Langkat Regency. Laboratory analysis was conducted at PT. Socfindo Medan and Educational Laboratory of Industrial Chemical Technology Medan. The study was conducted from March 2017 until October 2017. The analysis of clay minerals using Differential Thermal Analysis (DTA) tools on 5 soil profiles determined by slopes. The result showed that the profile I had 4 horizon layers of Ap1, Ap2, Ap3, and Bw horizon, Profile II had 6 horizon layers Ap1, Ap2, Bw1, Bw2, Bw3, and BC, Profile III had 5 horizon layers ie Ap1, Ap2, Ap3, Bw1, and Bw2, Profile IV had 5 horizon layers of Ap, Apw, Bw1, Bw2, and Bw3 and Profile V had 6 horizon layers Ap1, Ap2, Ap3, Bw1, Bw2, and Bw3. DTA analysis results showed that the clay mineral species contained were allophane-a, and kaolinite. Alofan-a and kaolinite were present in all horizon layers in all profiles whereas gibsit are not present on all layers of soil horizon.Keywords : Differential Thermal Analysis, Tambunan A, Langkat Regency

The Potential Test of Vascular Arbuskula Mychorryza (VAM) Type on The Growth of Corn Plant ( Zea mays L.) on Inceptisol Astri Hartaty Simanungkalit; Asmarlaili Sahar Hanafiah; Tengku Sabrina
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Vascular Arbuskula Mycorrhiza (VAM) is a fungus that symbiosis with plant roots. Mycorrhiza can be found in almost 80% of plant species. This research aimed to examine the potential of Vascular Arbuskula Mycorrhiza isolated from several plant rhizosphere on the growth of corn plant (Zea mays L.) and nutrient uptake.Mycorrhizal isolates was collected from roots of wild ginger, bangle, turmeric and oil palm crop planted on Spodosol. Experimental design used Randomized Block Design with 8 treatments, that were the various of mycorrhizal isolates and 3 replications.This research was conducted at green house and laboratory. Potency of mycorrhizal isolates was tested on corn plants on Inceptisol. The results showed that the application of mycorrhizal isolates from oil palm’s roots planted on Spodosol increased corn’s growth (plant height, stem diameter, number of leaves and root dry weight) higher than growth on control and on other mycorrhizal treatments. The best treatment increased the NPK nutrient uptake was mycorrhizal isolates from oil palm’s roots planted on Spodosol. Keywords : corn,inceptisol,mycorrhiza inoculums,oil palm,spices Potency of mycorrhizal isolates was tested on corn plants on Inceptisol. The results showed that the application of mycorrhizal isolates from oil palm’s roots planted on Spodosol increased corn’s growth (plant height, stem diameter, number of leaves and root dry weight) higher than growth on control and on other mycorrhizal treatments. The best treatment increased the NPK nutrient uptake was mycorrhizal isolates from oil palm’s roots planted on Spodosol.

Study of Soil Acidity, Organic Carbon and Texture of Ultisol in Several Vegetation at Durian Baggal, District of Raya Kahean (Case Study: Semi Critical Land in Region Of Sibarau Water-Shed) Rio Andreas Tambunan; Kemala Sari Lubis; Ir Razali
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Sibarau Sub-Watershed is one of the Sub-Watershed of Padang Watershed. Land area with semi critical criteria in the Sibarau Watershed is 1471.83 hectares or 20% of the total entire Sibarau Watershed critical land area.This research was conducted to analyze and determinecharacteristic of soil physical and soil chemical in semi critical land area at sub-watershed Sibarau Durian Baggal village, Raya Kahean. research area are palm, rubber, mix plant, duku and forestry.The research was conducted at Soil Chemistry and Biology Laboratory and Research and Technology Laboratory of Faculty of Agriculture, University of North Sumatera. The Research Held in July until September 2017.The research was conducted by using survey method of sampling surveys with. Analyzed of soil pH with methods electrometry, soil organic matter with Walkley and Black method, and soil texture with Hydrometer Bouyoucos method. The results showed that on palm land soil acidity was acidic, C-organics very low and texture wasis sandy loam.On rubber land soil acidity was acidic, C-organics low and very low, texture is sandy loam. On mix plant land soail acidty is acidic, C-organics was low til very low and soil texture was sandy loam. On duku land soil acidity was acidic , C-Organics was low and soil texture was sandy loam. On forestry lan soil aciity was medium acidic, C-organics was medium and soil textutre was loamy sandKeywords: soil acidity, organic carbon, texture,semi critical land, sibarau sub-watershed

Study Of Texture, Organic Carbon, and Acidity of Ultisols in Several Vegetations at Gunung Datas Village Raya Kahean Sub District (Case Study: Semi Critical Land Bah Sumbu Sub Watershed) Egiya Muspa Tarigan; Kemala Sari Lubis; Hamidah Hanum
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Land use at the area of Bah Sumbu Sub Watershed has intensified, causing the decrease of soil organic matter. Land area with criteria critically / semi critically at Bah Sumbu sub watershed area is 8742,949 hectares or 79,41% of the total entire Bah Sumbu Sub Watershed. This research was conducted to study texture, organic carbon and acidity of the soil moderate critical area of land at Bah Sumbu sub Watershed, Gunung Datas , Raya Kahean Subdistrict. The research was conducted by using survey method with soil sampling randomly based on some vegetations and slopes. Soil samples was taken at each vegetation for 3-6 samples. Analyzed of soil pH with methods electrometry, soil organic matter with Walkley and Black method, and soil texture with Hydrometer Bouyoucos method. Based on the results of soil analysis of several land uses in Gunung Datas Village, Bah Sumbu sub-watershed area is known that soil pH is included in very acidic to slightly acidic criteria with acidity range of 3,73 to 5,82. The C-organic content is included in very low to moderate criteria with a range of organic carbon between 0,77% to 2,02%, and the texture is dominant sandy loam soil texture.Keywords: vegetation, texture, pH, organic carbon

Mapping the Soil Fertility at Arabica Coffee Field in Lumban Julu District, Toba Samosir District Joko Erikson Sihombing; Posma Marbun; Purba Marpaung
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Lumban Julu Subdistrict is one of the producer Arabica coffee in Toba Samosir District. Know the soil fertility status Very important to increase production Arabica coffee. This research aims to mapping the soil fertility in arabica coffee field in Lumban Julu Subdistrict, Toba Samosir district. It was located at Arabica Coffee Field in Lumban Julu Sub-district, Toba Samosir District. Soil samples were taken from each Soil Map Unit (SMU) and it will be analyzed at the Laboratory. Observed parameters are cation exchange capacity (CEC), bases saturation, C-organic, P-total and K-total. The research showed that all soil fertility status of SMU 1 until SMU 8 were low criterion.Keywords: arabica coffee, mapping, soil fertility status

Growth and Production of Mung Beans in Ultisols with Liquid Brown Algae Compost Applications on Various Combinations of N and K Johannes Simbolon; Alida Lubis; Jamilah Jamilah
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

The addition of organic matter to the soil and inorganic fertilizer uses can improve soil properties. This objective of the research was to know the effect of liquid brown algae (Sargassum polycystum C.A Argadh.) compost application that combined with N and K fertilizer on chemical properties of Ultisols and growth and production of mung bean. This research was conducted in screen house and laboratory that was using a non-factorial randomized block design with 19 treatments and 2 replications. Data were analyzed with Analysis of Variance (ANOVA) and continues with Duncan’s Multiple Range Test (DMRT) at the level of 1% and 5% and Contrast Test at 5% level. The results of the research showed that the application of liquid compost of brown algae can increase soil pH (H2O) and soil available-P, but decrease soil organic-C, soil total-N, and soil exchange-K. The application of liquid compost of brown algae with various combinations of N and K fertilizers is tendency to decrease all plant parameters such as plant height, number of leaves, number of primary branches, number of pods per plant, and seed weight per plant compared without the treatment of brown algae compost.Keywords: brown algae, mung beans, ultisols

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