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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

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Phsyiologys Response Two Genotypes of Soybean on Giving α- Tocopherol in Saline Lands putri tya sumantri; Nini Rahmawati; Mariati Mariati
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The aim of the research to find out influence of α-tocopherol concentration on physiological of two soybean genotypes. The research was conducted at Desa Paluh Merbau, Percut Sei Tuan, Deli Serdang ± 1.5 m above sea level. The leaf analysis conducted at Tissue Culture Laboratory of Faculty of Agriculture, University of Sumatera Utara from May to July 2017. The design of the reset was range by Randomized Block Design with two factors. The first factor was the soybean genotype ie; Grobogan x Anjasmoro and GroboganI x Grobogan and the second was the concentration of α - tocopherol ie; 0, 250, 500 and 750 ppm. The result of research showed that soybean genotypes, the concentration of a-tocopherol and combination between soybean genotypes with concentration a-tocopherol has no significant effect on all parameters. Nevertheless it appeared that soybean genotypes (GroboganI x Grobogan) produced sod and pod higher than other treatments. The concentration of a-tocopherol 500 ppm produced H2O2, which more less than other treatments. The combination of genotypes (GroboganI x Grobogan) with concentration a-tocopherol 500 ppm produced SOD was higher than other treatments . Keywords :α - tocopherol, saline, soybean genotype

The Influence Of Organic Matter Of Kirinyuh (Eupathorium Odoratum) and That Of Organic Matter Of Paitan (Tithonia Diversifolia) On Some Soil Chemical Properties and Maize Yield On Ultisols Andreas Napitupulu; Posma Marbun; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The study was performed in order to investigate the influence of organic matter of kirinyuh (Eupathorium odoratum) and that of organic matter of paitan (Tithonia diversifolia) on some soil chemical properties and maize yield on Ultisols of Village Huta Ginjang. The experiment was in a non-factorial randomized complete block design. The treatments included control, inorganic NPK 100 %, fresh bitter bush 10 t/ha, fresh wild sunflower 10 t/ha, decayed bitter bush 10 ton/ha, decayed wild sunflower 10 ton/ha, fresh bitter bush 10 ton/ha + 50 % NPK, fresh wild sunflower 10 ton/ha + 50 % NPK, decayed bitter bush 10 ton/ha + 50 % NPK, and decayed wild sunflower 10 ton/ha + 50 % NPK. The treatments was replicated three times. The results showed that the applications of fresh bitter bush (Euphatorium odoratum), decayed bitter bush, fresh bitter bush + 50 % NPK and fresh wild sunflower (Tithonia diversifolia), decayed wild sunflower, fresh wild sunflower + 50 % NPK significantly increased soil pH, N-total of soil, exchangeable K of soil, fresh fruit weight, and the 1,000 maize seed weight. However, the application of decayed wild sunflower combined with NPK was the most appropriate one since it generated the extraordinary value on parameters: soil pH, exchangeable K, fresh fruit weight and the 1,000 maize seed weight with their values in turn: 5,41; 2,53 me/100g; 357,33 g/plot dan 303,33 g/plot. Keywords :kirinyuh, maize production, organic matter, tithonia, Ultisol

Response on Growth of Oil Palm Seedling (Elaeis guineensis Jacq.) by Adding Dolomite, Fertilizer and Sulphate Reduction Bacteria on Acid Sulphate Soils in Green House Muhammad Ramadhan; Asmarlaili Sahar Hanafiah; Hardy Guchi
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

Soil fertility is an important aspect of increasing the growth of oil palm seedling. This research aimed to determine the effect of dolomite, fertilizer and sulphate reduction bacteria (SRB) on the growth of oil palm seedlings. This research was conducted at green house used acid sulphate soils. The research used Randomized Block Design with 3 treatments : Dolomite (without dolomite, dolomite 15,80 tonnes/ha, dolomite 31,60 tonnes/ha), fertilizers (without fertilizer, fertilizer 2,5 grams/seedling, fertilizer 5 grams/seedling) and sulphate reduction bacteria (without SRB and given SRB) with 3 replications. The results showed that the application of dolomite (15,8 and 31,6 tonnes/ha) increased soil pH (4.90 and 4.78) statistically significant. Application of sulphate reduction bacteria increased soil pH (4,59) statistically significant. Application of fertilizers (2,5 and 5 grams/seedling) increased the plant height (40,19 and 44,59 cm) and stem diameter (25,33 and 26,90 mm) statistically significant. Application of dolomite and sulphate reduction bacteria inoculum could increase the plant height and stem diameter of oil palm seedlings more than control. The application of dolomite, fertilizers and also sulphate reduction bacteria inoculum could increase the plant height and stem diameter of oil palm seedlings more than control. The best treatment was dolomite 31,60 tonnes/ha, fertilizer 5 grams/seedling and sulphate reduction bacteria inoculum. Application of dolomite could be replaced with sulphate reduction bacteria inoculum. Keywords : Acid Sulphate Soil, Dolomite, Fertilizer, Soil Fertility, Sulphate Reduction Bacteria

Some Changes in Chemical Properties Land and Growth of Corn (Zea mays L.) Giving Due Waste Cigarette Paper Factory and Chicken Manure On Ultisol Soil Albi Abdillah; Kemala Sari Lubis; Mukhlis Mukhlis
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

The solid waste of the factory of wrapper cigarette is generated very much by the factory of wrapper cigarette PT.Pusaka Prima Mandiri. This waste contains calcium carbonate + 70,81% and can increase acidity of Ultisol. The research was to conduct study the utilization of solid waste of the factory of wrapper cigarette and chicken manure to repair soil acidity and nutrient content of Ultisol. Screen house research has been conducted to examine the effect of solid waste of the factory of wrapper cigarette and chicken manure in overcoming acidity and soil nutrient enhancement Ultisol. This research was conducted by randomized block design two (2) factors. The first factor is solid waste of the factory of wrapper cigarette consists of five (5) doses and the second factor is chicken manure consisting of three (3) doses with three (3) replications. Analysis of soil was conducted at the Laboratory of Oil Palm Research Centerand Soil Chemistry Laboratory ofFaculty of Agriculture, University of North Sumatra. Parameters observed include soil pH, Al(exch), P-available, plant height and dry weight of crown and root maize. The results showed that the solid waste ofthe factory of wrapper cigarette can decrease acidity of Ultisol and increase increase the plant height and dry weight of the crown. Chicken manure can decrease acidity of Ultisol. The solid waste of the factory of wrapper cigarette has the potential to decrease Al(exch) and meet the availability of P in the soil.

Application of Liquid Organic Fertilizer Human Urine Fermentation to Increase Growth of Corn Plants in Inceptisols Kwala Bekala Sefriansyah Putra; Mukhlis Mukhlis; Mohd. Madjid Damanik
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

Green house study to increase growth of corn plants with application human urine fermentation as liquid organic fertilizer in Inceptisols Kwala Bekala. Research using randomized block non factorial design with 5 levels of dosage treatmenthuman urine fermentation that is: 0 mL/pot (P0), 25 mL/pot (P1), 50 mL/pot (P2), 75 mL/pot (P3) and100 mL/pot (P4) with 5 replications. Parameter that measured are soil pH, organic C, N-total, P-available, K-exchangeable, plant height, root dry weight, shoot dry weight, N, P and K uptake in Laboratory. Result of this research showed that application human urine fermentation can improve soil pH, organic C, N-total, P-available, K-exchangaeble, plant Height, root and shoot dry weight, and uptake N, P, K growth of corn plants. Best human urine fermentation dose on this research is 75 mL/pot (P3). Keywords: Human urine fermentation, Inceptisols Kwala Bekala, Nutrient, Organic fertilizer.

Evaluation The Characteristics Of Soil Chemical Properties Of Oil Palm In The Adolina Plantantion Ptpn Iv Serdang Bedagai On Several Generation Of Planting Nuraini Nuraini; Abdul Rauf; Jamilah Jamilah
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

ABSTRACT The reseach aimed to determine changes in the characteristics of some soil chemical properties planted with oil palm in several generations of planting. This research was conducted in July 2016 until January 2017, using survey method with descriptive analysis. Soil samples were taken in 3 generations of planting, G0 (land never planted with oil palm), G1 (land cultivated by oil palms for 11 years), G3 (land cultivated by oil palms for 58 years) and G4 (land Which has been cultivated for oil palm plantations for 72 years). That Generation II land is still projected at the time of this research. In each generation three soil profiles are made, then tested by t Test. The results showed that the increase of planting generation to change the soil characteristics of soil chemistry is very apparent in the decreasing soil pH which is more acid, while the C-Organic, total of N, total of P, total of K and soil carbon stocks different is not real meaning that the generation of planting in oil palm plants does not affect the soil chemical properties in the Adolina plantation. But increasing the value of CEC land the longer the generation of planting. Keywords: generation of planting, oil palm, soil chemical properties

Influence of Rainfall and Rainy day On Oil Palm Production 8, 16, and 19 years Old in Sei Dadap PT. Perkebunan Nusantara III Persero Abdurrahman Zailani; Irsal Irsal; Mariati Mariati
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

The Influence of rainfall and rainy day on oil palm production 8, 16, and 19 Years Old in Sei Dadap PTPN III Persero supervised byIrsaland Mariati.The climate like rainfall and rainy day is very influential to the growth and productivity of oil palm. The oil palm is a plant that requires large amounts of water than other crops. This research was to determine the effect of rainfall and rainy day as well as the correlation of both on oil palm production in plants aged 8, 16 and 19 years old. The research was conducted at PTPN III Sei Dadap Sub-district Sei Dadap District Asahan Province of North Sumatera from April up to June 2016. This research used primary data available in company administration. Primary data for the purposes of data analysis includes the production of fresh fruit bunches (FFB); component production data as total bunches, average bunches weight, and total of productive trees; rainfall data and rainy day monthly in 2011, 2012, and 2013. The analysis method used are double linier regression and correlation analysis. Model tested by classic asumption consists of normality test, heteroskedasticity test, multicollinearity, and autocorelations test by using statistic software SPSS.v.22 for windows. The regression analysis shows that rain fall and rainy day variables significant with alpha 5% (Sig < α 0.05) to increase the production of FFB at the age of 16 and 19 years and unsignificanted to increase the production of FFB at the age 8 years. This is because the rainfall is not evenly distributed throughout the year and less than optimal for the growth and production of FFB. From the results of the classical assumption test conducted to determine whether the multiple regression equation feasible or not to use the regression equation to conclude that the oil palms aged 8, 16, and 19 years are qualified. Correlation results in plants was 8, 16, and 19 years with two-way analysis test at 1% level showed variable rainfall and rainy days have a strong relation, and the real (positive) direction. The correlation values of rainfall and rainy days are 0.838 with significant level < α 0,01

Differences In Growth of Two Varieties of Oil Palm(Elaeis guineensis Jacq.) to The Composition of Planting Mediain Prenursery eddy susanto; lisa mawarni; asil barus
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

The purpose of this research is to know the difference growth of two varieties of palm oil (Elaeis guineensis Jacq.) on composition media pretax cropping in a nursery. This research have held in the faculty of agriculture land of usu in december 2016 to march 2017 using random design group with two factors .The first factor varieties with two kinds of varieties namely Yangambi and PPKS540 .The second factor media cropping with three types of media cropping namely subsoil, empty fruit bunch, and fibers palm oil. Parameters that observed is high in plant, diameter of the stem, total broad leaves, fresh editorial weights, weights fresh roots, dry weight editorial and weights dried root. The result show that treatment cropping influential media real against tall plant, diameter of the stem, wet editorial weights and weights dry editorial. Where treatment influential real varieties on the parameter weights dried root. And variety of Yangambi (V1).While media cropping best is media cropping subsoil or control ( M0 ).

Mapping Of Soil Infiltration In Publik Green Open Space In Medan City Muhammad Arief Siddiq; Hardy Guchi; Sarifuddin Sarifuddin
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

This study aims to identify and map soil infiltration in public green open space in Medan city.The research was conducted in Public Open Space of Medan City. Soil sampling and measurement of innfiltration was done by using purposive sampling method based on overlapping map of green open space type and soil type map, and got 22 sample points for analysis.The result shows that the ability of soil infiltration in public Open Space in Medan City is classified as slow, slow and moderate criterion. The highest soil infiltration is found at Al Abraar Mosque grave (SPL 20) with infiltration value 30.122 mm / h in medium criteria. The lowest soil infiltration is found in Forest of Taman Beringin City (SPL 10) with infiltration value 1,111 mm / h in medium criterion. Infiltration in the city's open public green space, influenced by the type of soil and vegetation above it. Keywords: green open space, infiltration, mapping

The Influence of Water Temperature and Soaking Duration at Two Levels of Fruit Maturity for Soursop (Annona muricata Linn) Seed Germination Dea Triaspita Gea; Haryati Haryati; Jonatan Ginting
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

Seed maturity is the one of important factors in germination process. Physiologically immature seeds generally do not have sufficient food reserves and seed structure are not fully formed, which may inhibit germination processes. One effort that can be done to accelerate the process of seed germination to soaking seeds in the water. This research was conducted at the Laboratory of Seed Technology, Agriculture Faculty, North Sumatera University, Medan, from December 2016 to February 2017, using a randomized block design with 3 factors. The first factor is fruit maturity with 3 levels: immature; mature, the second factor is water temperature with 2 levels: 28⁰ C; 9⁰ C and the third factor is the length of soaking with 3 levels: 12 hours; 24 hours; 36 hours. The results interaction treatments fruit mature, water temperature 9⁰ C and soaking duration 36 hour significantly accelerate the germination rate to 20,45 days, increasing vigor index to 1,57 seed/days, increasing percentage normal seedling to 100,00% decreasing percentage abnormal seedling and seed dies to 0,00%.

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