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The Effect of Chicken Manure and Lime (CaCO3) towards a Number of Soil Chemical Properties and the Growth of Corn (Zea mays L.) at Kwala Bekala Inceptisol eko tampubolon; MMB DAMANIK; Purba Marpaung
Jurnal Agroekoteknologi Vol 6, No 1, Januari (2018)
Publisher : Universitas Sumatera Utara

A pot trial at the screen house of College of Agriculture, University of North Sumatera was carried out to evaluate the effects of varied levels of chicken manure and lime of CaCO3 towards a number of soil chemical properties and corn growth on Inceptisol of Kwala Bekala. The trial was 3 x 3 factorial arranged in a randomized complete block design. Treatments included three levels of chicken manure: 0, 5 and 10 t/ha and three levels of lime and three replications to meet 27 experimental units, respectively. The results showed that 10 t/ha of chicken manure significantly increased the availability of phosphorus in soil and also the absorption of phosphorus by plants. The results also showed that at 4.47 t/ha lime of CaCO3 significantly increased the soil pH. However, there was no interaction effect between chicken manure and lime of CaCO3. Keywords: chicken manure, corn growth, Inceptisol, lime of CaCO3

Evaluasi Kesesuaian Lahan Tanaman Padi Sawah (Oryza sativa L.) Di Desa Sukorejo Kecamatan Sei Balai Kabupaten Batubara deyu zahraini putri; purba marpaung; mariani br sembiring
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Land evaluation is estimation process of the potensial land for a variety of alternative uses optimally by considering physical and socioeconomic factors as well as conservation of environmental resources for sustainable use. This study aimed to evaluate the suitability of rice paddy (Oryza sativa L.) in Village Sukorejo Subdistric Sei Balai Distric Batubara. It can be obtained 2 (two) Land Mapping Unit (SPL) which is determined base on the overlay result from the map of topography, map of soil types and map of land use with scale of 1 : 20.000 that is Sawah Ultisol SPL 1A and 1B and Sawah Inceptisol SPL 2A and 2B. This study used survey method and the class assessment of land suitability was done by matching based on criteria astablished by Peraturan Mentri Pertanian No.79 (2013). The results showed that the land suitability classes of actual rice paddy (Oryza sativa L.) in SPL 1A, 1B and 2A is Marginally Suitable/ S3nrxs by a nutrient retention and sulfidic material barrier factor while in SPL 2B is Marginally Suitable/S3nr by a nutrient retention barrier factor. The land suitability calasses potential rice paddy (Oryza sativa L.) for l SPL (1A, 1B dan 2A) is suitable/ S2nrxs by a nutrient retention and sulfidic material barrier factor while in SPL 2B is suitable/ S2nr by a nutrient retention barrier factor. Keywords : Land suitability, Lowland rice, Rice paddy

Lowland rice soil classification at village Sukorejo subdistrict Sei Balai, district of Batubara based on soil taxonomy 2014 hamdi fadli kurniawan; purba marpaung; Jamilah Jamilah
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Classification of soil is a process to select the soil according to the characteristic and their ability. Classification gives a description of the physical properties, chemistry, and minerals of land owned which can then be used as a basis for management for land users. The study aim to classify the soils on orders, sub orders, great groups and sub groups. The location at Village Sukorejo Subdistrict Sei Balai District Batubara, that start from September 2016 until Januari, 2017. Soil morphology was description of soil profiles to know soil properties, horizons and diagnostic horizon. Soil samples were taken from each horizon for laboratory analysis of soil texture, bulk density, pH (H2O), pH (KCl), P2O5, organic carbon, exchangeable cations (Ca2+, Mg2+, K+, Na+), Total Fe, Al can be exchange, base saturation and cation exchange capacity (CEC) in Socfindo, Asian Agri, and Chemistry and Soil Fertility Laboratories Agriculture Faculty University of North Sumatera. The results shows that type of soil SPL 1A and 1B are Ultisols, Aquults, Albaquults, dan Typic Albaquults. For SPL 2A and 2B are Inceptisols, Aquepts, Endoaquepts, dan Aquandic Endoaquepts. Keywords : Lowland rice, soil classification, soil taxonomy 2014

Infiltration Capacity in 4 Land Use Types in the Sei Silau Barat village, Setia Janji sub-district, district of Asahan Siti Maqdisa; jamilah Jamilah; purba marpaung
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

ABSTRACT The objective of this research was to know the infiltration capacity in 4 land use types in the Sei Silau Barat village, Setia Janji sub-district, district of Asahan. Coordinate on settlement area of 99o29’40” N 2o56’24” E and 99o29’50” N dan 2o56’18” E, on corps of palawija at coordinate of 99o31’10” N 2o56’56” E and 99o30’50” N 2o56’38” E, at oil palm estate at coordinate of 99o30’30” N 2o57’16” E and 99o30’20” N 2o56’52” E, and at rubber estate at coordinate of 99o30’20” N 2o56’52” E and 99o30’10” N 2o55’58” E. Soil analysis results at settlement area its texture was sandy clay, organic matter content was 0,54%, rate of water was 30,61%, bulk density was 1,05 g/cm3, particle density was 2,19 g/cm3, and porosity was 51,81% with infiltration capacity was 7,8 x 10-6 m/s (medium). At corps of palawija, its texture was sandy clay loam, organic matter content was 1,68%, rate of water was 50,52%, bulk density was 1,01 g/cm3, particle density was 2,04 g/cm3, and porosity was 50% with infiltration capacity was 37 x 10-6 m/s (quickly). At palm oil estate, its texture was sandy clay loam, organic matter content was 0,84%, rate of water was 27,69%, bulk density was 1,14 g/cm3, particle density was 2,28 g/cm3, and porosity was 49,09% with infiltration capacity was 8,4 x 10-6 m/s (medium). And at rubber estate, its texture was sandy clay loam, organic matter content was 1,14%, rate of water was 38,71%, bulk density was 1,1 g/cm3, particle density was 2,24 g/cm3, and porosity was 50,91% with infiltration capacity was 0,6 x 10-6 m/s (very slow). Keywords: Infiltration capacity, land use types, Sei Silau Barat Village

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

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

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