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Jamilah Jamilah

University of Sumatera Utara

Author-ID : 3056955

Agriculture, Biological Sciences & Forestry

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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

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

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

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

Co-Authors Abdul Rauf Alida Lubis hamdi fadli kurniawan Johannes Simbolon Nuraini Nuraini Purba Marpaung Siti Maqdisa

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