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Abdul Rauf
University of Sumatera Utara
Agriculture, Biological Sciences & Forestry

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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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.683 KB) | DOI: 10.32734/jaet.v6i3, Juli.18088

Abstract

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
Studying on Chemical Properties of Paddy Soil In Sunggal Sub District Deli Serdang Regency Yunita Carolin Hutapea; Abdul Rauf; Mukhlis Mukhlis
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.807 KB) | DOI: 10.32734/jaet.v6i4,Okt.19069

Abstract

This study aimed to analyze and determine the chemical properties of paddy soil in the Sunggal sub district so that it can be determined Sunggal paddy soil fertilizer recommendations. Research using surveys with sampling techniques stratified random sampling based on the type of rice fields Rainfed and Irrigation and data analysis pH with methods Elektrometri, C organic method of Walkley and Black, the N total with methods Kjeldhal, P available by the method of Bray II, cations base (K+,Na+,Ca2+,Mg2+)by the method of extraction of NH4OAc 1N pH 7, CEC with NH4OAc 1 N pH 7 extraction method and Base Saturation with the calculations. Results of research on the soil for rainfed and irrigation showed that the pH of dominant soil slightly acid, organic C dominant low, N total is low, P available predominantly very low, K exchange dominant low, Ca exchange is low, Mg exchange the dominant medium, Na exchange low dominant, dominant CEC being, Base Saturation is very low dominant. Soil fertility status of rainfed and irrigation is relatively very low to low, except in rainfed Puji Mulyo village were moderate due to high organic C.
Co-Authors Charlan B Lombu Deni Elfiati fitra syawal Jamilah Jamilah Mariani sembiring Mukhlis Mukhlis Nofriyanto Pakolo Nuraini Nuraini Rahmawaty, Rahmawaty Roswita Oesman Supriadi Supriadi Yunita Carolin Hutapea