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Sarwono Hardjowigeno
Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry

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Susunan Horison Tanah Sawah pada Toposekuen Latosol Berbahan Induk Volkanik di Daerah Bogor – Jakarta Teti Arabia; Sarwono Hardjowigeno; Sudarsono Sudarsono; Widiatmaka Widiatmaka; Nata Suharta
Jurnal Agrista Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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The Sequence of Horizons of Paddy Soils in a Toposequence of Latosol on Volcanic Parent Materials in the Bogor – Jakarta AreaABSTRACT. The sequence of horizons of paddy soils is different from non paddy cultivated. The aim of the research were: (1) to study the sequence of horizons of paddy soils in a toposequence of Latosol on Volcanic materials in the Bogor – Jakarta Area; (2) to study the sequence of paddy cultivated intensity to sequence of horizons. Twelve pedons of different altitude (90 – 650 m above sea level) and different paddy cultivated intensity (0/year, 1/year, 2/year) were investigated sequence of horizons in the field. The result of the research showed that the horizons sequence, on non paddy cultivated soils consist of: tillage layers and the original soil layers. On 1x paddy/year consist of: plow pan layer, and iron/manganese/nodule Mn illuviation layer. On 2x paddy /year consist of: tillage layer of surface reduction, plow pan layer, Fe/Mn illuviation layer, and reduce subsurface layer.
Kenampakan Pedologi Tanah Sawah yang Berasal dari Toposekuen Berbahan Induk Volkanik di Daerah Bogor – Jakarta Teti Arabia; Sarwono Hardjowigeno; Sudarsono Sudarsono; Widiatmaka Widiatmaka; Nata Suharta
Jurnal Agrista Vol 13, No 1 (2009): Volume 13 Nomor 1 April 2009
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

(The Pedological Features of Paddy Soils from a Toposequence on Volcanic Parent Materials in the Bogor – Jakarta Area)ABSTRACT. The pedological feature of paddy soils are different from the non paddy cultivated. The aim of the research were: to study the pedofeatures of paddy soils in a toposequence on volcanic materials in the Bogor – Jakarta area; to study the influence of paddy cultivated intensity of pedofeatures. Twelve pedons of different altitude (90 – 650 m above see level) and different paddy cultivated intensity (0/year, 1/year, 2/year) were investigated, each horizons were sampled for laboratory analysis to study the pedofeatures. The result of the research showed that on non paddy cultivated, pedofeature observed at B horizon is indicating rock weathering. On 1x paddy, at tillage layer nodules and hypocoating were found. On 2x paddy, at plow plan layer clay infilling dense complete was found.
Co-Authors Nata Suharta Nurul Khumaida Teti Arabia Widiatmaka