Susunan Horison Tanah Sawah pada Toposekuen Latosol Berbahan Induk Volkanik di Daerah Bogor – Jakarta

Teti Arabia (Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala)
Sarwono Hardjowigeno (Institut Pertanian Bogor)
Sudarsono Sudarsono (Institut Pertanian Bogor)
Widiatmaka Widiatmaka (Institut Pertanian Bogor)
Nata Suharta (Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian)

Jurnal Agrista
Vol 12, No 3 (2008): Volume 12 Nomor 3 Desember 2008

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.