TEKNOLOGI REHABILITASI LAHAN GAMBUT BONGKOR UNTUK BUDIDAYA PADI

Abstract The utilization of of peat land for agriculture through reclamation (land opened by drainage cannals construction). Tidalswamps were reclaimed in?5 years (1968 until 1993) predicted about 1.2 million hectares by goverment and about 3.0 millions hectare by community self. Area had reclaimed about 0.80 million hectares was peat lands. The reality showed that after five years more a part of these land became sleeping land (bongkor). Theprediction of peat land areilSin Ex Mega Rice Project (MRP) mainly in block C area such as Pulang Pisau and a part of Kapuas district areas Central Kalimantan provincy, a part of Barito Kuala areas, 50uth Kalimantanprovincy, Ogan Kering Ilir and Banyuasin districts of South Sumatera provincy as sleeping land areas. Sleeping peaat lands area were decreased of land quality include low acidity, hidrophobics condition so that a rise ''irreversibledrying as resulted overdrained. Rehabilitation of peat land were employed by approach (a) flooding or usage of tide water as flusshing, (b) soil amendment by ameliorant matterial and combination the usage of water single tide maintained in the plot for a day and drained in the low with ameliorant applied. . The interaction between the usage of the single tide maintained in the plot for a day and drained in the low tide (Ll) and ameliorant + fertilizer (A1) levels equivalent (4.800 dolomite + 5.860 farm manure +119 urea +119 SP36 + 79,5 KC/) kg.ha-1on saprictpeat increased to lechate water-pH and decreased to disolved acidity, (b) The treatment Lo resulted in rice yield of 3.600 tha-1 harvestdry seed on the cultivation of IR 66 or 19.50 % higher than the yield of the Martapura(3.020 tha-1) The treatment A1 resulted 4.360 tha-1 in the RS and 2.670 tha-1 in the OS on the cultivationof IR66. Keywords: Rehabilitation, Sleeping land (peat), Ric