s:568:"TI Cyclical or permanent smallholder rubber agroforestry system with or without slash and burn 
AU Wibawa G 
AU Hendratno S 
AU Boutin D 
AU Hardiwinoto S 
AU Sukandi T 
AU van Noordwijk, M. 
AB Rubber is an important tree crop in Indonesia (covering 3.5 millionha), most of it (83%) is “jungle rubber” managed by smallholders. Thislow input system combines profitability and environmental protection.Two basic options exist for rejuvenation: SLASH-and-BURN basedcyclical systems (CRAS, Photo 1) or by GAP-planting in permanentagroforests (PRAS, Photo 2) 
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