Resource information
Vegetables are mostly grown in mountainous areas with an altitude >400 m a.s.l., such as Temanggung, Central Java. The steep slope farming considers very little environmental suitability and sustainability. This study was conducted in 2004, covering a total area of 87,223 ha. Soil samples were analyzed for soil texture, pH, C, N, P, K, CEC, exchangeable cations, and base saturation. Soil characteristics data were used for land suitability evaluation for vegetables crops using the Automated Land Evaluation System (ALES) program. The results showed that 36,992 ha (42.4%) of the area is located in the elevation of 400-700 m a.s.l. and about 46,786 ha (53.6%) with elevation >700 m a.s.l. The district is dominated by volcanic parent materials (83.31%), deriving Andisols with shallow (15% covering 40,600 ha (46.55%) area. The district’s annual rainfall ranges from 2,375-3,054 mm with 7-9 wet months (rainfall >200 mm) and
