Land suitability study for sweet sorghum (Sorghum bicolor (L.) Moench) farming in Pleret Yogyakarta

Abstract Marginal land and geological disaster-prone in the Opak Fault zone area need to be studied for basic potential development of multi-purpose crops food, feed, renewable energy. The study was aimed determine soil evaluate suitability sweet sorghum ( Shorgum bicolor ) crop Gunung Kelir, Pleret District, Bantul, Yogyakarta as part line. A total 20 sample points were collected based on data, use, slope, administrative maps. Analysis physical chemical properties carried out classify types plants. developing soils originated from volcanic breccias, Young Merapi Volcano, alluvial River, with included orders Entisols Inceptisols. cation exchange capacity that develop breccias is higher than those soils. Suitability plants includes S2 class limiting factors nutrient retention, temperature, erosion hazard ± 24,011 Ha (76.23%), S3 surface stonies 3.85 (12.22%), N a root constraint 0.139 (0.44%), others are not agriculture. Based results this it expected able developed enhance use marginal land.