Grey relational analysis and evaluation of integrated benefits of new farming systems on upland red soil

Field experiment research on several new farming systems was conducted from November 2003 to October 2004 to determine feasible farming systems for developing cropping potential on upland red soils. Based on grey relational analysis,various ecological benefit indexes were used to evaluate economic,social,ecological and integrated benefits of several new farming systems on upland red soils.Results show that grey relational degree of “cabbage／potato／maize-sesame”is the highest among the new farming systems.It can cover social,economic and ecological benefits,ensure increasing yield and farmers income and realize sustainable development of agricultural production.Therefore,“cabbage/potato/maize-sesame”is a feasible farming system on upland red soils with high yield,effciency and quality.