Twelve treatments, a complete factorial combination of four soil-crop management practices and three fertilizer inputs, were tested at this site. The treatments involve soil and crop management and fertilizer inputs.

• 这一地点采用12个处理，4种土壤-作物管理措施和3种肥料投入量的全因子设计。处理包括土壤-作物管理与肥料投入。