This document discusses research on scaling up agricultural innovations. It argues that scaling up is a complex process involving many mechanisms and effects beyond just increasing the scope or coverage of a given innovation. The document presents conceptual frameworks to help understand scaling processes across different levels and dimensions. It also discusses interpretive frameworks to analyze factors that support or hinder scaling up. The research aims to integrate scaling perspectives into agricultural systems research from the beginning to better account for how innovations may change when spreading more widely. The document highlights a case study on scaling up "green rubber" cultivation in China to demonstrate these analytical approaches.