In recent years, many government and private organization efforts have been devoted to bring e-business technologies to agricultural domain. It is quite possible in agriculture marketing scenario that for a complete business process, an agricultural marketing activity can make the use of various existing business applications with loosely coupled and open computing environment. However, there is a need to develop a proper underlying infrastructure that links legacy business applications and provides an environment for a competitive business. Web service is an internet-based software component that can shield all sorts of heterogeneous business applications on basis of Service-oriented Architecture standards. In this paper, a Web service composition framework (WSCF) is presented to offer the effective business integration for agriculture marketing. It models various business processes as Web services and the process-based Web services composition can be carried out a complete business process spanned across various existing business applications. We are following WSCF to achieve our objective in ongoing project e-agricultural business platform.