s:686:"%T Tree-soil-crop interactions in sequential and simultaneous agroforestry systems %A Hairiah, D.K. %A Cadisch G %A van Noordwijk, M. %A Lusiana, B. %X The paper reviews concepts and methods for studying tree-soil-crop interactions. It discusses an empirical approach to separate positive from negative interactions, and obtain a process-level understanding of the components. Descrives framework for the synthesis of component knowledge. It indicates that the final outcome of an agroforestry system for a specific farmer depends both on the nature (inherent plant qualities) and the nature (effects of the abiotic and biotic environment, farmer management) of the system. ";