This document provides the agenda for the 4th International Conference on Agriculture & Horticulture held from July 13-15, 2015 in Beijing, China. It includes the schedule of presentations over the three days, organized by topic into various tracks. On day one, the keynote speakers will discuss issues like increased crop yield through improved photosynthesis. Presentations cover a wide range of agricultural topics, such as the effects of organic fertilizers, pesticide use, drought resistance varieties, and remote sensing applications. Poster sessions will also be held.