Good Agricultural Practices (GAP), as defined by FAO, are a "collection of principles for on-farm production and post-production processes, resulting in safe and healthy food and non-food agriculture products, while considering economic, social and environmental sustainability." GAP are about understanding, planning and measurement, record, and management to achieve specific social, environmental, and productive objectives. GAPs goals are: to ensure food safety, to produce in a way that protects the environment and avoids its degradation, to ensure job well-being, and to obtain quality products according to consumer demand. For example, FAO enumerates general categories such as GAP for food safety, to improve market access or ensure water quality. GAP can be achieved by different actions depending on the crop, geography, available tools, and a diversity of variables. A federated catalog of GAPs that could be accessed by different stakeholders using different aspects is desirable. Also, as there are a diversity of GAPs experiences in the world, a catalog about those experiences is a helpful tool to help farmers exchange and adoption of knowledge. This chapter presents a semantic wiki repository that focuses on GAPs related to intensive horticultural activity in aspects that may be subject to improvement. The repository is framed in what is currently considered a collaborative repository. The wiki includes a description, goals, and methodologies of each good practice defined in GAP. Also, the wiki contains links to tutorials, external sites about the agricultural field, and legal documentation.