The CNCs workshop in Portugal provided key findings on agricultural fertilisation practices. Discussions focused on essential data for decision-making, available tools and technologies, and barriers to adoption. Farmers emphasised the importance of soil analysis and fertilisation history, though challenges persist in quantifying organic nutrient content. Traditional methods like fertilisation tables and soil tests were widely used, whereas newer technologies, such as sensors and decision-support software, faced adoption difficulties due to cost and complexity. Participants highlighted the need for independent research, technology demonstrations, and financial incentives to promote efficient fertilisation. Universities, consultants, and policymakers were identified as key players in facilitating change. Overall, the workshop reinforced the necessity of informed policies and collaborative efforts to improve sustainable fertilisation strategies in Portuguese agriculture.