Guest edited collection: nanotechnology in agriculture Alejandro pérez-de-Luque Agriculture must overcome several challenges in order to increase-or even maintain-production, while also reducing negative environmental impact. nanotechnology, fundamentally through the development of smart delivery systems and nanocarriers, can contribute to engineering more efficient and less contaminant agrochemicals. This Collection presents recent related works, covering nanodevices that improve crop protection against pests and diseases, nanoformulations for enhancing plant nutrition, and nanomaterials strengthening the general crop performance.