Farmstar – Satellites for agriculture “Farmstar” is a service that enables farmers to manage their wheat, barley, triticale and rapeseed crops. Maize will be added in 2019. Farmstar uses satellite imagery to measure variables in the field on 20 x 20 meter areas. This information is linked to agronomic models, weather and farm specifications. This allows for accurate advice at the individual plot level. For example, for nitrogen fertilisation adapted to the different soil areas on the field. Farmstar allows the farmer to carry out variable nitrogen fertilisation. Today, 16,000 farmers use Farmstar’s service. The farmer can save up to 40 € per hectare of nitrogen and achieve yield gains of up to 48 € per hectare. He has to deduct the costs for the service of about 15 euros from this. If a farmer wants to subscribe to Farmstar, he has to contact his cooperative or his local dealer. The subscription is set up in winter. The farmer then informs the cooperative technician about his crops: For example, about the variety he has sown, the sowing date, etc. He must provide a plan of the plots so that Farmstar can locate them. As a subscriber, he receives a series of cultivation recommendations for the duration of his crops.