In the pilot lots of task 3.7 will be tested good agronomic techniques for reducing nitrate leaking risk , such as: i) for fruits, use of ‘cover crops’ (and green manure) and / or localized grassing in the inter-row (combined with organic matrices on the row), in comparison with mechanical processing; ii) for vegetables, comparison between different types , doses and application times of fertilizers (mineral / organic). Nitrogen content will be monitored at various depths and times.