Some of our products are produced in research- productive fields and other in monitored farms, by the expert supervision and integrating conventional and conservation methods of management and advantage IPM, increasing organic material of the soil, advantage of manure and compost, crop rotation with the aim of move towards sustainable agriculture and confirmation of food security. Potato may uptake high values of nitrate. This product founded on non-use chemical pesticides and fertilizers or by maximum permissible levels (limits) of them. These products have permissible level (limit) of pesticides, nitrate and heavy metals. We use manure and compost for fertilization.