The gardening is presented as a credible alternative of crop’s diversification. The potato’s crop (Solanum tuberosum L.) is being done in all the eight regions. On a yearly cycle form October to March. In Agadez region it is producted all over the year. In Tillaberi region particularly at Imanan the practice of two cycles (primary and later) is tested instead of a single yearly cycle as an innovation. The aim of article is to comtribute at the impmrovement of the potato’s crop productivity during a year. The methodology has consisted to lead inquiries and observation of local cultural practices (ground preparation, tuber fragmentation, after pre germination, buttage). From October to December for the primary and from January to March for the later. The plurality of the harvest for the two cyces is of 66 tone against 33 tone of normal cycle. On the other side the selling price of the kg the primary of Decembre and the later of March were respectively 400 and 200 CFA. Whereas the production of February is sold 200 CFA per kg because the offer exceder the demande. It is clearly established that the practice of the two yearly cycles get more products and and incomes.