L’oignon est une des principales cultures irriguées de la région de Maradi avec la tomate, la pastèque et le moringa. Il est produit sur la majorité des sites d’irrigation de la région. Les données du Ministère de l’Agriculture pour la campagne 2011-2012 annoncent 780 ha pour une production de 24.150 tonnes d’oignon, soit un rendement de 30 tonnes par ha. Cela mettrait la région de Maradi en 5ème position pour la production d’oignon, juste devant Diffa, Niamey et Agadez (surprenant dernier). Celles pour la campagne de 2012-2013 annoncent 954 ha pour une production de 26.700 tonnes soit un rendement de 28 tonnes par ha. Le classement est identique.
Rice is the third most important crop in Niger and showsthe most rapidly increasing consumption. Rice importsgrew from 40,000 t in 1995 to 210,000 t in 2005 at a costof US$ 71.4 million in a country where nearly 60% of thepopulation lives below the poverty line [1,2]. Rice is produced mainly in the region of Tillabéry (75% national production) where about 1/7 of Niger’ s population live [3,4].With 100,000 ha of arable and irrigable lands, this regionof Tillabéry has nearly 50% of the country’ s irrigable land.There are 29 irrigated rice schemes (with double cropping each year) that cover 7,432 ha (85.3% of the nationalirrigated schemes) in Tillabéry. The average rice grain yield in this agrosystem is 3.5 to 4.5 t ha−1[5,6]. This intensive system, under the control of local farmer unions andsupervised by the Office National des Aménagements Hydro-Agricoles (ONAHA), currently produces 30,000 to
35,000 t year−1. Private irrigated systems with individual
water pumps are also found in this area. The irrigated ecosystems are planted only with improved Asia-type (Oryzasativa) cultivars. The traditional rice growing in the Tillabéry region accounts for about 62.13% of lowland rice production.