This research project called: "lnfluence of sources and rates of applied nitrogen and dry sheet of water to rice (Oryza satíva L.) under tillage system in Tarapoto - San Martin", lt was conducted at the Agricultura! Experimental Station "El Porvenir" - INIA - PNIA.Rice, within the period from March to July 2014, in order to determine the influence of incorporated nitrogen percentage of the nitrogen sources and types of aplication in the tillage system, on rice yields in variety INIA 509 - "La Esperanza". Where three factors are studied: Percentage of incorporated nitrogen (Factor N); Method of fertilization (Factor M); and nitrogen sources (Factor F), block design was completely randomized factorial arrangement of 2 x 2 x 3, with three replications. The results showed that fertilization in dry soil incorporated with water increase yields regardless of the nitrogen sources that are used,...