In the present research work, the application effect of three sources and three dose of organic payments were evaluated (Worm Humus, Bovine Manure and Hens Manure), in soya crops, comparing with a witness without any payments and to demonstrate what sources and what levels that you even choose they are those but favorable to increase the yields. The study was made in Caspizapa district, province of Picota, Region of San Martin to 73 Kilometers from Tarapoto city. The objetives of this work were to determine the sources and the security dose but adapted in the soya cultivation, Crystalline variety that produces high yields under tropical dry forest condi~ions and ·to determine the production costs of different treatments and their cost benefit. Relationship. lt . Was used the design at random in Complete Blocks with factorial arrangement 3 x 4 and three · repetitions for each treatment....