The present work of investigaci6n was carried out in the area of ​​the Experimental Station "El Porvenir" in the Valle del Bajo Mayo, province of San Martin, geographically characterized by having the following coordinates: West Longitude 76 ° 5 ', 6 ° 35 'south latitude and 356 meters above sea level; Aiming to evaluate v Adaptation of Tropical hybrid corns and maturity Precocious PERFORMANCE IS FUNCTION AND PERFORM Economic Analysis of the best treatments. Performance and Complementary vegetative characteristics were evaluated using statistical design randomized complete block (RCBD) with 3 replications and 20 treatments, the results Were analyzed using analysis of variance and multiple significance test of Duncan. The experimental soil was residual source flat surface with clayey, alkaline reaction (pH = 7.8), organic matter content media (3.1%), nitrogen and phosphorus total co...