The present work takes as title Estimate of capture of Carbon in four species of grasses: Brachiaria brizantha, Brachiaria decumbes, Pennisetum purpureun and Saccharum sinensis in Cuñumbuque - San Martin", the objectives were to Quantify the reservations of Carbon of the air biomass, in the trash and in the floor in four species of grasses: Brachiaria brizantha, Brachiaria decumbes, Pennisetum purpureun and Saccharum sinensis, in the District of Cuñumbuque, County of you Lick, Department of San Martin and to Establish the pertinent physiologic relationships among the treatments evaluated in relation to a witness (corn) in the District of Cuñumbuque, County of you Lick, Department of San Martin. Likewise the Design of Blocks was used Totally at random with 5 treatments and 4 repetitionf;. T~e treatments were: T ~ Saccharum sinensis, T 2 Brachiaria decumbes, T 3 Brachiaria brizantha, T4...