The greaters of Farming In terms added in the figure-4, are possible to observe small changes signaling for a concentration of the VAIN one between the five bigger cities, in 1999 this participation were of 13% of the generated value and went up for 15% in 2008, in the monetary comparison between periods had an addition of 2,36 times, that is, the added value age of R$ 234,387 (a thousand Reals) and arriving R$ 558,449 (a thousand Reals). Figure 4? Participation of the five bigger cities in the VAIN one of the farming one? Par, 1999 and 2008 Elaboration: IDESP? Management of Studies and Socioeconmicas Research (2010) How much the biggest participation between the five cities had been identified significant alternations between the greaters, what it is justified for the great border of expansion that exists between them and the investments in the sector of grains and cattle extensive. In 1999, Paragominas and Is Flix of the Xing presented the biggest contributions of VAIN in the farming one and in 2008, a bigger prominence is notable for Is Flix of the Xing that increases its relative participation for 4,7%, and if it detaches in this period the city of Santarm that increases its participation of 1,9% for 3,4% in the VAIN one occupying the second position in the biggest sectorial contribution in the farming one (table-2).. .