Alternativas de produção em propriedades agrícolas do Projeto de Desenvolvimento Rural Integrado do Brejo Paraibano

Abstract

The ob j ect i ve of this study was to determine the comb| nation of enterprises that maximizes the income of the farms in sub-area I of the PDRI of Brejo Paraibano, according to the van ious sizes of enterprises. Spec i fica I Iy: - To identify and characterize the productive process es currentIy utiIized by the farmers, - To identify and characterize the productive process es recommended by the project„ - To determine the best combination cf enterprises for current and recommended technoIogy,as weII as compIementary analysis of post-optimization„ - To compare the levei of the recommended activities by PDRI of Brejo Paraibano with the levei of these same activ ities in the best solution. The data uti I ized were obtained through questionaires from the research work: Survey and Analysis of Soeia I-Economic Aspects for Evaluation and Monitoring of the PDRI of Brejo Paraj_ bano. These data, refering to the agricultural year of 1977,were used to determine the technical coeficients for the existinc technoIogy, The data to determine the technical coeficients of the recommended techno1ogy were obtained from PDRI of Brejo Pa raibano, except data on manioc, which carne from information of the technicians of institutions such as Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) and the regional office of Empre sa de Assistência Técnica e Extensão Rural (EMATER - PB),in João Pessoa, Paraiba0 Seventy-nine questionaires were selected and divided into four classes according to the size of the properties. These questionaires were taken from a popuIation of 2.590 farmers in the sub-area 1 attended by the project. A comparison between the recommended activities of the project and the activities that outIined the best solutior for the pi anned situation with recommended tec.iology showed thai the activities manioc and manioc - "mu Iatinho" beans were ücí in ali classes, and when used they were at a Iower leve! than the recommended by the project. On the other hand, the recommended activity potato-cotton showed up in ali classes with higher lev eis than stipulated by PDRI of Brejo Paraibano., The land wos total ly utilized in ali classes in two of the situations studied, and clearly showed the availability of land as one of the principal problema of smaII farmers, The available labor was not totally used in any combination of activities in the different situations studied, and the excess was unemployed during the whole year except for per_[ od 3 of the third class, in the situation pi anned with new tech nology0 With the exisJ:ing a Iterr.at ives, the resources of the smaII farms were utiIized almost rationally. This fact showed a smaII increase in the objective function when one moves from the current situation to the planned situation with existing technoIogy. The third situation showed better results when the activities with existing technology competed with recommended technology in terms of returns of the fixed factor (objective funct ion). These results Iead to a general conclusion that the procedure recommended by PDRI of Brejo Paraibano is different from the results found in this research.