DESEMPENHO DO ALGODOEIRO BRS SAFIRA EM CONSÓRCIOS AGROECOLÓGICOS NO SEMIÁRIDO

Abstract

The Cotton has long been one of the main crops income generating and hand labor in Semiarid. Besides the aspects referents a economic problems and the emergence of the boll weevil (Anthonomus grandis) in the early 80's, changes in the technological matrix and subsequent increase in costs of production promoted the collapse of the cotton industry, semiarid. Currently the cultivation of organic cotton is associated with at least three food crops. The objective of this study was to analyze the efficiency of intercropping systems of upland cotton, cv. BRS Safira, verifying indicators agroeconomic, energy efficiency and yield components in conditions of semi-arid Brazilian family farming. We analyzed two intercropping, T1: cotton+corn+beans, T2: cotton+peanut+sesame and your respective moncultive and the were compared during the year 2008 and 2009 under agroecological management. The efficiency of intercropping was measured by land equivalent ratio (LER), productive efficiency ratio (IEP), the land equivalent ratio of time (ATER) and equivalent coefficient of earth (LEC), data were taken yield, height, number of branches and number of productive vegetative branches. All data inputs and outputs of energy these two intercropping systems were collected and recorded as well as their respective moncultive. The arrangement cotton+corn+bean showed higher cotton yields in the intercropping BRS Safira. The intercropping interfere in cotton yield but do not alter the qualities of fiber. Increased energy efficiency and cost was achieved when cotton was intercropped with maize and beans.